NATURAL SCIENCES OP PHILADELPHIA. 



a nail, the third finger the longest, the first very short, almost rudimentary, 

 the second and fifth of nearly equal length ; the first two quite short, the fourth 

 the longest; fingers and toes not denticulated upon the edges, the inferior surface 

 covered with transverse scales Color and dimensions as above. 



Habitat. Ousima, Japan. Two specimens, one from Loo-Choo. 



Gen. remarks. Although the two animals resemble each other so much 

 in their general form, the arrangement of the plates upon the head is quite 

 different. In Lygosoma laterale the scales are quite smooth. 



OP HID I A. 



Fam. Typhlopid.-e. 



Ophthalmidicm D. & B. 



Char. A narrow ro3tral, bent upon the snout; a supra-ocular ; a pair of 

 preoculars ; a pair of nasals ; a pair of oculars, with the eye distinct at the 

 upper part ; a pair of fronto-nasals ; a pair of post-oculars ; an anterior frontal ; 

 a frontal; a pair of parietals ; an interparietal; eyes latero-superior ; body 

 covered with smooth hexagonal scales ; tail very short. 



Ophthalmidium tenue nob. 



Spec. char. Color uniformly brown above, lighter below ; 10 rowsof subcaudal 

 scales; 282 horizontal rows, 20 longitudinal rows, 4 pair of supralabials ; 

 nostrils very small, in the suture between the nasal and fronto-nasal plates, 

 beneath the extremity of the snout. 



Dimensions. Length of tail l\ lines; of head and body 5 inches. Total 

 length 5 inches, J line. 



Habitat. Hong-Kong, China. Three specimens. 



Fam. Aglyphodontes D. & B. 



Gen. Elaphis Aldrovandi. 



Char. Nostrils between two plates ; a frenal ; two antoculars, the inferior 

 small, intercalated between the third and fourth supra-labials ; the one resting 

 on the fourth and fifth ; two internasals, smaller than the prefrontals : a frontal 

 longer than broad; three temporals on each side ; scales elongated, lanceolate, 

 weakly keeled ; tail of moderate length, scutes bifid. 



Elaphis bilineatus nob. 



Spec. char. Nine rows of scales, the dorsal ones carinate ; color black, as 

 in Coryphodon co n s tr ic tor, but with two white lines on each side of the 

 neck, extending some distance along the body. Total length 3 feet. 4 inches. 



Description. This species, in its general conformation, has a marked resem- 

 blance to Coryphodon constrictor (Bascanion B. & G.), the pupil is round. 

 the supraciliaries projecting very slightly, the superior antocular much ex- 

 cavated ; of the supralabials the sixth and seventh are the largest ; the frenal 

 is not elongated, but rhomboidal, with its posterior and inferior angle prolonged ; 

 of the two anterior temporal plates the superior is the more narrow and smaller ; 

 the frontal plate is pentangular, less excavated laterally than in Coryphodon 

 constrictor; the three inferior rows on each side are carinated, the carinte 

 not extending the whole length of the scale ; the pra?anal scute is bifid ; 

 abdomen angular; posterior teeth longer than the anterior. Ab. scut. 193 : 

 subcaud. 1 bifid paaeanal; 76 subcaud. 



Habitat. Volcano Bay. Jesso. One specimen, caught by Dr. Morrow, May 

 30th, 1854. 



Gen. Leptophididm nob. 



Char. A rostral, two internasals much smaller than the prefrontals ; frontal 

 longer than broad, presenting an acute angle posteriorly ; occipitals large : 



I860.] 



