E. LÖNNBERG, M AMMALOG Y OF ECUADOR. 17 



ferent from M. macrura and as this name appears to be a 

 little earlier than 31. affinis I have used the former. 



Grisoii vittatus brasiliensis Thunberg. 



1 specimen from Gualea, 5,000 feet above the sea, ^/s 

 1914. »Brought by Indians.» 



Nehring, who has made the Grisons the subject of much 

 study, drew first the attention to the fact that the larger forms 

 of the genus had an inner cusp on the lower carnassial, m^, 

 while such a one was lacking in the smaller forms. In the 

 year 1912 Thomas^ proposed to make this character of sub- 

 generic value and to call the smaller forms without the cusp 

 mentioned Grisonella, while the larger forms provided with 

 this cusp should constitute Grison s. str. 



Already 1907^ Thomas pointed out that Schreber's spe- 

 cific name vitlata »was based on a Surinam animal, thus 

 probably one with a supplementary cusp on the lower car- 

 nassial, and certainly not» the small Grison of Southern 

 Brazil. The latter was therefore renamed Grison (Grisonella) 

 furax by Thomas, who also added a new subspecies C. /. 

 luteolus from Bolivia, and 1912 another G. /. melinus from 

 »Chili between about 30° and 36° S. lat. and Argentina from 

 Tucuman to Chubut». At the same time he revived Moli- 

 na's specific name cuja for the Grison from southern Chili, 

 to which he also referred Molina's name quiqui and Neh- 



ring's chilensis. 



For the larger Grisons = Grison s. str. then the followmg 



names remain. 



Grison vittatus Schreber from Surinam. 



» brasiliensis Thunberg » Brazil. 

 » allamandi Bell. » no certain locality. 



» crassidens Nehring s> Minas Geraes & Santa 



Catharina, Brazil. 

 » canaster Nelson ?» Yucatan. 



» andinus Thomas » Peru. 



Nehring has also stated the presence of a large Grison 

 s. str. in Costa Rica and Honduras. 



' Ann. Mag. N. H. (8) 10, p. 46. 



2 » » » (7) 20, p. 163. 



Arkiv för zoologi. Bd H. K-o i. 



