280 



Agkistrodon rhodostoma^ Barbour, Mem. Mus. Comp. Zool. Harv. Coll. XLIV 

 1912, p. 139. 



Snout somewhat turned up at the end; rostral as deep as 

 broad or a little more deep; internasals and praefrontals present; 

 frontal as long as its distance from the tip of the snout or a 

 little longer, about as, long as the parietals; loreal separating 



Fig. 114. Agkistrodon rhodostoma\(Ro\e). X 9 /iO- 



the posterior nasal from the upper praeocular; one or two 

 postoculars; one subocular; loreal pit separated from the labials; 

 7 9 upper labials. Scales in 21 rows, smooth; ventrals 138 161; 

 anal entire; subcaudals 33 54, in two rows. 



Grey, reddish or light brown above, with large angular, 



Fig. 115. Agkistrodon rhodostoma (Boie). Side view of head. X 2> 



dark brown spots in pairs or alternating, the spots black-edged; 

 a dark median line on the back; lips yellow or pink, brown- 

 dotted; a broad brown, black-edged band, wavy below, from 

 the eye to the corner of the mouth, with a light band above. 

 Lower surface yellowish, uniform or with greyish-brown spots 

 or dots. Length of head and body 720 mm.; tail 90 mm. 

 Largest specimen known 900 mm. 



