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A Taxonomic Study of the Middle American Snake, Pi

Transcriber's Notes

Italic typeface is indicated by _underscores_. Bold typeface is indicated by =equals=.

In this ASCII text version accented characters are shown as follows: acute accent on a, e, i, o, u, E is marked ['a], ['e], ['i], ['o], ['u], ['E]; umlaut on u, U is marked [:u], [:U]; tilde on n is marked [~n].

The following corrections only have been made to the text:

"Rijkmuseum van Natuurlijke Histoire" changed to "Rijksmuseum van Natuurlijke Historie" (Rijksmuseum van Natuurlijke Historie, Leiden)

Period changed to comma (Erp['e]tologie g['e]n['e]rale, vol. 7, p. 268)

"Chipas" changed to "Chiapas" (Guatemalan highlands and probably highlands of Chiapas.)

The style of the majority of citations in this paper are of the form "(year: page)". A small number of citations have been ammended to add the space following the colon.

* * * * *

UNIVERSITY OF KANSAS PUBLICATIONS MUSEUM OF NATURAL HISTORY

Vol. 10, No. 10, pp. 599-610, 1 pl., 1 fig. May 2, 1960

A Taxonomic Study of the Middle American Snake, Pituophis deppei

BY

WILLIAM E. DUELLMAN

UNIVERSITY OF KANSAS LAWRENCE 1960

UNIVERSITY OF KANSAS PUBLICATIONS, MUSEUM OF NATURAL HISTORY

Editors: E. Raymond Hall, Chairman, Henry S. Fitch, Robert W. Wilson

Volume 10, No. 10, pp. 599-610, 1 pl., 1 fig. Published May 2, 1960

UNIVERSITY OF KANSAS Lawrence, Kansas

PRINTED IN THE STATE PRINTING PLANT TOPEKA, KANSAS 1960

28-2493

PLATE 45

[Illustration: FIG. 1. _Pituophis deppei deppei_ from Cumbres de Acultzingo, Veracruz, UMMZ 114596. Approx. 1/2 natural size.]

[Illustration: FIG. 2. _Pituophis lineaticollis lineaticollis_ from Dos Aguas, Michoac['a]n, UMMZ 119567. Approx. 1/3 natural size.]

A Taxonomic Study of the Middle American Snake, Pituophis deppei

BY

WILLIAM E. DUELLMAN

INTRODUCTION

As a part of a study of the herpetofauna of the Mexican state of Michoac['a]n an attempt was made to ascertain the interspecific and intraspecific relationships of the various populations of _Pituophis_ there. Field work in Michoac['a]n revealed that two supposed subspecies of _Pituophis deppei_ were sympatric. This discovery led to the examination of all available (124) museum specimens of these snakes.

I am grateful to the following persons who permitted me to examine specimens in their care: Charles M. Bogert, American Museum of Natural History (AMNH); Doris M. Cochran, United States National Museum (USNM); Norman Hartweg, University of Michigan Museum of Zoology (UMMZ); Robert F. Inger, Chicago Natural History Museum (CNHM); Arthur Loveridge, Museum of Comparative Zoology (MCZ); Hobart M. Smith, University of Illinois Museum of Natural History (UIMNH); and Edward H. Taylor, E. H. Taylor--H. M. Smith collection (EHT-HMS). Specimens in the accounts of the species are listed after the abbreviations of the institutions given in parentheses above.


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