Noteworthy Herptiies' from Mexico 
By Ivo Poglaypn and Hobart M. Smith 
• ' % 
During April 1956 the senior author collected a number of reptiles 
and amphibians in various parts of Mexico. Some remain alive «n the 
Rio Grande Park Zoo at Albuquerque, New Mexico. The preserved 
specimens are in the University of Illinois Museum of Natural History, 
to which cited collection numbers refer unless otherwise specified. The 
specimens of special interest are recorded herewith. Measurements in mm. 
Bohtoglossa rujescens (Cope).- Two (40861-2) 10 km. N San» Fern¬ 
ando, Chiapas, April, 1956, are typical adults, with markings and com¬ 
plete absence of maxillary teeth characteristic of the species. Two col¬ 
lected by C. G. Goodnight, July, 1947, Pichucalco (3200) and the ruins 
of Palenque (11287).. The species has been reported before in Chiapas 
only from Palenque. 
Bohtoglossa Occident ahs Taylor. One (40860) 10 km. N San Fern- 
^ ando (a small village 20 km. NW Tuxtla Gutierrez), Chiapas, is the 
only record from the Atlantic drainage of that state and the only evidence 
that rujescens an d occide nialis occur sympatrically. 
The present specimen raises a question of possible subspecificity or 
even synonymy of these two forms. All Pacific specimens examined have 
maxillary teeth, however, and Atlantic specimens do not, with this one 
exception. Since there is no evidence of intergradation it seems necessary, 
on the basis of present knowledge, to continue recognition of the two 
forms as species. Furthermore, since the specimen from San Fernando is 
from a locality very close to the previously known range of occidenialis it 
need not be envisioned as a variant of rujescens. More specimens from 
this area would Be of interest in establishing the status of these two forms. 
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Uncolni (El Quiche) 
sp. nov.(Quezaltenango) 
morio (San Marcos) 
(Chimalfenango) 
(Jalapa) 
(El Quiche) 
fiovimembris (Chiapas) 
» (San Marcos) 
heJmrichi (Pu r u 1 ha) 
11 (Zacapa) 
(El Volcan) 
cuchumafona [El Quiche I) 
» ( » 2 ) 
engelhordti (San Marcos) 
sp. nov. (Zacapa) 
ro sir a to (San Marcos) 
dunni (San Pedro Sula I) 
\ .1 p) 
hortwegi (Chiapas) 
dofleini (El Volcan) 
occidentotis (Catemaco) 
rufescens (Cuautlapam) 
(Palenque ) 
(Ocosingo) 
(Ocozocoautla) 
(El Volcan) 
(Rosa de Copan) 
(San Pedro Sula) 
occidentotis (Tapachula) 
(Santa Julia) 
(Berriozabal) 
FlC. 3.—Phylogenetic tree constructed from Rogers (1972) genetic distance according to the method of 
itch and Margoliash (1967) representing 31 populations of Bohtoglossa beta. %SD = 5.83, excluding 
n cages shown in broken lines, which are the result of consolidation of additional comparisons (see Tables 
and 3). Several nodes arc dated according to the method of Maxson and Maxson (1979); standard enrors 
•fleet genetic distance variation across the nodes. 
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