. Bulletin - United States National Museum. Science. THE BATRACHIA OF NORTH AMERICA. 115 tus. Tliey are the ouly Amblystomidas with cyliudric tail. They differ as follows: I. Folds of the tongue radiating from a longitudinal farrow ; vomerine teeth not ex- tending external to internal nares ; tail rounded in section. a Cornua of otoglossal cartilage turned forwards; muzzle very short; jaws equal; legs short, separated from each other, when appressed, by four inter- spaces ; blackish, with light cross-bands on head, body, and tail. L. annulalus. aa-Cornan of otoglossal cartilage turned backward
. Bulletin - United States National Museum. Science. THE BATRACHIA OF NORTH AMERICA. 115 tus. Tliey are the ouly Amblystomidas with cyliudric tail. They differ as follows: I. Folds of the tongue radiating from a longitudinal farrow ; vomerine teeth not ex- tending external to internal nares ; tail rounded in section. a Cornua of otoglossal cartilage turned forwards; muzzle very short; jaws equal; legs short, separated from each other, when appressed, by four inter- spaces ; blackish, with light cross-bands on head, body, and tail. L. annulalus. aa-Cornan of otoglossal cartilage turned backwards ; muzzle elongate, project- ing beyond chin ; legs longer; separated, when appressed, by two intercostal spaces; grayish-brown, with numerous pale transverse lines, which forin a reticulate pattern across the tail L. leptwus. LINGU^LAPSUS ANNULATUS Cope.* American Naturalist, 1887, p. 88. Amhlystoma annulatum Cope, Proc. Amer. Philos. Soc, 1887, p. 525. This species resembles the Ghondrotus microstomus rather than the G. cingulatus or the L. lepturus. However, it approaches the last-named species in the form and length of its tail, and exceeds that and all the other species of the famil^^ in the length of that part of the body. The muzzle is very short, and the head is not distinguished from the neck. The legs are short, and when appressed to the sides are sepa- rated by a space of three and parts of two other intercostal spaces, equal to four spaces. The tail is in section cyliudric at base, and widely oval to near the extremity, where it is more narrowly oval. It is not an- gulate, and has no dermal margin on the middle line above or below. Its length exceeds that of the head and body by the length of the anterior foot, and it may have been longer, as the extremity is injured. The head Is short, and the width enters the length to the groin six and a quarter times. The front is convex to the upper lip or profile, and transversely between the orbits. The parietal region is ve
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