NATURAL SCIENCES OP PHILADELPHIA. 371 



uent, broad behind. Postfrontals small, their anterior outline regularly 

 curved; prefrontals small, quadrangular. Rostral nearly rectangular, not ap- 

 pearing on the surface of tbe head. Postnasal high, its apex visible from above, 

 opposite the suture between the pre- and postfrontals. Superior labials seven, 

 eye resting on third and fourth. Inferior labials nine. Geneials two pair, the 

 anterior shorter. 



Total length 14 in. 11 lin. tail 4 in. 10 1. Gastrosteges 127, urosteges 85. 



Coloration. Above and below, reddish-brown, paler in the centres of the 

 gastrosteges. Every fourth scale of the fifth row on each side, pale, the adja- 

 cent scales on the fourth and sixth rows, generally darker. Top of the head 

 much lighter, varied anteriorly; palest behind the eye and above the labials. 

 The latter are dark with a few light spots. 



Habitat. Cocuyas de Veraguas, N. Grenada. Mr. R. W. Mitchell. 



Mus. Academy Natural Sciences. 



The colors of this species are quite similar to those of Tantilla reticulata 

 nob. from the same locality. Its physioguomie is very unprepossessing. 



SCOLECOPHIS FUMICEPS Cope. 



Head not distinct from the body. Scales in fifteen rows. Frontal plates 

 broad and short ; vertical broad, presenting an obtuse angle anteriorly, an acute 

 one posteriorly, its occipital suture longer than its superciliary. Occipitals 

 large, as long as postfrontals and vertical together. Prenasal large; postnasal 

 prolonged to the single preocular, excluding the loreal. Postoculars two. 

 Superior labials seven, third and fourth entering the orbit, seventh largest. 

 Temporals, two large and two small. Inferior labials six, fourth the largest. 

 Breadth of anterior geneials equal to half their length, which is greater than 

 that of the posterior pair. Gastrosteges 132 ; a divided anal ; urosteges 42. 



Total length 5 inches ; tail 1 in. 10 lin. 



Coloration. Above, uniform pale brown, shading into dirty white beneath. 

 The top of the head, including the oculars and temporals, and for four scales 

 back of the occipitals, blackish-brown. Rostral, prefrontals and upper labials, 

 pale brownish. 



Habitat. Probably Cuba. 



Mus. Comparative Zoology. Cambridge, Mass. 



Fam. ADENOMIDiE. 

 Opisthoylossa plalydactyla without maxillary teeth, with perfectly developed 

 ear, parotid glands, dilated apophyses of sacral vertebra, and palmate feet. 



Adenomus Cope. 

 Hylaeform. Head broad, short. Parotids above the shoulder, long and nar- 

 row ; skin rough. Vomerine teeth none. Tongue elongate, oval, almost 

 cylindrical anteriorly, posteriorly entire, and free for about two-fifths its length. 

 Tympanum indistinct. Fingers very slightly webbed, the palettes of moderate 

 size. A subgular vocal sac. 



A. EADIOFLAVUS Cope. 



Muzzle short, elevated; canthus rostralis concave. Nostril oval, lateral. 

 Eves very large, transverse diameter of the eyelids greater than that of the 

 ossa frontalia. Tympanum inconspicuous, surmounted by small tubercles. 

 Skin of the whole upper surface .uberculous, and especially that of the scapu- 

 lar protuberance, and a short lateral fold. No gular or pectoral fold ; tarsus 

 half the length of the tibia, which is but little longer than tbe fourth phalanx. 

 Two tubercles on the metatarsus, one on the metacarpus. First finger half the 

 length of the fourth. 



Coloration. Above, ground color, fulvous. The sides as far as the eye, a 

 spot above the anterior canthus of the latter, one upon each eyelid, a band be- 

 ginning upon the occiput and bifurcating between the parotids, and a large 

 chevron-shaped band upon the sacral and iliac regions, ferruginous or bay. A 



I860.] 



