MEXICAN SNAKES AND CRiOCODILTANS — SMITH 487 



TOLUCA LINEATA ACUTA (Cope) 



Tohica lincata acuta Taylor and Smith, Univ. Kansas Sci. Bull., vol. 28, 

 pp. 346-348, 1942. 



Two typical specimens (Nos. 1107G1-2) are from Cacaloapan, Pueb- 

 la. The first is a male, the second a female. Kespectively the ventrals 

 are 119, 128; caudals 38, 32; supralabials and infralabials 7-7; pre- 

 oculars 1-1; postoculars 2-2; temporals 1-2, 1-2 (2-2) ; total length 

 228 mm., 123 mm. ; tail length 45 mm., 19 mm. 



The Museum has one other specimen, the type (No. 30552), said to 

 be from Juchitan, Oaxaca, but almost certainly not. 



TOLUCA LINEATA VARIANS (Jan) 



Toluca lincata varians Taylor and Smith, Uiiiv. Kansas Sci. Bull., vol. 28, pp. 

 34S-350, 1942. 



Sixty-three specimens were secured, above Acultzingo, Veracruz 

 (Nos. 110671-725), near Puente Colorada, Veracruz (Nos. 110748-50), 

 and at Pajaro Verde, Puebla (Nos. 110760, 110756-9). One of these, 

 when discovered by turning a stone, flattened the fore part of the body 

 somewhat as an Heterodon or Ninia. No other specimen of the genus 

 has been observed to do so by me. All were found under stones. 



The Museum has two others, No. 30551 from "Mexico" (Sumi- 

 chrast), and No. 110957 from Orizaba, Veracruz. 



The veracity of the locality data on these specimens cannot be 

 doubted, since practically all were collected by my wife and me. 

 Although three localities are cited, all are within a radius of half a 

 mile and in the same sort of terrain. Five of this series have 15 

 scale rows posteriorly (25,35), and one ( 5 ) has 16; all others have 

 17 scale rows throughout the body. In 29 females the ventrals vary 

 from 128 to 138, average 133.1 (128, 3; 129, 3; 130, 1; 131, 1; 132, 3; 

 133, 4; 134, 7; 135, 3; 136, 1; 138, 3) ; in 33 males they vary from 119 

 to 127, average 123.4 (119, 2; 120, 3; 122, 2; 123, 8; 124, 8; 125, 6; 126, 3; 

 127, 1). The caudals vary in 27 females from 29 to 36, average 32.9 

 (29, 1; 30, 2; 31, 3; 32, 4; 33, 7; 34, 5; 35, 4; 36, 1) ; in 31 males they 

 vary from 36 to 44, average 40.5 (36, 1; 37, 2; 38, 2; 39, 4; 40, 6; 41, 5; 

 42, 5; 43, 5; 44, 1). There is one entire subcaudal scale in one speci- 

 men; in all others all the caudals are entire. The posterior chin 

 shields are separated in 35 (16$, 195), in contact in 28 (135, 155). 

 The minimum rows of scales from the chin shields to the first full 

 width (first counted) ventral vary from 2 to 6. The total ventral 

 counts, including these small scales, from chin shields to anal plate, 

 vary from 131 to 142 in females, 122 to 131 in males; in both sexes 

 the range of variation is increased by 1, but also both variation curves 

 are somewhat smoothed (females, 131, 1; 132, 2; 133, 2; 134, 3; 135, 2; 



