1887 ] ^OO [Garman. 



the allied species from St. Kitts, Saba and Nevis. They form a variety 

 of the preceding. 



Alsophis sibonius Cope. 



Dominica. Rows 19 ; pores two ; ventrals 198. 



This specimen disagrees in several particulars from the original descrip- 

 tion. The agreements, however, are so exact, when occurring, that tlie 

 variations are most likely to prove individual. The temporals are 1-1-2-3, 

 the anterior on each side being divided vertically in such manner as to 

 leave a short piece in contact with the orbitals; the seventh labial is large ; 

 each parietal has five or six scales in contact with its outer border. In 

 color it is almost black. A black band waves from side to side on the 

 back, its concavities being marked by triangular spots of white. A series 

 of black spots on the middle of the flank, much fused ; a series of smaller 

 ones on the outer edges of the ventrals and on the first row of scales. 

 Forward the ventral surface is yellow with black specks ; behind the 

 middle the white disappears on back and belly in a uniform black. 



Alsophis melanichnus Cope. 



Bayamon, Porto Eico. Rows 17; pores two ; ventrals 169, 170; sub- 

 caudals 125, 129; loreal pentagonal ; lower postorbital very narrow, about 

 one-third as large as the upper ; temporals 1-2-3. ^ The narrowness of tlie 

 lower postorbital is a good distinguishing character. On young specimens 

 the dark-bordered scales are distributed in such way as to form irregular 

 transverse bands, more indistinct in larger ones. 



Alsophis pulcher, sp. n. 



Testigos island. Rows 17 ; two pores ; ventrals 190; anal bifid. Head 

 distinct, broad behind ; body slightly compressed ; tail mutilated. Labials 

 nine, fourth, fifth and sixth in the orbit, eighth largest ; lower labials 

 eleven, sixth largest. Loreal low, upper edge horizontal. One anteorbi- 

 tal ; two postorbitals. Snout rounded, rostral, internasals, and prefrontals 

 convex. Prefrontals bent down to meet the loreal. Loreal region con- 

 cave. Temporals irregular 2-2-2. Frontal broad and truncate anteriorly, 

 narrow and rounded behind. 



lirownish-yellow, darker in front, with a median black edged band of 

 yellowisii-brown on the back, five scales and two halves in width. At 

 each side of this there is a yellow band, one scale and two half scales in 

 width, margined by a dark streak. On the flank the yellow band is mar- 

 gined by a dark streak occupying half of each of the second and third 

 rows. Each ventral is marked on its outer-anterior edge by a black spot, 

 which forms a zigzag line along the edge of the abdomen. Belly yellow ; 

 chin and throat blotched with dark brown. A dark streak from the nos- 

 tril through the eye. Toward the neck the amount of black on the scales 

 is much greater and the dorsal band appears as if composed of three. 



