300 BATRACHIA CAUDATA. 
arched, extending outwards beyond the choane, separated from the parasphenoid 
groups, which are more or less separated from each other and divergent behind. Black, 
sometimes with powdery yellowish patches, rarely with a reddish dorsal band. 
. 
3. Q. 
Totallength . . . . 2... . .).) 690 millim. 105 millim. 
Length oftail . . 2. 2. 2... ww. 45, 52 Cs, 
Spelerpes laticeps, Brocchi, Miss. Sc. Mex., Batr. p. 110, t. 18. fig. 1, from Vera 
Cruz (Sallé), does not seem to me distinct from &. leprosus. It has been distinguished 
on account of its parasphenoid teeth, which are in contact with each other; but this 
condition is closely approached by specimens which I have examined, and which 
cannot be held distinct from such as have the two groups of teeth somewhat more 
apart. 
Not less prublematical appear to me three other species, two of which are named by 
Brocchi in the same work, viz. Spelerpes rostratum from pine-forests of Totonicapam 
in Guatemala (p. 112) and Spelerpes sulcatum trom Mexico (p. 112, t. 20. fig. 2). The 
third is Spelerpes orizabensis, Blatchley, Proc. U.S. Nat. Mus. xvi. p. 38, taken on 
Mt. Orizaba at an altitude of 11,000 feet. 
6. Spelerpes bocourti, (Tab. LX XVI. fig. A.) 
? Spelerpes bocourti, Brocchi, Miss. Sc. Mex., Batr. p. 11], t. 18. fig. 2. 
Hab. *GuaTEMALA, pine-forests of Totonicapam (Bocourt); Costa Rica, La Palma 
(1600 metres) and Cariblanco (Biolley & Underwood). 
Body rather stout, with 12 costal grooves; the length of the head to the gular fold 
is contained three and a third or three and a half times in the distance of the latter 
from the vent. Head broad, not much longer than wide. ‘Tail rather compressed. 
Limbs moderately developed ; digits half-webbed. The series of palatine teeth extends 
outwards beyond the choaue; parasphenoid teeth confluent into a single group. 
Black, a whitish ring round the root of the tail; end of the tail and sometimes the 
extremity of the snout and toes whitish. 
Ad. @. Ad. @. Her. 
Totallength . . . . . . 190 millim. 176 millim. 94 millim. 
Lengthoftal. . . . . . 90) , 96s, 43, 
7. Spelerpes subpalmatus. 
Spelerpes subpalmatus, Bouleng. Ann. & Mag. N. H. 1896, xviii. p. 341. 
Hab. Costa Rica, La Palma (Underwood). 
Body moderately stout, with 12 costal grooves; the length of the head to the gular 
fold is one-third of the distance between the latter and the vent. ‘Tail cylindrical, not 
