426 Dr. A. Giinther on new Species of Snakes 
of moderate length. Kye of moderate size; two pairs of fron- 
tals ; one vertical; superciliary well developed ; occipitals re- 
placed by scales; labials separated from the eye by a ring of 
scales ; scales keeled, in twenty-one rows; subcaudals simple ; 
maxillary with the hindmost tooth slightly enlarged an 
grooved in its basal portion ; anterior maxillary teeth and an- 
terior palatine teeth rather larger than the middle ones. 
Pythonodipsas carinata. Pl. XIX. figs. K. 
Rostral shield broader than deep, just reaching the upper 
surface of the head; anterior frontals small, scarcely half as 
large as posterior; (nostril very narrow, between two small 
shields*). Loreal region covered by two or three scales, one 
of which points upwards and reaches the vertical; preeorbital 
larger than the seven other scales which complete the orbital 
ring; occiput and temple covered by equally small scales, the 
occipital being represented by a small shield situated behind 
the superciliary shield ; nine or ten small upper labials. Scales 
much imbricate, with the keel rather flat. Ventrals 192; 
anal entire; subcaudals 51. 
Upper parts yellowish olive, with two dorsal series of 
blackish spots, the spots of several pairs confluent into cross 
bands ; flanks with smaller and less distinct spots ; lower parts 
uniform white. 
I have examined one specimen of this singular snake. It 
was found by Mr. John Chapman on the Zambezi. The spe- 
cimen is, 244 inches long, the head being 10 lines, and the tail 
34 inches long. 
Lycodon.rufozonatus (Cant.). 
In two young examples from Formosa the loreal does not 
quite extend to the eye, although it is produced backwards. 
Ophites albofuscus (D. & B.). 
Occurs also in Formosa; feeds on lizards, 
Boodon lineatus (D. & B.). 
Specimens from the Zambezi and Zanzibar have the scales 
in twenty-five or twenty-seven rows. Its food consists of 
nocturnal lizards, as well as mammals. | 
Lycophidium trroratum (Leach), 
- Coluber irroratus, Leach. 
_ Hypsirhina maura, Gray. 
Metoporhina irrorata, Gthr. 
Alopecion fasciatum, Gthr. 
* This portion of the head is unfortunately so much dried that the 
nostrils have become rather indistinct ; they must be extremely small, 
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