HERPETOLOGY OF PORTO RICO. 



591 



ELEUTHERODACTYLUS ANTILLENSIS " ( Reinhardt and Luetken. ) 



1863. Ilylodcx aiitillciisix Reinhardt and Luetkkx, Yid. Meddel. Naturh. Foren. 

 (Copenhagen), 1862, p. 209; author's separate, p. ;>7 (type Ideality, St. Thomas; 

 type in Mu8. C'openh.). 



This species has l)ecn placcnl as a synonym of K (airicuhifu.s hy 

 I>c)iileni>'ei% l)ut the two are very different indeed. If individuals of 

 the same size arc phiced side l)y side the diti'ercnce in the size of tlie 

 leg's and feet are pjirticularly striking, they being much shorter in 

 E. anttlh nxls. The fore lim])s are especially minute, so much so that 

 the length from axilla to tip of longest linger is about one-half the 

 length from tip of snout to vent, while in E. <iur/ci(lafi(s the corres- 

 ponding length of arm and hand greatly exceeds, often ])y 83 per cent, 

 half the total length of head and body. As a rule, the heel and elbow 

 of the adpressed limbs barely touch in II. antille)isi,s^ while in E. 



Fkjs. 20-24.— ELEUTHERODACTYLUS ANTiLLENSis. 2 X natural size. 20, side of head; 21, top of head; 

 22, inside of mouth; 23, underside of fore foot; 24, underside of hind foot. No. 27075, II.S.N.M. 



mu'lculatMS they overlap considerably. In the latter the heels also 

 overlap when the bent bind limbs are placed vertically to the axis of 

 the body — while in this position the heels of E. antlllensis just meet. 

 Notwithstanding the enormous variation in the coloration of E. ax/'lc- 

 ulatus, there seems to be some difference in the average color of lioth 

 species. The larger E. antillensis ol)tained in Vieques are nearly 

 uniformh^ pale above, and are therefore closely approximated by 

 the pale specimens of E. auricidahis which we collected in the white 

 limestone hills near Ponce (Nos. 27314-17), ])ut all the young ones 

 were "dull grayish brown with regular dusky longitudinal markings," 

 thus presenting none of the peculiar patterns so characteristic of the 

 young E. auricidatvs and described above under the latter species. 

 Descrijptio7i.—\J.^.^M. No. 27075, Isabella Segunda, Vieques 



"■Antillensis: of, or belonging to, the Antilles. 



