1864.) DR. J. E, GRAY ON WEST-AFRICAN MAMMALS. 57 
descript, and that it approaches Exhydra of Fleming (Phil. of Zool.) 
in having the first premolar suppressed above, but that the latter 
has also the first premolar suppressed below; it has, however, six 
incisors in the upper jaw; while the Sea-Otter (Hnxhydra) has only 
four in the adult state, which the specimen in question has.” 
«It would appear to form an intermediate link between the true 
Otter and the Sea-Otter ; and its habitat in an estuary may there- 
fore perhaps be thought suitable enough.” 
The skull transmitted by Mr. Murray exactly agrees in external 
form and disposition of the teeth with Aonywx of Lesson ; but it 
differs from the specimen of the skull of donyz in the British Mu- 
seum in the suppression of the front upper false grinders; but this 
may be only accidental, or peculiar to the West African form of that 
enus. 
‘ I have never seen any other specimen of a skull or a skin of the 
genus Aonyx from the west coast of Africa; so I cannot say whether 
it differs in any other character from the donyx of the Cape of 
Good Hope. 
Aonyzx differs greatly in the external form of the skull from both 
Lutra and Enhydra. Tam inclined to regard Anahyster as a syno- 
nym of Aonyz. 
The skull of Aonyz is well figured in De Blainville’s ‘ Ostéologie,’ 
plate 8 of the genus Mustela. 
“‘ Rhinomus soricoides (nov. gen., nov. spec.?), Murray, /. c. 
p. 159.” 
‘“‘This is a very puzzling little animal ; it has the appearance of a 
Shrew, with its long snout, but is in reality a mouse. Its dentition 
is somewhat peculiar, having a process behind them like the cusp of 
a carnivorous tooth. It is pentadactylous both before and behind ; 
and as all the allied genera and species have four fingers before and 
five behind, Mr. Murray considered that there was no alternative but 
to make a genus for its reception.” 
The specimen described is a Sorez, allied to, if not the same as, 
Sorex myosurus, the cusp on the lower incisor tooth being the usual 
form of the cutting-teeth of that genus, so that Rhinomus must be 
reduced to a synonym of Sorez. 
GoLUNDA PULCHELLA, Ni. S. 
Blackish brown; chin, throat, inner side of limbs, and beneath 
greyish white; head grizzled with yellowish-white hairs; back with 
six rows of small oblong spots, almost continuous, forming narrow 
lateral streaks; outside of limbs with smaller pale spots, which are 
separated in the middle of the back by a well-defined black streak ; 
tail as long as the body, naked, with short scattered adpressed hairs. 
Hab. West Africa (Mr. Gould); Central Africa (Capt. Speke). 
This species is somewhat like G. barbara of North Africa, but 
the streaks of nearly continuous spots are very much smaller and 
narrower. 
