106 



BULLETIN 160, UNITED STATES NATIONAL MUSEUM 



of these species may possibly show that E. dunnii is merely a variant 

 of the widely distributed E. rhodopis. 



Doctor Dunn writes to me from London as follows : 



There are specimens in the British Museum which fit the description of E. 

 dunnii more closely than any other. Ten specimens from Xometla (1903. 9. 30. 

 238-247, Brit. Mus.) and four from Ste. Barbara in Vera Cruz (1903. 9. 30. 

 248-251, Brit. Mus.) are referred to this species. These are differently preserved, 

 but I think that they are the same. Tympanum black; considerable black around 

 eye and on lip in spots. Glandular ridges do not show up. Apparently a 

 W-shaped scapular fold. In these specimens the converging dorsal dermal ridges 

 are lacking. 



Specimens examined. — Two, as follows: 



Eleutherodactylus dunnii 



> Type. 



ELEUTHERODACTYLUS LATICEPS (Duni6r«) 



Broad-headed Cave Frog 



1853. Hylodes laticeps Dumeril, Ann. Sci. Nat., Paris, ser. 3, Zoology, vol. 19, 

 p. 178. — Dumeril and Bibron, 1854, Erpetologie g^n^rale, vol. 9, p. 408; 

 Atlas, pi. 99, figs. 1-4. 



Type locality. — Yucatan, Mexico. 



Range. — Limits of range as yet undetermined; known to occur in 

 Yucatan, Mexico. 



Remarks. — The unique type (M.H.N. P. No. 509, parchment label 

 No. 1547) of this species was presented to the Paris Museum by 

 Arthur Morelet. Its natural habitat and the exact type locality are 

 unknown. A rather careful search of the literature revealed no 

 mention of the finding of additional specimens. This species differs 

 from Eleutherodactylus augusti in having a tarsal fold, a post- tympanic 

 dorsal dermal fold, sides marbled with brown specks, inner metatarsal 

 tubercle noticeably larger than the outer, and a relatively longer 

 fourth toe. The following notes were made on the type specimen: 



A distinct sharp-edged tarsal fold; tarsal-metatarsal joint to the 

 tip of fourth toe, 36 mm. ; a large protuberant inner and a very small 

 outer metatarsal tubercle ; subarticular tubercles at ends of metapodials 

 fairly large; a few small supernumerary tubercles on metatarsals; toes 

 webbed at base ; the hind limb being carried forward along the body, 

 the tibio-tarsal joint reaches between eye and nostril; first finger 

 exceeds second by length of its apical disk ; large subarticular tubercles 



