230 Mr. R. I. Pocock on a 
Huet, Arch. Mus. d’Hist. Nat. Paris, (2) v. pp. 1-12, 
pls. 1.-xi. (1883), described specimens -referred to 
B. gabbi from Caimito in the province of Chorrera, 
N.W. Panama. 
B. medius, Thomas, Ann. & Mag. Nat. Hist. (8) iv. pp. 232- 
233 (1909). 
From Jimincz, mountains inland of Choeé, W. Colombia, 
alt. 2400'. 
B. alleni, Thomas, Proc. Zool. Soc. Lond. 1880, pp. 397-400; 
pl. xxviil. text-figs. 1-4. 
Typically from Surayacu on the Bobonasa River, Upper 
Palasta River, Ecuador, but stated by Thomas in 
1909 to range from Venezuela to Peru, the most 
southern locality known being Chanchamayo. 
In 1909 Thomas referred the above-cited species to three 
groups :— 
1, Skull rounded, with very convex frontal pro- 
file. General colour less fulvous, more |B. richardson?). 
provish Gr brownisl. -ccnper gti s deren eee B. yabbi (and possibly 
2. Skull rounded, General colour strongly 
PUDLVIGHIS. sinter ix. ai otemenie eecorere weitere ee ene B. medius. 
3. Skull comparatively flat and low. Colour 
EIWOUS asp caida te ck aoe shies eee ere B, alleni. 
Twenty years after the publication of the description of 
B. allent Beddard* described the anatomy of a specimen, 
captured in the woods at Bastrica on the Essequibo River in 
British Guiana, adopting for it the name B. alleni, tentatively 
applied to it as a living animal by Dr. Sclater T in 1895. 
Allen, apparently on the assumption that the identification of 
the animal was cofrect, was inclined to doubt the accuracy 
of the locality. It seems to me, however, impossible to set 
aside such very precise information as that supplied by Mr, A. 
Murray, the donor of the specimen to the Zoological Society. 
Fortunately the skeleton of this Bassaricyon has been pre- 
served ; and upon comparing the skull with the figures and 
desciiption of the skull of B, allenz, I tind in the first place 
that the reference of the specimen to that species is quite 
untenable, and, in the second place, atter extended inquiry, 
that the specimen cannot be referred to any of the described 
species, but comes nearer apparently to B. gabli or B. medius 
* Proc. Zool. Soc. Lond. 1900, pp. 661-775. 
t Dbid. 1895, p. 521. 
