8 



MR. P. L. SCLATER ON AMERICAN QUADRUMANA. [Jail. 2> 



Dr. v. Frantzius met with it in Costa Rica, and describes it as being 

 there of a blacker colour than in Nicaragua. It is possible, therefore, 

 that the Costa-Rican form may be intermediate between this species 

 and the last. 



Mr. Salvin's collector Arce obtained specimens of this species in 

 Costa Rica, which are now in the British Museum. 



10. Midas geoffroii. 



Hapale geoffroii, Puch. Rev. Zool. 1845, p. 336. 



Midas geoffroii, Is. Geoffr. Cat. p. 63 ; Sclater, P. Z. S. 1871, 

 p. 478, pi. 38. 



I have recently recorded the receipt by the Society of a living ex- 

 ample of this species from Colon ; and since that date other specimens 

 have been received from the same port — namely, two on the 2nd of 

 September, and one on the 12th. The specimens of Hapale cedipus 

 referred to by me (N. H. R. 1861, p. 509) as "said to have been 

 obtained in Chiriqui," were probably of this nearly allied species. 



No other member of the family Hapalidse, so far as I know, is 

 found so far north as Panama. In the ' Annals and Magazine of 

 Natural History' for 1843 (vol. x. p. 398) Dr. Gray has described 

 Iacchus rufiventer as coming from Mexico. This, however, is an 

 error, as the species is Amazonian, and was obtained by Natterer * 

 and Herndon f in the Amazonian district. 



Of the two subjoined tables the first shows which of the genera 

 of S. American Monkeys are found in Central America, and how far 

 north they advance according to our present information. The 

 second shows the range of the previously mentioned ten species. 



Table I. 



I. CEBID.E. 



1. Saimiris 



2. Nyctipithecus 



3. Callithrix 



4. Cebus 



5. Ateles 



6. Brachy teles 



7. Mycetes 



8. Pithecia 



9. Brachy urus 



II. Hapalid.e 



10. Hapale 



11. Midas 



g ho 

 3 g 



to Q3 



a *^ 

 Pn 



-2 

 m 

 o 



Q 



So 



B 

 -8 



a 

 3 



a 



* See Reichenbach's ' Affen,' p. 14, where this species is described as Midas 

 erythrog aster. 



t Cf. Slack, Pr. Acad. Phil. 1861, p. 4(V'>, where this species is described as 

 Midas elegantulus. 



