. Bulletin - United States National Museum. Science. THE BATRACHIA OF NORTH AMERICA. 117 an oval, with produced aud rounded muzzle, wliicli projects beyond the lower jaw. The animal resembles a Plethodon rather than the species of Amblystoma, but its vomerine teeth and tongue have all the char- acters of the CJiondrotus microstomus. The vomerine teeth form a convex series, extending forwards to a point between the choante, where they are slightly interrupted on the middle line. The tongue is large, filling the floor of the mouth, and is extensively free at the sides only. The external nostrils


. Bulletin - United States National Museum. Science. THE BATRACHIA OF NORTH AMERICA. 117 an oval, with produced aud rounded muzzle, wliicli projects beyond the lower jaw. The animal resembles a Plethodon rather than the species of Amblystoma, but its vomerine teeth and tongue have all the char- acters of the CJiondrotus microstomus. The vomerine teeth form a convex series, extending forwards to a point between the choante, where they are slightly interrupted on the middle line. The tongue is large, filling the floor of the mouth, and is extensively free at the sides only. The external nostrils are nearly terminal and are rather near together, the space between them being equal to just half that between the bases of the eyelids and about three- fifths that between the choante. The width between the eyes behind is equal to the axial length from the same to the end of the muzzle. The width of the head enters the length to the groin seven times. The length from the muzzle to the axilla enters the distance from the latter to the groin 1| timen. The lateral digits are distinct and the median ones moderately elon- gate. Their lengths, beginning with the shortest, are: Fore-foot, 2, 5, 3, 4; hind foot, 1, 5, 2, 3, 4. The phalanges are: Fore-foot, 2, 2, 3, 2; hind foot, 2, 2, 3, 4, 2. No palmai or plantar tubercles. The skin is perfectly smooth, aud between the axilla and the groin it is marked by fourteen grooves. There are no dermal margins to the fingers or the tail. The cloacal orifice is a simple slit. There is a dis- tinct postgular fold. D ^ /n 'A\ 1 I )a\ 2 * 4 Q 5 6 7 Fig. 26. Lingucelapsus lepturus. Kat. size, except fig. 5. Measurements. M. Total leugtli. 11") Length from end of muzzle to base of tail 092 Length from end of muzzle to groin ., 0515 Length from end of muzzle to axilla 020 Length from end of muzzle to cauthus oris 0065 Length of fore-leg 013 Length of fore-foot 0055 Length of hind leg 016 Length of hind foot 0075 Width of head 0075 Depth of tail


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Keywords: ., bookauthorun, bookcentury1800, bookdecade1870, booksubjectscience