150 Fretp Museum or Natura History — Zod oey, VoL. X. 
Marmosa musicola Osgood. 
Five specimens, Moyobamba. 
This species, which is of a common cinnamon type of coloration, 
was found only in the gardens and about the houses in the town of 
Moyobamba. So far as indicated by material at hand, it is somewhat 
similar to Marmosa quichua from which it is amply distinguished by its 
well-developed angular postorbital processes. Although presenting 
larger dimensions, it may be allied also to M. lepida, a species we were 
not fortunate enough to obtain although its type locality, Santa Cruz, 
is but a short distance from Lagunas where Mr. Anderson worked for 
nearly two weeks. 
Marmosa waterhousei Tomes. 
Didelphys waterhousit Tomes, Proc. Zodl. Soc., Lond., pp. 58, 271, 
303, pl. Lxxvi, 1860 — Gualaquizar, Ecuador. 
Didelphys cinerea Thomas, Cat. Marsupialia Brit. Mus., p. 342, 
1888. 
Marmosa germana Thomas, Ann. & Mag. Nat. Hist., (7), xm, p. 
143, Feb., 1904 — Sarayacu, Ecuador. 
Two specimens: Moyobamba (1), Yurimaguas (1). 
These were obtained in gardens among the plantains. Neither of 
them shows any white on the tail. The species is closely allied to 
M. cinerea and probably will prove to be only subspecifically separable 
from it. Both the original description and the accompanying colored 
figure of Marmosa waterhouset indicate that M. germana, later described 
from a neighboring locality, is a synonym. 
Chironectes minimus (Zimm.). WATER Opossum. 
An adult female and a small young one were obtained at Moyobamba 
from a native who said he had killed them with his paddle at an early 
hour in the morning as he was crossing the river in a canoe. The skull 
of the adult shows rather marked differences from the figure published 
by Burmeister (Erlaut. Fauna Bras., pl. XI, fig. 3, 1856), especially in 
the shape of the nasals. Burmeister’s specimen doubtless came from 
southeastern Brazil (“‘Neu-Freiburg’’) and it is scarcely safe to assume 
that it represents true minimus of which the type locality is Cayenne. 
Bradypus sp. THREE-TOED SLOTH, 
An adult female secured by Mr. Anderson from a native at Yuri- 
maguas is in the collection. The legs, back, and especially the rump 
