By Author | [ A B C D E F G H I J K L M N O P Q R S T U V W X Y Z | Other Symbols ] |
By Title | [ A B C D E F G H I J K L M N O P Q R S T U V W X Y Z | Other Symbols ] |
By Language |
Download this book: [ ASCII ] Look for this book on Amazon Tweet |
Title: A New Long-eared Myotis (Myotis Evotis) From Northeastern Mexico Author: Baker, Rollin H. (Rollin Harold), 1916-2007, Stains, J. Language: English As this book started as an ASCII text book there are no pictures available. Copyright Status: Not copyrighted in the United States. If you live elsewhere check the laws of your country before downloading this ebook. See comments about copyright issues at end of book. *** Start of this Doctrine Publishing Corporation Digital Book "A New Long-eared Myotis (Myotis Evotis) From Northeastern Mexico" *** A New Long-eared Myotis (Myotis evotis) from Northeastern México BY ROLLIN H. BAKER AND HOWARD J. STAINS =University of Kansas= =Lawrence= 1955 =University of Kansas Publications= =Museum of Natural History= Vol. 9, No. 3, pp. 81-84 December 10, 1955 Editors: E. Raymond Hall, Chairman, A. Byron Leonard, Robert W. Wilson PRINTED BY FERD VOILAND, JR., STATE PRINTER TOPEKA, KANSAS 1955 25-8617 A New Long-eared Myotis (Myotis Evotis) From Northeastern México BY ROLLIN H. BAKER AND HOWARD J. STAINS Long-eared bats obtained by field parties from the University of Kansas in the Mexican states of Coahuila, Nuevo León, and Tamaulipas, are found to belong to the species, _Myotis evotis_, but are not referable to any named subspecies. They are named and described as follows: #Myotis evotis auriculus# new subspecies _Type._--Female, adult, skin and skull; No. 55110, Univ. Kansas Mus. Nat. Hist.; 10 mi. W and 2 mi. S Piedra, 1200 ft., Sierra de Tamaulipas, Tamaulipas; 9 June 1953; obtained by Gerd H. Heinrich, original number 7061. _Distribution._--Coastal foothills and adjacent mountains of northeastern México from central Coahuila south and east to central Veracruz. _Diagnosis._--Size medium (see measurements), ears small for the species; color dark, upper parts (_j_14) Ochraceous-Tawny (color terms are after Ridgway, Color Standards and Color Nomenclature, Washington, D. C., 1912), underparts Warm Buff, ears pale; skull large, teeth large, mandible long. _Comparison._--From _Myotis evotis evotis_ (H. Allen), from Colorado, Wyoming, and Montana, _M. e. auriculus_ differs in: Ears averaging shorter; color darker and richer; ears paler and contrasting less, in color, with pelage; skull larger in all measurements taken except that of least interorbital constriction; forehead, when viewed laterally, rising more abruptly, because frontal region is more inflated; teeth larger. _Remarks._--_Myotis evotis auriculus_, although no larger externally than _M. e. evotis_, has a larger skull, which in lateral view has a more abruptly rising forehead. The teeth, especially the first upper premolars, of _auriculus_ are noticeably larger than those of _evotis_. The first two lower premolars are sub-equal in _auriculus_ whereas in _evotis_ the first lower premolar usually is larger. The mandible, in relation to the greatest length of the skull, is longer in _auriculus_ (ratio, 71-74) than in _evotis_ (ratio, 67-71). Coahuilan specimens, although assigned to _auriculus_, are slightly paler (upper parts (16) Ochraceous-Tawny; underparts (_e_) Light Buff) and have less abruptly rising foreheads than do the bats from Tamaulipas. In these features, the Coahuilan animals are somewhat intermediate between typical _auriculus_ and _evotis_. The bat from Nuevo León, in both color and degree of slope of forehead, is intermediate between those from Coahuila and those from Tamaulipas. A bat from Perote, Veracruz, identified as _Myotis evotis chrysonotus_ (J. A. Allen) [=_M. e. evotis_] by Miller and Allen (U. S. Nat. Mus., Bull. 144:118 and 120-121, May 25, 1928) is here assigned to _M. e. auriculus_. Measurements given by these authors indicate that this bat has a large skull, which is characteristic of this subspecies. Another specimen, similarly assigned by these authors and from the San Luis Mountains in northwestern Chihuahua, seems to be _M. e. evotis_, although the published measurements (_loc. cit._) show that this bat tends toward _auriculus_ in size of skull and mandible. All specimens were taken in mist nets stretched over water. Those from Coahuila were snared over a concrete water tank situated near the base of low hills in mixed mesquite and chaparral. In Nuevo León, one bat was netted over a small pond around which grew some low trees in an intermontane valley in the Sierra Madre Oriental. In Tamaulipas two bats were caught in a mist net stretched across a narrow, brush-bordered arroyo in the Sierra de Tamaulipas. One adult male weighed 7.0 grams; average and extreme weights of 7 adult, non-pregnant females were 6.8 (5.2-8.0). Females taken on March 25 and 26 were not pregnant; one obtained on June 20 was lactating. Funds for financing field work were made available by the Kansas University Endowment Association and the National Science Foundation. _Measurements._--Measurements, in millimeters, of the holotype and another female (No. 55111 KU) from the type locality and 3 females (Nos. 44726, 44729-30 KU) from Coahuila, respectively, are: total length, 94, 93, 97, 86, 96; length of tail vertebrae, 43, 42, 41, 39, 45; length of hind foot, 9.5, 9, 10, 10, 8; height of ear from notch, 20, 20, 20, 18, 20; length of forearm, 37.9, 38.4, 40.2, 37.3, 38.5; greatest length of skull, 16.1, 16.4, 16.2, 15.8, 16.1; condylobasal length, 15.4, 15.4, 15.6, 15.0, 15.4; zygomatic breadth, 9.7, 9.9, 10.1, 9.4, 9.9; least interorbital constriction, 3.9, 3.8, 3.9, 3.7, 3.7; breadth of braincase, 7.5, 7.6, 7.5, 7.5, 7.6; occipital depth, 5.9, 5.9, 5.5, 5.7, 5.6; palatal length, 8.5, 8.7, 8.7, 8.7, 8.9; mastoid breadth, 8.2, 8.4, 8.3, 8.2, 8.3; breadth across third upper molars, 6.1, 6.2, 6.3, 6.1, 6.1; length of maxillary tooth-row, 6.5, 6.5, 6.7, 6.6, 6.6; length of mandible, 11.5, 11.8, 11.9, 11.2, 11.7; length of mandibular tooth-row, 8.0, 8.0, 8.1, 8.1, 8.1. _Specimens examined._--Total, 8, all in the University of Kansas Museum of Natural History. Coahuila: 4 mi. W Hacienda La Mariposa, 2300 ft., 5 (2 alcoholics). Nuevo León: Iturbide, 5000 ft., Sierra Madre Oriental, 1. Tamaulipas: 10 mi. W and 2 mi. S Piedra, 1200 ft., Sierra de Tamaulipas, 2. _Transmitted April 16, 1955._ *** End of this Doctrine Publishing Corporation Digital Book "A New Long-eared Myotis (Myotis Evotis) From Northeastern Mexico" *** Doctrine Publishing Corporation provides digitized public domain materials. Public domain books belong to the public and we are merely their custodians. This effort is time consuming and expensive, so in order to keep providing this resource, we have taken steps to prevent abuse by commercial parties, including placing technical restrictions on automated querying. We also ask that you: + Make non-commercial use of the files. We designed Doctrine Publishing Corporation's search system for use by individuals, and we request that you use these files for personal, non-commercial purposes. + Refrain from automated querying Do not send automated queries of any sort to Doctrine Publishing's system: If you are conducting research on machine translation, optical character recognition or other areas where access to a large amount of text is helpful, please contact us. We encourage the use of public domain materials for these purposes and may be able to help. + Keep it legal - Whatever your use, remember that you are responsible for ensuring that what you are doing is legal. Do not assume that just because we believe a book is in the public domain for users in the United States, that the work is also in the public domain for users in other countries. Whether a book is still in copyright varies from country to country, and we can't offer guidance on whether any specific use of any specific book is allowed. Please do not assume that a book's appearance in Doctrine Publishing means it can be used in any manner anywhere in the world. Copyright infringement liability can be quite severe.