Cope.] ^74 fjune 20, 



VI. Domisica, Ober. 



As no study of the herpetology of this island has been made, the follow- 

 ing list of five species partially supplies a deficiency in our knowledge. 



1. Mabuia cepedei Gray. 



2. Xiphosurus oculatus, sp. nov. 



Abdominal scales smooth, those of sides and back minute : two median 

 dorsal rows a little larger, keeled, and elevated on a moderate simple dermal 

 fold which extends to the head. Superciliary scales separated by one or 

 two rows of scales, and widely removed by scales from the small occipital. 

 Muzzle rather long, flat above; ridges not prominent, covered with large 

 scales, and separated by a shallow concavity, which contains in front, four 

 rows of smaller smooth scales. Six or seven loreal rows; three large in- 

 fralabials, the first smaller than each symphyseal. Supraorbitals surrounded 

 with granules, consisting of three inner scales the largest, five in the inner 

 row smaller, and six in the external row the least, all nearly smooth. Oc- 

 cipital concavity not profound or sharply defined posteriorly. Scales. of 

 arm and posterior leg keeled. Caudal spines well developed in the male. 



Color above br.ownish-ash, with numerous white spots which sometimes 

 form vertical lateral bands, and a white band extending from above the 

 axilla to the middle of the side or beyond. Above this band, on the ante- 

 rior half of the side are two round black spots, each of which has a white 

 spot in the center. A white band from upper lip to side of nape ; lip brown 

 spotted, inferior surfaces dirty white, face yellow posteriorly. Tail uniform. 



Total length, .185 ; of head and body, .072 ; of head to angle of mandible, 

 .021 ; width at latter point, .008 ; length of fore limb .032 ; of hinder limb, 

 .055 ; of posterior foot, .025. 



The animal which I suppose to be the male, generally has one row of 

 scales between the superciliaries, while the female has two, and has no 

 caudal crest. The color differs in being brown, without the lateral white 

 band or black eye-spots. The white spots form vertical series on the sides. 

 It is possible that this is a different species, but it is in general identical 

 with what the female of the X. oculatus should be. 



This species differs from its nearest ally, the X. eristatellus, in having the 

 superciliary plates separated on the middle line, by the shallow occipital 

 depression, the longer muzzle, and in coloration. 



Evidently abundant on the island. Nos. 10139-48, 10150-1, 10153. 



3. Aporophis* julue sp. nov. 



Resembles the Opheomorphus meleagris Shaw (Liophis merremii D. and 

 B.), but has the long tail of the genus Aporophis, this member entering the 

 total length 3.4 times. Appropriately, the number of the urosteges is con- 

 siderably in excess of that found in the longest tailed varieties of O. meleag- 

 ris, where, according to Dumeril and Bibron, they do not exceed 63. They 

 here number 82, and the gastrosteges are 158. 



The scales are in seventeen rows, and are rather wide, and are as in 

 other species of Aporophis, porelcss ; nevertheless there are a few on the 



•Cope, Proceed. Araer, Pliilos. Soc. 1877, p. IS. Lygophis olim. 



