1908.] Allen, Mnnnnnlx from Nicaragua. 667 



detail, and a colored plate of the animal and figures of the skulls of both 

 specimens were given, this important memoir forming the entire basis of 

 our present knowledge of the external characters of Bassaricyon gabbi. 1 



In March, 1894, a specimen of B. alleni (the second known) was re- 

 ceived alive at the Menagerie of the London Zoological Society, presented 

 by Mr. A. Murray as a kinkajou, and thus at first entered in the records of 

 the Society. 2 It was said to have been "captured in the woods at Bastrica 

 on the Essequibo River, British Guiana," but, as noted below, there seems 

 reason to doubt the correctness of the assigned locality. It lived for several 

 years in the Society's Menagerie, where I had the pleasure of seeing and 

 handling it in 1896. After its death, some years later, Mr. F. E. Beddard 

 published a valuable paper on its anatomy. 3 



M. Huet believed that B. gabbi and B. alleni were both referable to the 

 same species, the differences between the two pointed out by Thomas being, 

 according to his view, merely individual. In support of this opinion he 

 cited the wide range of variation presented by the kinkajou. His conclu- 

 sions, however, prove not to have been well founded. 



The color of B. gabbi, as described and illustrated by Huet, is golden 

 brown above and lighter, more yellow below; 4 it is thus very different from 

 that of either B. alleni or B. richardsoni, as are also the cranial characters. 



Bassaricyon richardsoni, contrary to what might be expected, much 

 more resembles B. alleni than it does B. gabbi, by which B. richardsoni and 

 B. alleni are geographically separated, both externally and in the character 

 of the skull. As shown by Thomas's colored plate and description, B. 

 alleni has the face clear gray, instead of brown as in B. richardsoni, and the 

 general color of "body and tail orange gray, the hairs of the back being 

 tipped with black," instead of pale fulvous gray strongly washed with black. 

 The skull is quite similar in the two species, as regards proportions and 

 general form, both, however, differing widely and similarly from B. gabbi. 

 But B. alleni and B. richardsoni differ markedly in the character of the last 

 upper molar, which in B. alleni is much reduced in size and triangular, in- 

 stead of being circular in outline and much larger. 



The teeth of B. gabbi and B. richardsoni agree essentially in relative 



1 The exact locality of the type specimen of Bassaricyon was not given in the original 

 description, but I have recently learned from Dr. M. W. Lyon, Jr., Assistant Curator, Division 

 of Mammals, U. S. National Museum, that it came from Talamanca, on the southeast coast of 

 Costa Rica, and therefore very near the locality of the Paris Museum specimens, which are thus 

 almost topotypes of B. gabbi. 



2 Cf. Proc. Zool. Soc., London, 1895, p. 521. 



3 'On the Anatomy of Bassaricyon alleni.' By Frank E. Beddard, M. A., F. R. S., Prosector 

 and Vice-Secretary of the Society. Proc. Zool. Soc. London, 1900, pp. 661-775, figs. 1-7. 



4 He says: " . . . .le sinciput, la moitie" supgrieure du con, les flancs et le dos jusqu'a la base 

 de la queue, les parties externes des membres jusqu'aux extremity's, sont brun roux, . . . . Le dessus 

 des extre'mite's antlrieures et postgrieures est roux dore". . . .Les parties infgrieures en partant du 

 menton, la gorge, le vent re et les parties internes des membres, sont beaucoup plus claires, les 

 poils e"tant blanc jaunatre a la base, roux dor6 clair au milieu et blanc jaun^tre a la pointe 



