268 
of which were females ; one of them contained two young. I do not 
find any evidence, excepting this, of the number of young produced 
at a birth; but if this be the usual number, it would account for the 
comparative scarcity of the species of Echimys, with the various 
Muride, which are usually so abundant. 
18. CHLoGENys FULVUS, F. Cuv. 
C. fulvus, F. Cuy. Ann. du Mus. x. 206; Pr. Max. Beitr. i. 454. 
C. paca of Waterhouse’s ‘ History of Mammalia.’ 
Although this is not admitted as a good species, distinct from C. 
paca, I have chosen to insert it under the above name, the better to 
identify it—whether a species or mere variety—with that part of 
South America from which it was received, as I do not meet with 
any notice of the occurrence of the commoner species, C. paca, in 
Ecuador. It was taken at Zamora in January 1858, and was brought 
to Mr. Fraser by the Indians, its Xivarro name being Cushshay. 
Mr. Fraser remarks that it was a young male, and that its flesh 
was white and delicate. : 
19. DipELPHYS AZAR&, Temm. Mon. i. 30. 
D. aurita, Pr. Max. Beitr. ii. 392. 
One specimen. It was taken at Cuenca in October 1857. Mr. 
Fraser states that it was killed in a nunnery, and proved to be a 
female, that it is accused of destroying “ fowls, fruit, and grain,”’ lives 
in the roofs of houses, and is nocturnal in its habits. ; 
20. DipeLpHys cANcRIVORA, Gmel. Linn. Syst. Nat. i. 1085 
Temm. Mon. i. 32 (?). 
But one specimen also of this Opossum has been received, and this 
I refer with some doubt to the above species. It.resembles the spe- 
cimens in the British Museum in all respects, save in being larger 
and in having shorter fur. A skull of D. cancrivora, which formed 
part of the Museum of the Zoological Society, and which, from the 
worn condition of the teeth, obviously belonged to an adult animal, 
is considerably smaller than that of the present specimen, but is 
otherwise similar. 
21. DipEeLpuys orNATA, Tschud. Faun. Peru. pl. 7. p. 146. 
From the great similarity in. the colouring and quality of the fur, 
Mr. Waterhouse regards this species as identical with his earlier 
described D. derbyana, notwithstanding that they are considerably 
unlike in point of size. The specimen collected by Mr. Fraser ac- 
cords well with Dr. Tschudi’s description in this respect, saving that 
the ears are evidently smaller. This general accordance with D. 
ornata has induced me to regard the latter as distinct from D. der- 
byana. It is probable that we have several species of these Woolly 
Opossums, which are at present more or less confounded with each 
other. 
