FREE BOOKS

Author's List




PREV.   NEXT  
|<   116   117   118   119   120   121   122   123   124   125   126   127   128   129   130   131   132   133   134   135   136   137   138   139   140  
141   142   143   144   145   146   147   148   149   150   151   152   153   154   155   156   157   158   159   160   161   162   163   164   165   >>   >|  
fe, one specimen from Dos Aguas (UMMZ 119451) had a cream-colored belly; the edges of the ventrals were dark brick-red. In Michoacan this snake inhabits pine-oak, pine, and fir forests at elevations between 1550 and 2800 meters in the Cordillera Volcanica and the Sierra de Coalcoman. Most specimens were found beneath rocks; the one from Tzitzio was removed from the stomach of a Mexican Motmot (Anderson, 1960:66). ~Thamnophis dorsalis cyclides~ Cope _Thamnophis cyrtopsis cyclides_ Cope, Proc. Acad. Nat. Sci. Philadelphia, 13:299, December 28, 1861.--Cape San Lucas, Baja California (in error). Type locality restricted to Guanajuato, Guanajuato, Mexico, by Smith and Taylor (1950a:330). Smith, Copeia, no. 2:140, June 8, 1951. Milstead, Texas Jour. Sci., 5:368, September, 1953. _Thamnophis eques eques_ (_nec._ Reuss), Smith, Zoologica, 27:106, October 23, 1942. Bogert and Oliver, Bull. Amer. Mus. Nat. Hist., 83:356, March 30, 1945. _Thamnophis vicinus_ Smith, Zoologica, 27:104, October 23, 1942.--Temazcal, Michoacan, Mexico. _Thamnophis dorsalis cyclides_, Fitch and Milstead, Copeia, no. 1:112, March 17, 1961. Barolosa; Coalcoman; Dos Aguas (3); Los Reyes; Morelia (16); Opopeo; Pino Gordo; Tacicuaro (16); Tancitaro (14); Tangamandapio (2); Temazcal (2); Tzintzuntzan; Uruapan. The snakes comprising the former _Thamnophis eques_-group have undergone extensive taxonomic and nomenclatural shuffling by Smith (1942 and 1951), Bogert and Oliver (1945), Milstead (1953), and Fitch and Milstead (1961). Smith recognized in Michoacan three members of the _T. eques_ (= _dorsalis_) complex: _eques eques_, _eques postremus_, and _vicinus_. Later, Smith (1951) showed that the specific name _eques_ had been misapplied, so that _T. eques eques_ became _T. cyrtopsis cyclides_, and _T. eques postremus_ became _T. cyrtopsis postremus_; under this arrangement _T. vicinus_ stood unchanged. In the meantime, Bogert and Oliver (1945:359) presented a reinterpretation of Smith's data and suggested that _T. vicinus_, which differs from _T. dorsalis cyclides_ only in lacking a middorsal stripe, "... is not a species, but only a pattern phase, possibly a simple mutant of _T. e. eques_" (= _T. dorsalis cyclides_, by present arrangement). Milstead (1953) agreed with Bogert and Oliver on the status of _T. vicinus_; furthermore, on the basis of only a few spec
PREV.   NEXT  
|<   116   117   118   119   120   121   122   123   124   125   126   127   128   129   130   131   132   133   134   135   136   137   138   139   140  
141   142   143   144   145   146   147   148   149   150   151   152   153   154   155   156   157   158   159   160   161   162   163   164   165   >>   >|  



Top keywords:
cyclides
 

Thamnophis

 

vicinus

 
Milstead
 

dorsalis

 

Oliver

 

Bogert

 

cyrtopsis

 

postremus

 

Michoacan


Copeia

 
Coalcoman
 

October

 
Mexico
 
Zoologica
 

arrangement

 

Guanajuato

 

Temazcal

 

undergone

 

shuffling


members

 

recognized

 

nomenclatural

 

taxonomic

 

extensive

 
Tangamandapio
 

Morelia

 

Opopeo

 

Barolosa

 

Tacicuaro


snakes

 

comprising

 
Uruapan
 

Tancitaro

 

Tzintzuntzan

 

specific

 

pattern

 

possibly

 

species

 

middorsal


stripe
 
simple
 

mutant

 

status

 

present

 
agreed
 

lacking

 
misapplied
 
specimen
 

showed