160 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 91 



Table 1. — Scale counts of Trimorphodon biscutatus biscutatus 



TRIMORPHODON LATIFASCIA Peters 



Trimorphodon biscutata latifascia Petees, Monatsb. Akad. Wiss. Berlin, 1869, 



p. 877 (Puebia). 

 Trimorphodon latifascia Taylor, Kansas Univ. Sci. Bull., vol. 25, pp. 3647-865 



(part), pi. 36, fig. 2, 1938 (1939) ; vol. 2G, p. 479, pi. 52, 1940. 



Diagnosis. — A light, transverse nuchal collar ; hemipenis long, with 

 a median belt of spines ; blotches very long, 13 to 15 on body, 5 to 7 

 on tail, the first covering 15 or more scale lengths middorsally ; num- 

 ber of ventrals involved by each dark band slightly more to half 

 number involved bj^ adjacent light areas. 



Specimens examined. — Ten . 



Locality records. — "Puebia" (perhaps the region of Matamoras) ; 

 12 miles south of Puente de Ixtla, Morelos; Huajintlan, Morelos; 

 between Cuernavaca and Tepoztlan, Morelos. 



Remarks.— H&mi^&ms (EHT-HMS No. 5540, Huajintlan, Morelos) 

 28 caudals long (in situ), with three large flounces extending 10 caudal 

 lengths proximaily, followed by an area of enlarged spines about 

 three caudals long; remainder with longitudinal ridges surmounted 

 by tiny spines. 



TRIMORPHODON FASCIOLATA, new species 



Eolotype.—V.^.'^.'M.. No. 110400, male, from near Zararacua Falls, 

 6 kilometers southeast of Uruapan, Michoacan. 



