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Show 1867.] DR. J. E. GRAY ON THE FELIDA. 875 These authors must have examined their specimens very cursorily, and cannot have paid any attention to the length of the tail and the distribution of the bands when present. It will be seen by m y preceding observations, founded on the examination of the specimens in the British Museum received from all parts of Africa-from Tunis and Egypt in the north, Abyssinia in the east, and the Cape of Good Hope in the south, that these Cats are all of one species, and of a species easily distinguished from the Chaus of Asia by the greater length and development of the tail. Of the genus Chaus (as defined by the shortness of the tail), which appears to be confined to Asia, there are what I am inclined to regard as three distinct species in the Museum Collection. The largest species is the animal that I figured in the ' Illustrations of Indian Zoology' under the name of Felis affinis, having convinced myself that it was a distinct species years ago, when I was studying the animals of India from the Hardwicke Collection of Drawings. I have little doubt that this is the Cat described and figured by Pallas in the ' Zoographia Rosso-Asiatica,' t. 2, under the name of Felis catolynx. It is certainly the Lyncus erythrolis of Hodgson, whose drawings for his 'Nepal Fauna' contain several good figures of it. It may be the Felis kutas of Pearson. It inhabits, according to Mr. Hodgson, the central and lower regions of Nepal. There is a well-stuffed adult specimen of this Cat in the British Museum ; it is a magnificent animal. It is known by the bright yellow colour of the fur, without any, or with only very indistinct, indications of darker streaks across the body, which, when present, are only to be seen when the body is looked at at certain angles. Giildenstadt's (Nov. Comm. Acad. Petrop. xx. p. 483, t. 14) description and figure of the Felis chaus from the shores of the Caspian agree with this animal in most particulars, and represent the short tail of the genus Chaus, the tail being rather more than one-fourth of the entire length of the body, or one-third of the length of the body and head (30+11). The fur is described as " fusco-lutescens, gulae et regionis umbilicalis albidus ; pectoris et abdominis dilute rufescens." In the figure the under part is represented as much paler than this description justifies, or than may have been intended. Otherwise it is a good representative of the Nepal animal. I have not seen any specimen from the Caspian. The red ear is common to the Nepal F. affinis and most specimens of F. caligata from Africa. In the British Museum there are two small specimens of the genus Chaus with short tails from India which have more distinct dark bands across their body and legs, and which are without doubt the Cats that M M . F. Cuvier and Blyth have confounded with the longer-tailed Felis maniculata of Africa. This Cat was figured, from a specimen then alive in Exeter Change, under the name of the Bangalore Cat (F. chaus), in m y ' Spicilegia Zoologica,' t. 2. f. 1. It is probably the Felis jacquemonti of M, Isidore Geoffroy, in the ' Zoology to Jacquemont's Voyage,' the skull of which is figured t. 3. f. 1. Unfortunately the specimens in the |