436 PROCEEDINGS OF THE ACADEMY OF [1894. 



Liocephalus sp. 



"A distinct Liocephalus, probably L. schreibersii Gray, was 

 plentiful on Great Inagua, but the specimens have been mislaid. It 

 is a rather smaller, more active soecies which carries the tail elevated 

 but not curled." 



TIngualia cana Cope. 



On comparison of this species with others of the genus I have 

 occasion to reassert the distinctness of the U. Indiana Cope from the 

 U. macxilata with which it is united by Boulenger in the Catalogue 

 of Snakes in the British Museum, Vol. I. In the original descrip- 

 tion (Proceed. Amer. Philos. Soc, 1879, p. 273), the statement is 

 made that the scales are in twenty-seven longitudinal rows, which 

 they are at some points ; but at the stoutest part of the body they 

 are in twenty-nine rows. In U. maculata they never exceed 25 rows, 

 and are usually 23. There are no interparietal plates ; these are 

 always present in the TJ. maculata. 



In the genus Ungualia the anal claws are of irregular occurrence. 

 In seven specimens before me they are present in only three. The 

 same is true of the genus Charina, also usually regarded as peropo- 

 dous. In two specimens before me they are wanting. 



Amiva leucomelas sp. nov. Plate XII, fig. 8. 



Ten rows of abdominal scales. Caudal scales oblique, diverging 

 backward and outward on each side of the median series, keeled, 

 the keels parallel to the middle line. Nostril within the border of 

 the internasal plate. Nasal triangular, small ; one very large loreal 

 plate; one preocular plate descending to the fourth superior labial; 

 four suborbitals in contact with the labials except the fourth. Six 

 narrow superciliaries ; four supraorbitals; frontal not transversely 

 divided. Two parietals on each side of the interparietal, which they 

 do not quite equal in length, while each is about equal in size to the 

 rather elongate interparietal. Two rows of small, smooth postparie- 

 tals. 'Gular scales nearly uniform; some larger ones at the middle 

 of the mesoptychium. Dorsal scales coarsely granular, round. 



Three rows of plates on the forearm, the external much the widest; 

 one row on the humerus with a much smaller row on each side of it; 

 the former not continuous with the large row of the forearm. Three 

 large and a few small preaual plates, which are continuous with the 



