1864.] ON REPTILES OBTAINED BY CAPT. SPEKE. 115 
62. PELECANUS, sp. 
Head, perhaps, of P. minor, Riipp. 
Uganda; and common all the way down the Nile to Gondokoro. 
—J.H.S. 
3. On THE REPTILES AND FISHES OBTAINED BY Capt. SPEXE 
DURING THE East-Arrican Exprepirion. By Dr. A. 
GUNTHER. 
(Plate XV.) 
The Reptiles brought home by Capt. Speke consist of four speci- 
mens of Tortoises, belonging to the genera Testudo, Kinixys, and 
Pelomedusa. One of the species is new, and has been named by 
Dr. Gray Pelomedusa spekii. 
The Lizards consist of two specimens of Agama, two of Eremias, 
one Phelsuma, and one Tiliqua. 
The Snakes consist of one specimen of Python sebe, one of Ooro- 
nella, two of Psammophis, one of Bucephalus (capensis), three of 
Ahetulla (A. irregularis and A. natalensis), two of Echidna (arie- 
tans), one of the black African Cobra (Naja haje), and one of a new 
and interesting species of Causus, which I have described* as new, 
with the following characters :— 
*‘Causus (HETEROPHIS) RosTRATUS. (Pl. XV.) 
** Rostral shield turned upwards, forming a prominent, sharpish 
transverse ridge above ; scales in seventeen rows ; a series of large 
spots along the back. 
“<The rostral shield has a flat oblique inferior surface, and forms 
above a curved, prominent transverse ridge ; it terminates posteriorly 
in a triangular process intercalated between the front parts of the 
anterior frontals. The nostril is between three shields, viz. between 
a narrow longish anterior nasal, a small square posterior nasal, and 
the anterior frontal ; the latter shield is larger and longer than the 
posterior, which is twice as broad as long. Vertical five-sided, rather 
large; occipitals small, shorter than vertical, truncated behind. 
Loreal square. The orbit is surrounded by four narrow shields (the 
supraorbital not included), so that none of the labials enter the orbit. 
Six upper labials; temporals 2+3. Scales small, smooth, in 17 
rows. Ventrals 121; anal entire; subcaudals 15. : 
‘‘ Greyish olive above, with a vertebral series of subrhombic white- 
edged black spots ; neck with a triangular blackish spot, the point 
of which is directed forwards, and resting on the vertical shield. 
Lower parts whitish, along the middle blackish. 
“This interesting species was obtained in Ugogo. The single 
specimen is 10 inches long, the tail measuring 10 lines.” 
Five specimens of fishes are in Capt. Speke’s collection ; but their 
imperfect state only enables me to say that one of them is of the 
genus Claritas. 
* Ann. Nat. Hist. ser. 3. vol. xii. p. 363. 
