1891.] BATRACHIANS, AND FISHES FROM THE WEST INDIES. 355 



4. Anolis alligator, D. & B., var. vincenti, Garm. 

 Anolis vincentii, Garm. Bull. Essex Inst. xix. 1887, p. 46. 



5. Anolis richardii, D. & B. 

 Anolis griseus, Garm. 1. c. p. 36. 



6. Iguana tuberculata, Laur. 



/. Ameiva surinamensis, Laur. 

 Anieiva aquilina, Garm. 1. c. p. 3. 



8. Mabuia aurata, Schn. 

 Mabuia cenea, Gray, Garman. 



Two specimens. These have the supranasals separate, as described 

 by Garman ; but these shields are in contact with each other in 

 the type specimen of Ji. t^nea from St. Vincent. The keels on the 

 scales almost obsolete. 



9. XiPHOSOMA hortulanum, L. 



10. Coluber boddaertii, Sentz. 

 Ventrals 192, 200; subcaudals 92, 120. 



11. Herpetodryas carinatus, L., var. vincenti. 



More slender than the type. Ventrals 16y, 166; subcaudals 

 155, 148. Three postoculars ; temporals 1+2; three labials 

 entering the eye. Blackish brown or black above ; upper lip and 

 gular region yellowish ; belly plumbeous or blackish. 



Continental specimens of this species have usually 145-160 

 ventrals, 125-140 subcaudals, and two postoculars. However, as 

 we have in the British Museum a specimen from Venezuela with 

 164 ventrals and 171 subcaudals which is otherwise not separable 

 from H. carinatus, I must regard the St. Vincent specimens as 

 referable to a variety rather than to a distinct species. Specimens 

 from Guadeloupe and Trinidad do not differ from the typical 

 H. carinatus. 



Five species of Herpetodryas may be distinguished, as shown by 

 the following synopsis : — 



I. Scales in 12 rows ; anal usually divided. 



Four or more rows of scales keeled 1. sexcarinatus, Wagl. 



Scales smooth, or only the two middle rows 



keeled 2. carinatus, L. 



II. Scales in 10 rows. 



Anal entire ; scales smooth, or only the two middle 



rows keeled 3. fuscus, L. 



Anal divided; scales smooth 4. melas, Co-pe. 



Anal divided ; scales keeled 5. grandisquamis, Ptrs. 



12. Hylodes martinicensis, Tsch. 



13- Leptodactylus caliginosus, Gir. 

 Leptodactylus validus, Garm. 1. c p. 14, 



