158 . OPHIDIA. 
twice as long as broad, hexagonal, with an obtuse angle in front, and with an acute one 
behind. Occipitals tapering behind, somewhat longer than vertical. The single nasal 
is elongate, touching the preorbital, which is not raised to the upper surface of the 
head ; one postorbital. Seven upper labials, the third and fourth of which enter the 
orbit; the fifth upper labial is in immediate contact with the occipital, separating the 
anterior temporal from the postorbital.. There is a large, elongate, posterior, temporal 
shield (probably formed by two confluent shields) on the side of each occipital. Six 
lower labials; the first pair not forming a suture together behind the median labial 
shield. Two pairs of elongate chin-shields. Ventrals 142; subcaudals 46. Upper 
parts brownish-olive ; a broad black collar across the neck ; a very narrow, indistinct, 
blackish vertebral line on the anterior part of the trunk. 
The typical specimen is still the only one known of this snake. It is 9 inches long, 
the tail measuring 2. 
STENORHINA. 
Stenorhina, Dum. Mém. Ac. Se. xxiii. p. 490 (1853); Dum. & Bibr. Erpét. vii. p. 865 ; Giinth. 
Cat. Col. Sn. p. 246. 
Microphis, Hallow. Proc. Ac. N. Se. Phil. vii. p. 97 (1854). 
Bergenia, Steindachner, Reise Novara, Rept. p. 92 (1869). 
Body cylindrical, calamariform ; tail of proportionate length; head small, flat, not 
distinct from neck. Rostral rounded, not prominent. Two pairs of frontals, the 
anterior confluent with the anterior nasal. Posterior nasal confluent with, or distinct 
from, a loreal. Nostril between the two shields; one anterior, two posterior oculars. 
Scales smooth, in seventeen rows. 
1. Stenorhina degenhardti. 
Calamaria degenhardtii, Berthold, Neue Rept. von Neu-Granada, Gétting. 1846, p. 8, t. 1. 
fig. 3, 4. 
Stenorhina degenhardtii, Peters, MB. Ak. Wiss. Berl. 1861, p. 461; Jan, Arch. per la Zool. ii. 
p. 63; Bocourt, Miss. Sc. Mex., Rept. p. 594, t. 87. figg. 7, 7 a-e; Cope, Journ. Ac. N. Se. 
Phil, viii. p. 142 (1876). 
Stenorhina degenhardtii, var. quinquelineata, Jan, Iconogr. Ophid. xlviii. t. 2. fig. 6. 
Stenorhina degenkardtii, var. ocellata, Jan, Iconogr. Ophid. xlviii. t. 2. fig. 5. 
Stenorhina degenhardtii, var. apiata, Cope, Journ. Ac. N. Se. Phil. viii. p. 142; Bocourt, Miss, 
Scient. Mex., Rept. p. 597, t. 87. figg. 10, 10a; Sumichrast, Bull. Soc. Zool. Fr. 1880, 
p- 180. 
Stenorhina degenhardtii, var. kennicottiana, Bocourt, Miss. Scient. Mex., Rept. p. 595, t. 37. 
figg. 9, 9a, b. 
Stenorhina ventralis, Dum. & Bibr. Erpét. vii. p. 867 ; Giinth. Cat. Col. Sn. p. 246 ; Salv. P. Z.S. 
1861, p. 228. 
