252 CYSTIGNATHID A, 
17. BORBOROCETES. 
Cystignathus, sp., Dum. § Bibr, viii. p. 407; Giinth. Cat. p. 31. 
Borboroccetes, Bell, Zool. Beagle, Rept. p. 80; Cope, Nat. Hist. Rev. 
1865, p. 115. 
Eusophus, Cope, /. c., and Journ. Ac. Philad. (2) vi. 1866, p. 95. 
Borboroccetes, sp., Cope, Journ. Ac. Philad. (2) vi. p. 94, 
Cacotus, Giinth. Proc. Zool. Soc, 1868, p. 482. 
Phrynopus, Peters, Mon. Berl. Ac. 1875, p. 416. 
Oreobates, Espada, Ann, Soc, Esp. i. p. 86. 
Pupil horizontal. Tongue subcircular, entire or slightly nicked, 
and free behind. Vomerine teeth. Tympanum more or less distinct 
or absent. Fingers free ; toes free or nearly so, the tips not dilated. 
Outer metatarsals united. Omosternum cartilaginous; sternum a 
cartilaginous plate. Terminal phalanges simple or slightly 
bifurcate. 
W. 8. America, 
Synopsis of the Species. 
I. A tympanum. 
1. Vomerine teeth between the choane. 
Subarticular tubercles very strong ...... 1. nedosus, p. 253. 
Subarticular tubercles moderate ; vomerine 
teeth in two oblique series commencing 
on a level with the hinder edge of the 
choane ; toes not fringed ............ 2. roseus, p. 253. 
Subarticular tubercles moderate; toes 
PATO seers ica he rctese eases tote te et ioe ail 3. lidalgoi, p. 253. 
Subarticular tubercles small; fingers and 
BCE SIENGON OF ot otk sat Seat Rieae ee Or 4, teniatus, p. 254. 
2. Vomerine teeth behind the choane. 
First finger not longer than second ; nostril 
nearer the tip of the snout than the eye. 5. grayi, p. 254. 
First finger not longer than second ; nostril 
equally distant from the eye and the tip 
OL PHC SNOUE sehr es ease ofa sae eee 6, bibroni, p. 255, 
First finger longer than second; nostril 
much nearer the tip of the snout than 
ERE OVO" (oie ean nis 3 ues eee 7. quiwensis, p. 255. 
Habit’ Very Stout. seo sce te orsae aerate ae S. peruanus, p. 255, 
II. No tympanum. 
Snout as longas the greatest orbital diameter. 9. maculatus, p. 256. 
A conical tubercle on the tibio-tarsal 
émtaculation: 2.2. 2 \.i. ee eee ae 10, calearatus, p. 256. 
Snout shorter than the greatest orbital 
diameter...... Pas See ee woe. LL. coppingeri, p. 257, 
