1893.] NATURAL SCIENCES OF PHILADELPHIA. 4'!.") 



Bothrops lanceolatus (Merrem). 



Two specimens from Martinique, (O'Reilly, coll. ) 



(a) 25 rows of scales; 7 upper and 9 lower labials; ventrals, 

 199; subcaudals, 69 pairs. Total length, 559 mm. (tail 101). 



(b) 2.) rows of scales ; 7 upper and 9 lower labials; ventrals, 

 200; subcaudals, 69 pairs. Total length, 610 mm. (tail 114). 



Scales narrower than in atro.r, keel less marked and running to the 

 tip of the scale. 



Color, gray above with pale brown rbomboidal blotches on the 

 back and small spots on the sides, both very irregular. Abdomen 

 yellow, unspotted. 



Bothrops jararaca (Neuwied. ) 



One specimen from Brazil, (O'Reilly, coll.) — 27 rows of scales; 

 7 upper and 9 lower labials; ventrals, 206; subcaudals, 57 pairs. 

 Total length, 635 mm. (tail 101). 



Body scale much as in lanceolatus. Those on the muzzle propor- 

 tionately rather larger. Angle of canthus less sharp. 



Color, sage green, with dark transverse bands, widening on the 

 sides. Interspaces along the back are considerably longer than the 

 bands. An occasional dark spot in the interspaces on the dorsal 

 line. Abdomen yellow, unspotted. 



The specimens of Bothrops given above are identified with some 

 hesitation. In fact the difficulty of finding any marked, substantial 

 characters, distinguishing these three species, suggests a doubt of 

 their right to full specific rank. In case they should be regarded 

 as subspecies of one widely ranging form, B. atro.r, (Linn) would 

 have priority. 



