NATURAL SCIENCES OP PHILADELPHIA. 45 



Sciences, Pbilada.; Boston Nat. Hist. Soc. ; Compar. Zoology, Cambridge; 

 Smithsonian, Washington. 



The palmation of the ringers in this species varies between bare existence 

 and an extent equal to one-fourth the length of the digits. The series of 

 vomerine teeth are either arched or straight. As the peculiarities of the Hyp- 

 siboas dominicensis of Tschudi, as defined by Dumeril and Bibron, are exhibited 

 within this range, I am induced to believe that it is but a nominal species. The 

 dominicensis of Gunther, possessing a more extensive palmation of the anterior 

 digits, is so far similar to the o vat us from the same island. I agree with 

 that author in assigning the same name to the Jamaican animal, which is, 

 according to him, the frog called Hyla brunnea by Mr. Gosse. The specimens 

 labelled erroneously in Mus. Paris as having been brought from Cape North, in 

 Norway, under the name Hyla septentrionalis, belong to the present species 

 according to the " Erpetologie Generale." It is the oldest name, but, being but 

 a museum label, must be passed over. 



Specimens from New Providence are of large size and with golden and oliva- 

 ceous shades. 



T. w r i g h t i i Cope, sp. no v. 



Head short, broadly rounded ; length from end of muzzle to posterior border 

 of casque less than breadth of mouth opposite middle of orbits. This poste- 

 rior border extends from tympanum to tympanum, and i3 not emarginate. Fron- 

 tal region very broad, concave ; muzzle oblique in profile. Canthus rostralis 

 much within maxillary border, well marked, slightly concave, angle of conver- 

 gence nearly right, with a weak descending ridge nearer orbit than nares. 

 Eyes not very prominent, twice extent of tympanum, which equals discs of 

 anterior digits. Loreal region concave. Vomerine series not short, transverse; 

 inner nares not much larger than ostia pharyngea. Tongue very broad, slightly 

 emarginate. Anterior digits scarcely palmate. Heel reaching beyond end of 

 muzzle ; tibia measures a little more than twice from nostril to posterior bor- 

 der of casque. Skin of upper surfaces very sparsely tuberculous. 



Length in a 9 , from end of muzzle to posterior border of casque, 2 // 5 /// . 

 Least breadth of frontal region \" 2 /// . Length from posterior border of 

 casque to vent 5" V" ; of anterior extremity 5" 5'"; of posterior extremity 

 13" V". 



Above purplish brown, beneath yellowish ; gular region brown-shaded ; 

 sides and interior faces of femur and tibia marbled, and external faces of limbs 

 banded with brown. 



Habitat. District of Guantanamo, Southeastern Cuba. Discovered by Chas. 

 Wright, to whom it is dedicated. Mus. Smithsonian, (No. 5174.) 



T. scutigerus Cope, sp. nov. 



Head more elongate ; maxillary outline regularly rounded or slightly trun- 

 cate. Length from end of muzzle to posterior border of casque less than dis- 

 tance across the mouth opposite middle of orbits. Profile from occiput to 

 muzzle gently arched, the latter not depressed, vertical (truncate) in profile. 

 Canthus rostralis elevated, straight or convex just interior to orbit, converging 

 at an acute angle, without branch-ridge. Loreal region nearly vertical, with a 

 delicate groove between two patches of ossification. Cephalic dermo-ossifica- 

 tion with a distinctly-defined cordate outline posteriorly ; separable more or 

 less distinctly into two parietals, a pentagonal frontal and two elongate conver- 

 gent nasal plates; where the latter are in contact with the parietals (on the 

 superciliary margin) there is often an emargination. Eyes not prominent ver- 

 tically, twice the extent of tympanum. Internal nares very large. Vomerine* 

 teeth in two short, widely-separated, straight or slightly curved series, which 

 converge anteriorly between the posterior margin of nares. Tongue scarcely 

 emarginate. Anterior digits one-fourth to one-third webbed. Heel scarcely 

 reaching beyond orbit. Skin very sparsely tuberculous or smooth. 



1863.] 



