SCIURUS. 121 



Subgenus G. Guerlinguetus. 



a. Seiurus cestuans hoffmanni Peters. 



Sciurus CBstuans var. hoffmanni Peters, Monatsb. K. Preuss. Akad. 



Wiss. Berl., 1863, p. 654. 

 Sciurus xanthotus Gray, Ann. Mag. Nat. Hist., 3rd Ser., xx, 1867, 



p. 429. 

 Sciurus griseogena ! Gray, Ann. Mag. Nat. Hist., 3rd Ser., xx, 



1867, p. 430. (Part. Costa Rica specimens.) 

 Sciurus rufoniger Allen, Mon. N. Am. Rod., 1877, p. 757. (Part. 



Costa Rica specimens.) 

 Sciurus griseogenys Alston, Proc. Zool. Soc, 1878, p. 667. (Part. 



Costa Rica, & Veragua Panama, specimens.) 

 Sciurus (BsUians hoffmanni Elliot, Mamm. Middle Amer. & W. 



Indies, F. C. M. Pub., iv, Pt. i, 1904, p. 104, fig. 15. Zool. Ser. 



Id. Check-L. Mamm. N. Amer. Cont. & W. Indies, F. C. M. 



Pub., VI, 1905, p. 61. Zool. Ser. 

 Hoffmann's Squirrel. 



1. Adult 6" P. Ypura. E. Gerrard & Sons. 



2. Adult $ P. Lacagua. E. Gerrard & Sons. 

 3-4. Adult — P. Costa Rica. E. Gerrard & Sons. 



5. Adult c? P. Costa Rica. C. F. Underwood. 



6. Adult 9 P. Costa Rica. C. F. Underwood. 



7. Adult 6^ Exch. Borneo, Costa Rica. Am. Mus. Nat. 

 Hist. N. Y. G. K. Cherrie. 



8. Adult 9 Exch. Borneo, Costa Rica. Am. Mus. Nat. 

 Hist. N. Y. G. K. Cherrie. 



9-12. Adult o' P. Boquete, Chiriqui, Costa Rica. J. H. Batty. 



13-16. Adult 9 P. Boquete, Chiriqui, Costa Rica. J. H. Batty. 



17. Adult (J' P. Boqueron, Chiriqui, Costa Rica. J. H. Batty. 



18. Adult 9 P. Boqueron, Chiriqui, Costa Rica. J. H. Batty. 



237. Sciurus chapmani Allen. 



Sciurus (Bstuans hoffmanni Allen & Chapm., Bull. Am. Mus. Nat. 



Hist. N. Y., 1897, p. 17. (nee Peters.) 

 Sciurtis chapmani Allen, Bull. Am. Mus. Nat. Hist. N. Y., 1899, 

 p. 16. 

 Chapman's Squirrel. 



1-2. Adult c? Exch. Princestown, Trinidad. Am. Mus. Nat. 

 Hist. N. Y. F. M. Chapman. 



238. Sciurus langsdorffi Brandt. 



Sciurus langsdorffi Brandt, M6m. Acad. St. Petersb., 1835, P- 4^8, 

 pi. II. 



