304 BATRACHIA CAUDATA. 
14. Spelerpes lineolus. 
Spelerpes lineolus, Cope, Proc. Ac. N. Sc. Philad. 1865, p. 197; Bouleng. Batr. Grad. p. 74. 
Opheobatrachus lineolus, Cope, 1. c. 1869, p. 101. 
Hab. Mexico, Orizaba (Sumichrast). 
Habit very slender, the cylindrical tail being about twice as long as the body ; 
body with 13 or 14 costal grooves; head small, longer than wide. Limbs very weak, 
with the digits reduced to rudiments. Parasphenoid teeth in two long groups 
confluent in front, divergent behind. Black. 
Totallength . . . . . . ee. eee ee 120 millim. 
Length of tal. 2. 2. 2. 2... ww eee ee 8H, 
15. Spelerpes uniformis. 
Gidipina uniformis, Keferstein, Arch. f. Naturg. 1868, p. 299; Nachricht. Ges. Wiss. Gétting. 
1868, p. 331; Giinth. Zool. Record for 1868, p. 131. 
Ophiobatrachus vermicularis, Gray, Ann. & Mag. N. H. 1868, ii. p. 298. 
Opheobatrachus vermicularis, Cope, Proc. Ac. N. Sc. Philad. 1869, p. 102; Journ. Ac. N. Se. 
Philad. viii. p. 96 (1876). 
Spelerpes uniformis, Bouleng. Batr. Grad. p. 75. 
Spelerpes vermicularis, Brocchi, Miss. Sc. Mex., Batr. p. 118, t. 20. fig. 1. 
Hab. Mrxico, Vera Cruz (Dugés); Costa Rica, La Palma, alt. 1600 met. (Biolley), 
Bebedero and Irazu (Underwood). 
Habit extremely slender, worm-shaped, the cylindrical tail being more than twice 
as long as the body. Body with 18 or 19 costal grooves; head much longer than 
wide. Limbs very weak, with the digits reduced to rudiments. Parasphenoid teeth 
forming an undivided elongate group. Black, lighter below. 
Q. 
Total length woe ee ee heh). «178 millim. 173 millim. 
Length oftaill . . . . . . . . . 124), 115, 
THORIUS. 
Thorius, Cope, Am. Nat. 1869, p. 222. 
Palatine teeth in a transverse series; parasphenoid teeth present. ‘Tongue free all 
round, supported by a central pedicel. ‘oes five. ‘Tail cylindrical, slightly com- 
pressed towards its end. Nostrils very large. 
1. Thorius pennatulus. 
Thorius pennatulus, Cope, Am. Nat. 1869, p. 222; Proc. Ac. N. Sc. Philad. 1869, p. 111; 
Bouleng. Batr. Grad. p. 79, t. 3. fig. 2 (head). 
Hab. Mexico, Orizaba (Sumichrast). 
