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Show 134 LT.-COL. J. MALCOLM FAWCETT ON [June 7, newly-born example of this species, which was naked and blind and scarcely distinguishable from the young of the Common Rat. In this respect the young differed markedly from those of the Egyptian Spiny Mouse (Acomys), which were born with the eyes open and the skin covered with hair, the brood consisting of but two individuals only. This fact further supported the view that the condition of the young at birth could not be taken as a criterion of affinity in the case of the Rodentia. The following papers were read :- 1. On some New and Little-known Butterflies, mainly from high elevations in the N .E . Himalayas. By Lt.-Col. J. M a l c o l m F a w c e t t * . [Received April 9, 1904.] (Plate IX.t) [The complete account of the new species described in this communication appears here, but as the names and preliminary diagnoses were published in the ‘ Abstract/ such species are distinguished by the name being underlined.- E d it o r .] The main object of this paper is to describe some species which were taken by the native collectors of Mr. J. C. White, British Commissioner in Sikkim, at high elevations in the N.E. Himalayas, on the borders of Thibet. I have been unable to identify them with any species in the Collection of the British Museum, or in the Rothschild Collection at Tring, and they were subsequently sent to Mr. H. J. Elwes, who is unacquainted with them. Under these circumstances it appears to me necessary that they should receive names, although future investigation may perhaps demonstrate some of them to be geographical forms of species already described. It also appears essential that the three species of Colicis which have been taken at high elevations on the Sikkim-Thibet Frontier should be figured together; and for this reason a figure and description of C. eogene var. leechi (Gr.-Gr.), of which a figure does not appear to have been hitherto published, have been added to the figures and descriptions of the two new species. At the same time that the above-mentioned species were taken, there were also four species of the genus Parnassius captured on the Sikkim-Thibet Frontier : one is clearly P. imperator (described by Herr Friihstorfer as P. imperator augustus); a second is V. epaphus var. sikkimensis Elwes ; and the other two have been * Communicated by the Se c r e t a r y . f For explanation of the Plate see p. 141. |