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Show 220 MR. E. DARTLETT ON PERUVIAN MONKEYS. [Feb. 21, as the last-named species ; in fact it may be regarded as rather rare. I obtained specimens of it at Cashiboya on the Ucayali, and Santa Cruz on the Huallaga. 7. NYCTIPITHECUS OSERY/I*, IS. Geoffr. et Dev. I found this species on the Ucayali and Huallaga rivers. It is generally distributed on the Peruvian Amazons, but is by no means common. It is quite nocturnal, coming out in search of food only after dark, and is consequently difficult to obtain. M y specimen is from Yurimaguas on the Huallaga. 8. PITHECIA MONACHUS, Geoffr. This Monkey is but rarely met with on the Peruvian Amazons. I obtained an adult male, female, and young at Chamicuros, an inland town on the Huallaga. These were the only three I met with myself; but I saw others in possession of the Indians. 9. HAPALE PYGMCEA (Spix). Pigmy Marmoset. This pretty little Monkey is extremely rare and difficult to obtain. I shot only one specimen at Santa Cruz, on the Huallaga river, the only locality in which I have met with it. 10. MIDAS DEVILLIII, IS. Geoffr. (Plate XIII.) This is the only species of Midas met with by m e in Eastern Peru. It is plentiful everywhere on the Peruvian Amazons ; and I obtained specimens both on the Huallaga and Ucayali. The sexes hardly differ, the male being merely rather larger and darker, especially on the head and nape, where the hair is longer. This species is extremely delicate and will not bear the least cold. I have had them alive for two or three weeks; but they appear to suffer from cold and die. They are kept, however, by the Indian women, who make pets of them, and put them into the long hair on their heads; with this protection they are able to live for a lon°- time. Having become tame, they frequently hop out and feed or having captured a spider or two scamper back again and hide under the luxuriant crop of their owners, who are generally unwilling: to part with them. J 8 * [Mr. Bartlett's skins of Nyctipithecus are, in my opinion, certainly referable to If. oseryi But I have little doubt that this is the same as N. Jciferans of fepix obtained at Tabatinga. Wagner (Saugeth. v p 108) refers N. wciferans of Spix to N. lemurinus of Columbia, which can hardly be right geographically.-P. L. S 1 t [Three skins of a Midas in Mr. Bartlett's collection are certainly referable to onlyTsaraT u °f " ^ M M ' CastelnaU a n d Deville obtained « ™ specimens Their figure (Castelnau, Exp. M a m m . t. 6. fig. 2) not being very accurate and having; been taken as is stated, from imperfect specimens, the figure herewith given (Plate XIII.) will be acceptable.-P. L. S.] b nerewitn |