95. LEPTOCALAMU9. 249 



4. Prosymna meleagris. 



Calamaria meleagris, Reinh. Vid. Selsk. Afhandl. x. 1843, p. 238, 



pi. i. figs. 4-0. 

 Prosymna meleagris, Gray, Cat. p. 80 (1849); Jan, Arch. Zool. 



At'tat. Phys. ii. 1862, p. 65. 

 Teinnorhynchus meleagris, Peters, Hon. Berl. Ac. 1875, p. 198. 



Rostral very large, with angular horizontal edge ; a single inter- 

 nasal and a single praefrontal ; frontal at least half the width of the 

 head, longer than the parietals ; loreal much longer than deep ; one 

 pree- and one postocular ; temporals 1 + 2 ; five upper labials, 

 second and third entering the eye ; only one pair of well-developed 

 chin-shields. Scales smooth, in 15 rows. Ventrals 140-170 ; anal 

 entire ; subcaudals 22-34. Black above each scale with a whitish 

 terminal dot ; uniform yellowish white inferiorly. 



Total length 270 millim. ; tail 40. 



West Africa. 



a. 3 (V. 140 ; C. 33). Lagos. Dr. J. G. Fischer. 



6. cJ (V. 154 ; C. 33). W. Africa. 



5. Prosymna jani. 



Prosymna janii, Bianconi, Mem. Ace. Bologna, (2) i. 1862, p. 470, 

 pi. i. ; Jan, Arch. Zool. Anat. Phys. ii. 1862, p. 56, and Icon. Gen. 

 48, pi. ii. fig. 1 (.1876) ; Peters, Reise n. Mossamb. iii. p. 106 (1882). 



Upper head-shields as in P. meleagris ; two prae- and two or three 

 postoculars ; temporals 1 + 2 ; six upper lahials, third and fourth 

 entering the eye. Scales keeled, in 17 rows. Ventrals 117; anal 

 entire ; subcaudals 32. Pale reddish brown above ; the greater part of 

 the upper surface of the head and nape black, leaving a pale spoton 

 each supraocular and a cordiform one on the middle of the nape 

 a black cross bar on the neck, followed by a double series of bla ; 

 spots along the anterior two thirds of the back ; yellowish wb c ^ 

 inferiorly. 



Total length 180 millim. ; tail 32. 



Inhambane, Mozambique. 



95. LEPTOCALAMUS. 



Leptocalamus, Giinth. Ann. $ Mag. N. H. (4) ix. 1872, p. 16. 

 Enulius (non Cope), Bocourt, Miss. Sc. Mex., Rept. p. 536 (1883). 



Maxillary very short, not extending forwards beyond the anterior 

 extremity of the palatines, with 4 or 5 small teeth, followed, after 

 an interspace, by a very large, compressed, blade-like fang ; man- 

 dibular teeth small, equal : teeth on palatines and pterygoids few. 

 Head not or but slightly distinct from neck ; snout depressed, strongly 

 projecting ; eye small, with round pupil ; nostril between two nasals ; 

 loreal (or loreal and prsofrontal) entering the eye. Body cylindrical, 



