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diff --git a/33509-8.txt b/33509-8.txt new file mode 100644 index 0000000..daf86aa --- /dev/null +++ b/33509-8.txt @@ -0,0 +1,887 @@ +The Project Gutenberg EBook of Taxonomic Status of Some Mice of The +Peromyscus boylii Group in Eastern Mexico, With Description of a New Subspecies, by Ticul Alvarez + +This eBook is for the use of anyone anywhere at no cost and with +almost no restrictions whatsoever. You may copy it, give it away or +re-use it under the terms of the Project Gutenberg License included +with this eBook or online at www.gutenberg.org + + +Title: Taxonomic Status of Some Mice of The Peromyscus boylii Group in Eastern Mexico, With Description of a New Subspecies + +Author: Ticul Alvarez + +Release Date: August 23, 2010 [EBook #33509] + +Language: English + +Character set encoding: ISO-8859-1 + +*** START OF THIS PROJECT GUTENBERG EBOOK TAXONOMIC STATUS OF SOME *** + + + + +Produced by Chris Curnow, Joseph Cooper and the Online +Distributed Proofreading Team at http://www.pgdp.net + + + + + + +[Transcriber's Note: The following typographical errors are noted, +but not corrected in the text: + page 116: "typotypes" should be "topotypes" + page 116: "Potosi" should be "Potosí" + page 116: "Sán Miguel" should be "San Miguel" + page 116: "Sán Isidro" should be "San Isidro" + page 117: "pleateau" should be "plateau" + page 120: "Nuevo Leon" should be "Nuevo León"] + + +UNIVERSITY OF KANSAS PUBLICATIONS +MUSEUM OF NATURAL HISTORY + + +Volume 14, No. 7, pp. 111-120, 1 fig. + +December 29, 1961 + + + + +Taxonomic Status of Some Mice of The +Peromyscus boylii Group in Eastern Mexico, +With Description of a New Subspecies + +BY + +TICUL ALVAREZ + + +UNIVERSITY OF KANSAS +LAWRENCE +1961 + + +UNIVERSITY OF KANSAS PUBLICATIONS, MUSEUM OF NATURAL HISTORY + +Editors: E. Raymond Hall, Chairman, Henry S. Fitch, +Theodore H. Eaton, Jr. + +Volume 14, No. 7, pp. 111-120, 1 fig. +Published December 29, 1961 + + +UNIVERSITY OF KANSAS +Lawrence, Kansas + + +PRINTED BY +JEAN M. NEIBARGER, STATE PRINTER +TOPEKA, KANSAS +1961 + +[Illustration] + +29-393 + + + + +Taxonomic Status of Some Mice of The Peromyscus boylii Group in Eastern +Mexico, With Description of a New Subspecies + +BY + +TICUL ALVAREZ + + +Saussure (1860) described _Peromyscus aztecus_ from southern México. +Osgood (1909) by comparison of one of Saussure's specimens with some +from Mirador, Veracruz, concluded that _aztecus_ was a subspecies of _P. +boylii_. Dalquest (1953) incorrectly reported specimens of _P. boylii_ +from San Luis Potosí as _P. b. aztecus_. Merriam (1898) named +_Peromyscus levipes_ from Mt. Malinche, Tlaxcala. Thomas (1903) +described from Orizaba, Veracruz, _P. beatae_, which Osgood (1909) +mistakenly thought was indistinguishable from _P. boylii levipes_. +Therefore, Osgood in 1909 in his revision of the genus _Peromyscus_ +reported only two subspecies of _P. boylii_ from eastern México: _P. b. +levipes_, and _P. b. aztecus_. Study of Osgood's and Thomas' material, +along with recently collected specimens from the states of eastern +México, leads me to conclude that _P. aztecus_ and _P. boylii_ are +different species; that _P. beatae_ is a valid subspecies different from +_P. b. levipes_; and finally that specimens of _P. boylii_ from Nuevo +León and northwestern Tamaulipas pertain to an hitherto unnamed +subspecies. + + +#Peromyscus aztecus# Saussure + + 1860. _H[esperomys]. aztecus_ Saussure, Revue et Mag. Zool., + Paris, ser. 2, 12:105, type from southern México, probably + from the vicinity of Mirador, Veracruz, according to Osgood + (N. Amer. Fauna, 28:156-157, April 17, 1909). + + 1909. _Peromyscus boylei aztecus_, Osgood, N. Amer. Fauna, + 28:156, April 17. + + _Geographic distribution._--Known only from Mirador and Jalapa + in Veracruz, and Huachinango in Puebla. + + _Diagnosis._--Size medium for the genus (see measurements); tail + about as long as head and body; dorsal coloration near Sayal + Brown (capitalized color terms after Ridgway, 1912); sides + reddish; underparts Light Buff; tail bicolored but not + distinctly so; supraorbital border of skull angular, and bullae + pointed anteriorly; anterior half of braincase nearly straight + (not rounded) as viewed from above; upper molar series long + (4.7-5.0); incisive foramina short in relation to length of + skull. + + _Comparisons._--From _Peromyscus boylii_, _P. aztecus_ differs + as follows: Larger in most parts measured; maxillary tooth-row + 4.7-5.0 instead of 4.0-4.6; color brighter on sides (reddish + instead of ochraceous); supraorbital border angular instead of + rounded; anterior border of zygomatic plate convex in upper half + and almost straight in lower half as opposed to nearly straight + throughout in _boylii_; pterygoid fossa broader; bullae more + pointed anteriorly and less inflated; mesostyles of upper molars + larger; surface between orbital region and nasals convex in + lateral view instead of flat. + +_Remarks._--When Saussure (1860:105) described _P. aztecus_ he did not +designate a type or type locality. Osgood (1909:157) designated as +lectotype the mounted specimen, in the Geneva Museum, which has the +skull inside and of which Saussure figured the molar teeth. Osgood +(_loc. cit._) examined one of the three specimens (No. 3926 USNM) that +Saussure used in describing _P. aztecus_ and found that it agreed "in +every respect with recently collected specimens from Mirador, Veracruz, +which, in the lack of exact knowledge, may be assumed to be the type +locality, as it is certain that some at least of Saussure's specimens +were taken near there." + +[Illustration: FIG. 1. Two species of _Peromyscus_. + 1. _P. boylii ambiguus_ + 2. _P. boylii beatae_ + 3. _P. boylii levipes_ + 4. _P. aztecus_ (triangles)] + +Osgood regarded _P. aztecus_ as a subspecies of _P. boylii_ because of +the resemblance between _aztecus_ and _P. b. evides_, but _evides_ is +far removed geographically (occurring only in western México) from +_aztecus_, and is smaller. _P. aztecus_ is larger than any known +subspecies of _P. boylii_, and is not known to intergrade with _P. b. +levipes_ or _P. b. beatae_ (with which _aztecus_ occurs sympatrically at +Jalapa, Veracruz), the two subspecies of _boylii_ that are found nearest +the geographic range of _P. aztecus_. Also, as mentioned previously, +_aztecus_ possesses distinctive characters that distinguish it from all +subspecies of _boylii_. For these reasons I regard _aztecus_ as a +distinct species. + +According to Hall and Kelson (1959:634), _P. aztecus_ occurs in San Luis +Potosí, Hidalgo, and west-central Veracruz, but their map 364 is based +on the records of Osgood (1909:158) and Dalquest (1953:143). I have +examined all the specimens reported by the two authors last named and +find that those from San Luis Potosí are _P. boylii levipes_. + +The diagnosis and comparisons here presented of _aztecus_ were based on +specimens from Mirador in comparison with all the specimens of _P. +boylii_ from eastern México listed beyond. The largest specimens of _P. +boylii_ that I have examined are from Las Vigas, Veracruz, and +localities within a radius of five kilometers thereof. Some measurements +of these large specimens of _P. boylii_ overlap those of _P. aztecus_ +but the two kinds of mice differ greatly in characters of the skull, in +color, and in length of tail. + +The specimens (three adults and three juveniles) from Huachinango, +Puebla, are slightly darker than specimens from Mirador but do not +differ otherwise. Of two specimens reported from Jalapa, Veracruz, by +Osgood (1909:158), one (108547 USNM) agrees with specimens from Mirador +in color and cranial characteristics and is _P. aztecus_, whereas the +other (108548 USNM) is _P. b. beatae_. + + _Specimens examined._--Total 16 (all USNM) as follows: PUEBLA: + Huachinango, 6. VERACRUZ: Mirador, 9; Jalapa, 1. + + +#Peromyscus boylii levipes# Merriam + + 1898. _Peromyscus levipes_ Merriam, Proc. Biol. Soc. + Washington, 12:123, April 30, type from Mt. Malinche, 8400 + ft., Tlaxcala. + + 1909. _Peromyscus boylei levipes_, Osgood, N. Amer. Fauna, + 28:153, April 17. + + _Geographic distribution._--Southeastern Tamaulipas and eastern + San Luis Potosí, south through the central states of México to + Guatemala. + + _Diagnosis._--Size medium for the species; tail shorter or + longer than head and body (83-112.3%); color variable according + to locality but in general ochraceous, having some dusky on + upper parts; supraorbital border not angular, almost rounded; + auditory bullae large. + + _Comparisons._--For comparisons see accounts of the subspecies + discussed beyond and Osgood (1909:145). + +_Remarks._--A precise diagnosis for _P. b. levipes_ is difficult to +prepare because some geographic variation in color and in the cranial +characters is present within the range of the subspecies as here +understood. For instance there is a gradual cline of decreasing size to +the northward in nearly all measurements, but the ratio of length of +tail to length of head and body does not present such a cline; mice +from several localities in San Luis Potosí have a relatively shorter +tail than do mice from farther north and from farther south. Also, +specimens labeled in reference to Zacualpilla, Jacales, Jacala, +Tulancingo, and San Miguel Regla average slightly darker dorsally than +do typotypes. Some of these specimens are reddish on the cheek and +lateral line. Specimens from San Luis Potosí resemble topotypes, but +some specimens from northeastern localities in that state have cinnamon +or brownish upper parts and are intermediate in coloration between +populations of _levipes_ to the south and populations of the same +subspecies to the north from the Sierra Madre Oriental and the Sierra de +Tamaulipas. Specimens from these two sierras have a cinnamon-reddish +color that is more intense in specimens from the Sierra de Tamaulipas. + +Osgood (1909:153) recorded _P. b. levipes_ as occurring from central +Nuevo León south through San Luis Potosí, Hidalgo, and Veracruz to +southern Oaxaca. Actually specimens from Nuevo León and from most parts +of Veracruz differ subspecifically from _levipes_ and also from each +other. In Veracruz, _P. b. levipes_ is known only from the northwestern +part. + + _Specimens examined._--Total 179 as follows: TAMAULIPAS: Sierra + Madre Oriental, 5 mi. S, 3 mi. W Victoria, 1900 ft., 2; _8 mi. + S, 6 mi. W Victoria, 4000 ft._, 37; Sierra de Tamaulipas, 2000 + ft., 8 mi. S, 11 mi. W Piedra, 13. SAN LUIS POTOSI: Villar, 11 + (USNM); 10 km. E Platanito, 19 (LSU); _8 mi. E (by road) Santa + Barbarita_, 12 (LSU); _Agua Zarca_, 3 (LSU); 6 km. NE Cd. Maíz, + 13 (LSU); _Pendencia Region (Puerto Lobos)_, 1 (LSU); + _Pendencia, 2-1/2 mi. N Puerto Lobos_, 5 (LSU); 3 km. SW Sán + Isidro, 15 (LSU); Cerro Coneja Region, Llano Coneja, 6100 ft., 2 + (LSU); Xilitla, 4 (LSU). HIDALGO: 10 mi. NE Jacala, 5050 ft., 7; + Regla (Sán Miguel), 2250 m., 4; Arroyo de las Tinajas, 2370 m., + 9.5 km. SSW Tulancingo, 1; 10 mi. NW Apam, 7750 ft., 1. + VERACRUZ: 3 km. N Zacualpan, 6000 ft., 1; _3 km. W Zacualpan, + 6000 ft._, 12; _2 km. N Los Jacales, 7500 ft._, 8; _6 km. WSW + Zacualpilla, 6500 ft._, 5. TLAXCALA: Mt. Malinche, 3 (USNM). + + +#Peromyscus boylii beatae# Thomas + + 1903. _Peromyscus beatae_ Thomas, Ann. Mag. Nat. Hist., ser. 7, + 11:485, May, type from Xometla Camp, Mt. Orizaba, Veracruz. + + _Geographic distribution._--East side of the Sierra Madre + Oriental in Veracruz, from Jalancingo south to Xuchil. + + _Diagnosis._--Size large for the species; tail no shorter than + head and body (100-114.8%); dorsum dark (near Prout's Brown or + Mummy Brown middorsally, Clay Color on sides); supraorbital + border rounded; anterior palatine foramina long. + + _Comparisons._--_P. b. beatae_ differs from other subspecies of + _P. boylii_ by the combination of large size, long tail, and + dark color. + +_Remarks._--Thomas (1903:485) described _P. beatae_ on the basis of five +specimens from Xometla Camp (lat. 18° 59' N, long. 97° 10' W) and one +juvenile from Santa Barbara Camp, both on the Volcán de Orizaba, +Veracruz. Thomas thought that _beatae_ was related to _aztecus_, but the +differences relied on by him to distinguish the two are the same as +those that distinguish _aztecus_ from _boylii_. Osgood (1909:153) placed +_beatae_ in synonymy under _P. b. levipes_ because Mount Orizaba (type +locality of _beatae_) is "relatively very near" Mount Malinche (type +locality of _levipes_), and Thomas had not compared _beatae_ with +_levipes_. Xometla, on the east side of the Volcán de Orizaba, is +approximately 56 miles east of the Tlaxcalan part of Mount Malinche and +is situated where the Tropical Life-zone begins, whereas Mount Malinche +is in the Austral Life-zone on the Mexican Plateau; the difference in +habitat between the two places is great. Topotypes of _levipes_ differ +from two topotypes of _beatae_ in the same fashion as do other specimens +of _levipes_ (from San Luis Potosí) from other specimens of _beatae_ +(from Veracruz). Unfortunately, the topotypes of _beatae_ lack external +measurements and are subadults, but their coloration agrees with that of +other specimens that are here referred to _beatae_. + +Hall and Kelson (1959:634, map 364) incorrectly mapped the distribution +of _levipes_ in Veracruz. There are at least two places named Xuchil in +the state of Veracruz and Hall and Kelson (_loc. cit._) unfortunately +plotted the one at lat. 20° 42' N, long. 97° 42' W whereas the specimens +actually were collected at the Xuchil on the pleateau south of the +Volcán de Orizaba (18° 53' N, 97° 14' W) in the west-central part of +Veracruz. The specimens from Xuchil are _P. b. beatae_. + +Intergradation in color between the two subspecies _levipes_ and +_beatae_ is seen in specimens from Jalapa and Zacualpan (3 km. N, also +others from 3 km. W), Veracruz. Intergradation between these two +subspecies possibly will be found elsewhere along the Sierra Madre +Oriental. + + _Specimens examined._--Total 60 as follows: VERACRUZ: 1 km. E + Jalancingo, 6500 ft., 2; _2 km. S Jalancingo_, 2; 6 km. SSE + Altotonga, 8000 ft., 8; _1 km. W Las Vigas, 8500 ft._, 2; Las + Vigas, 8500 ft., 13; _2 km. E Las Vigas, 8000 ft._, 5; _3 km. E + Las Vigas, 8000 ft._, 8; _5 km. E Las Vigas_, 7 (TAM); _5 km. N + Jalapa, 4500 ft._, 2; _Jalapa_, 1 (USNM); 10 km. SE Perote, N + slope Cofre de Perote, 10,500 ft., 1 (TAM); Xometla Camp, Mt. + Orizaba, 8500 ft., 2 (BM); _Sta. Barbara, Mt. Orizaba, 12,000 + ft._, 1 (BM); Xuchil, 6 (CM). + + +#Peromyscus boylii ambiguus# new subspecies + + _Type._--Male, adult, skin and skull, No. 33092, United States + National Museum, from Monterrey, Nuevo León; obtained on + February 17, 1891, by Wm. Lloyd, original number 377. + + _Geographic distribution._--Eastern Coahuila, central Nuevo + León, and the Sierra San Carlos, Tamaulipas. + + _Diagnosis._--Size small for the species; tail averaging longer + than head and body (90-114%); dorsal coloration ochraceous, + slightly darker middorsally; cheeks and lateral line Capucine + Orange; skull small; supraorbital border rounded; anterior + palatine foramina short. + + _Comparisons._--_P. b. ambiguus_ differs from _P. b. levipes_ in + smaller size, longer tail relative to length of head and body, + smaller incisive foramina, brighter and paler color, and + relatively broader interorbital region. From _P. b. beatae_, _P. + b. ambiguus_ differs in being smaller in all parts measured and + paler. + +_Remarks._--Osgood (1909:155) reported as _P. b. levipes_ 37 specimens +from Monterrey and 18 from Cerro de la Silla, Nuevo León, but noted that +they were "aberrant." I have examined those same specimens and can +hardly decide to which species, _P. boylii_ or _P. pectoralis_, they +belong. Everything considered I, as did Osgood, opine that the specimens +are _P. boylii_. However, I do not rule out the possibility that in this +area there is an unnamed species, because I find an unusually wide range +of variation in such cranial characters as size of the bullae, width and +form of the pterygoid fossa, and shape of the braincase. Extremes of +these characters are not constantly associated except in one specimen +(33124 USNM), which is the smallest of all the adults examined. It has +small bullae, a short rostrum, widely spreading zygomatic arches +anteriorly, and a narrow pterygoid fossa, but does not differ externally +from the other specimens. Additional material from this area is needed +in order to make out the systematic position of these mice. + +Because of the wide range of variation in some of its characters, _P. b. +ambiguus_ is difficult to diagnose. Nevertheless, its small external and +cranial size, short anterior palatine foramina, and bright color seem to +separate it from other subspecies of _P. boylii_ in the eastern part of +the range of the species. These differences are most conspicuous when +specimens from the northernmost part of the range of _levipes_ are +compared with specimens of _ambiguus_. + +The specimens from the Sierra San Carlos, Tamaulipas, closely resemble +_levipes_ in color, but are referred to _ambiguus_ on the basis of small +size, as also are the two specimens from 12 km. E San Antonio de las +Alazanas, Coahuila. + +TABLE 1. MEASUREMENTS (IN MILLIMETERS) OF PEROMYSCUS + +A: Number of specimens +B: Total length +C: Length of tail-vertebrae +D: Length of hind foot +E: Per cent length of tail to head and body +F: Greatest length of skull +G: Zygomatic breadth +H: Interorbital constriction +I: Length of nasals +J: Palatine slits +K: Maxillary tooth-row + +=======+======+======+=====+======+=====+=====+====+=====+====+==== + A | B | C | D | E | F | G | H | I | J | K +-------+------+------+-----+------+-----+-----+----+-----+----+---- + _P. aztecus_ + Mirador, Veracruz +-------+------+------+-----+------+-----+-----+----+-----+----+---- + 7 mean| 229 | 113 | 24.5| ... | 30.1| 15.3| 4.7| 12.5| 6.4| 4.8 + max.| 238 | 121 | 26 | ... | 30.9| 15.8| 5.0| 13.5| 6.8| 5.0 + min.| 215 | 107 | 24 | ... | 29.2| 14.9| 4.6| 11.2| 5.7| 4.7 +-------+------+------+-----+------+-----+-----+----+-----+----+---- + _P. boylii beatae_ + Las Vigas to 3 km. E thereof, Veracruz +-------+------+------+-----+------+-----+-----+----+-----+----+---- +14 mean| 219.3| 116.7| 23.8| 113.7| 28.9| 14.4| 4.5| 11.5| 6.3| 4.5 + max.| 235 | 130 | 25 | 128.9| 29.8| 15.1| 4.7| 12.5| 6.8| 4.8 + min.| 204 | 107 | 22 | 100.0| 27.9| 13.8| 4.2| 10.7| 5.9| 4.4 +-------+------+------+-----+------+-----+-----+----+-----+----+---- + 6 km. SSE Altotonga, Veracruz +-------+------+------+-----+------+-----+-----+----+-----+----+---- + 5 mean| 224.4| 116.1| 24.1| 109.4| 29.1| 14.5| 4.5| 11.6| 6.4| 4.5 + max.| 241 | 126 | 25 | 114.8| 30.1| 15.2| 4.6| 12.0| 6.7| 4.7 + min.| 221 | 110 | 24 | 100.0| 28.6| 14.0| 4.4| 11.2| 6.0| 4.3 +-------+------+------+-----+------+-----+-----+----+-----+----+---- + _P. boylii levipes_ + 3 km. SW San Isidro, San Luis Potosí +-------+------+------+-----+------+-----+-----+----+-----+----+---- +11 mean| 205.6| 99.5| 22.4| 93.8| 28.5| 14.2| 4.4| 11.3| 5.9| 4.4 + max.| 219 | 114 | 23 | 108.6| 30.5| 14.5| 4.6| 12.2| 6.4| 4.6 + min.| 193 | 90 | 21 | 87.4| 27.2| 13.8| 4.2| 10.8| 5.6| 4.1 +-------+------+------+-----+------+-----+-----+----+-----+----+---- + 6 km. NE Cd. del Maíz, San Luis Potosí +-------+------+------+-----+------+-----+-----+----+-----+----+---- + 9 mean| 198.7| 96 | 22 | 93.4| 28.1| 14.0| 4.4| 11.2| 6.0| 4.5 + max.| 205 | 105 | 22 | 105.0| 28.7| 14.2| 4.6| 11.7| 6.4| 4.6 + min.| 187 | 90 | 22 | 85.7| 27.3| 13.4| 4.3| 10.6| 5.7| 4.3 +-------+------+------+-----+------+-----+-----+----+-----+----+---- + 11 mi. W, 8 mi. S Piedra, Tamaulipas +-------+------+------+-----+------+-----+-----+----+-----+----+---- + 5 mean| 201.8| 101.8| 22.6| 101.8| 28.5| 14.0| 4.4| 11.3| 6.1| 4.3 + max.| 214 | 110 | 23 | 109.3| 29.0| 14.1| 4.6| 11.5| 6.2| 4.7 + min.| 193 | 94 | 22 | 94.9| 28.2| 13.9| 4.2| 11.0| 6.0| 4.1 +-------+------+------+-----+------+-----+-----+----+-----+----+---- + _P. boylii ambiguus_ + La Vegonia, Tamaulipas +-------+------+------+-----+------+-----+-----+----+-----+----+---- + 7 mean| 199.1| 101.6| 21.3| 104.3| 26.9| 13.4| 4.3| 10.5| 5.6| 4.3 + max.| 213 | 109 | 22.4| 108.9| 28.6| 13.7| 4.5| 11.8| 5.9| 4.7 + min.| 188 | 97 | 20 | 98.0| 26.4| 13.2| 4.2| 9.5| 5.3| 4.1 +-------+------+------+-----+------+-----+-----+----+-----+----+---- + Monterrey, Nuevo León +-------+------+------+-----+------+-----+-----+----+-----+----+---- +16 mean| 199.7| 103.2| 21.3| 106.9| 27.6| 13.9| 4.4| 10.7| 5.6| 4.2 + max.| 216 | 114 | 22 | 125.6| 28.2| 14.9| 4.6| 11.5| 5.8| 4.5 + min.| 176 | 92 | 19 | 88.0| 26.8| 13.2| 4.1| 10.2| 5.0| 4.0 +-------+------+------+-----+------+-----+-----+----+-----+----+---- + + _Specimens examined._--Total 64 as follows: NUEVO LEON (USNM): + Monterrey, 37; _Cerro de la Silla_, 18. COAHUILA: 12 km. E San + Antonio de las Alazanas, 9000 ft., 2. TAMAULIPAS: La Vegonia, + Sierra San Carlos, 7 (UMMZ). + + +I am grateful to the following persons for the loan of specimens: G. B. +Corbet, British Museum, Natural History (BM); David H. Johnson, United +States National Museum (USNM); George H. Lowery, Jr., Louisiana State +University (LSU); Philip Hershkovitz, Chicago Natural History Museum +(CM); William B. Davis, Texas Agricultural and Mechanical College (TAM); +W. H. Burt and Emmet T. Hooper, University of Michigan Museum of Zoology +(UMMZ). Specimens lacking designation as to collection are housed in the +Museum of Natural History of The University of Kansas. I am indebted to +Professor E. Raymond Hall and Mr. J. Knox Jones, Jr. for the use of +these specimens and for other assistance. It is appropriate to record +also that the findings reported above are an outgrowth of related work +done as a Research Assistant under Grant No. 56 G 103 from the National +Science Foundation. + + + + +LITERATURE CITED + + +DALQUEST, W. W. + + 1953. Mammals of the Mexican state of San Luis Potosí. Louisiana + State Univ. Biol. Sci. Ser., 1:1-233, December 28. + +HALL, E. R., and KELSON, K. R. + + 1959. The mammals of North America. The Ronald Press, New York, + vol. 2:ix + 547-1083 + 79, illustrated, March 31. + +OSGOOD, W. H. + + 1909. Revision of the mice of the American genus Peromyscus. N. + Amer. Fauna, 28:1-285, 8 pls., April 17. + +RIDGWAY, R. + + 1912. Color standards and color nomenclature. Washington, D. C., + iv + 43 pp., 53 pls. + +SAUSSURE, M. H. de + + 1860. Note sur quelques mammifères du Mexique. Revue et Mag. + Zool., Paris, ser. 2, 12:97-110, March. + +THOMAS, O. + + 1903. _On three new forms of _Peromyscus_ obtained by Dr. Hans + Gadow, F. R. S., and Mrs. Gadow in Mexico._ Ann. Mag. Nat. + Hist., ser. 7, 11:484-487, May. + + +_Transmitted June 30, 1961._ + + +29-393 + + + + + +End of the Project Gutenberg EBook of Taxonomic Status of Some Mice of The +Peromyscus boylii Group in Eastern Mexico, With Description of a New Subspecies, by Ticul Alvarez + +*** END OF THIS PROJECT GUTENBERG EBOOK TAXONOMIC STATUS OF SOME *** + +***** This file should be named 33509-8.txt or 33509-8.zip ***** +This and all associated files of various formats will be found in: + http://www.gutenberg.org/3/3/5/0/33509/ + +Produced by Chris Curnow, Joseph Cooper and the Online +Distributed Proofreading Team at http://www.pgdp.net + + +Updated editions will replace the previous one--the old editions +will be renamed. + +Creating the works from public domain print editions means that no +one owns a United States copyright in these works, so the Foundation +(and you!) can copy and distribute it in the United States without +permission and without paying copyright royalties. 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