5. NECTES. oan 
tending in a nearly straight line to the nares, with a slight thickening 
opposite the front of the orbit; a low, narrow postorbital ridge ; 
no trace of tympanum. Digits of hands and feet. enclosed in the 
skin, leaving the longest median digit projecting; inner digits of 
hands and feet rudimentary ; no metatarsal tubercles ; no tarsal fold. 
Hind limbs short. Skin with minute tubercles; parotoids very 
small, subrotund. General colour black, above a little lighter, with 
a few darker spots on each side; sometimes a brown median dorsal 
band. 
Costa Rica. 
5. NECTES. 
Pseudobufo, Tschudi, Batr. p. 87. 
Nectes, Cope, Nat. Hist. Rev. 1865, p. 103. 
Pupil horizontal. Tongue elliptical, entire and free behind. 
Palate smooth. Nostrils directed upwards. Tympanum distinct. 
Fingers free ; toes webbed, the tips not dilated. Outer metatarsals 
united. No omosternum ; sternum a cartilaginous plate, ossified 
along the centre. Diapophyses of sacral vertebra rather strongly 
dilated. Terminal phalanges simple. 
Jaya. 
1. Nectes subasper. 
Pseudobufo subasper, Tschudi, 1. c. 
Nectes subasper, Cope, 1. c. 
Lateral view of head. Upper view of head. 
Head rather small; snout prominent, obliquely truncate; loreal 
regions nearly vertical; nostrils small, tear-shaped, close together 
near the end of the snout, directed upwards; upper eyelid rather 
narrow; interorbital space broad; tympanum perfectly distinct, 
three fourths the diameter of the eye. Fingers slender, pointed, 
first shorter than second; toes rather long, pointed, united to the 
tips by a very broad membrane; no subarticular tubercles; two 
very indistinct, flat metatarsal tubercles; a rather indistinct fold 
along the inner edge of the tarsus. The hind lhmb being carried 
forwards along the body, the tarso-metatarsal articulation reaches 
