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Show 378 MR. H. J. ELWES ON SOME [May 6, on each side, and to the fact that in Otocyon there is sometimes fourth upper molar. Professor Flower has recorded 1 the presence of a second, small, upper molar in Lcticyon. Donitz 2 has described the presence of an extra lower premolar between the normal first and second premolars in one specimen of C. mesomelas, and of a small third upper molar with two tubercles on the left side of another specimen of the same species. Finally, Nehring3 has called attention to the cases of a Dingo with five premolars above and below, and of two domestic dogs, one with an extra molar both above and below, the other (a terrier) with only two inferior molars. The abnormal defects of dentition in Pug dogs, as is well known, may be such that but one tooth exists on either side of either jaw behind the canines 4. 6. O n some new Moths from India. By H . J. E L W E S , F.Z.S. [Received May 6, 1890.] (Plates XXXII.-XXX1V.) Since I returned from India in 1886 I have been gradually getting into order tbe \ ery large collection of Moths which I made in Sikkim; and as this has been yearly increased by numerous additions sent me by m y lamented friend Otto Moiler and by Messrs. Gammie and Knyvett, I have hitherto refrained from describing any of the novelties, which I believe to amount to something like 200 species out of about 2000 found in Sikkim. The difficulty of naming these is very great, as since Guenee's time no one has attempted a general revision of the genera of Heterocera, and though the nomenclature of Eastern species has been almost a monopoly of Messrs. Walker, Butler, and Moore, yet the genera they have described are rarely based on characters which can be easily examined or compared with those of their allies. Notwithstanding the assistance 1 have received from Mr. F. Moore, whose knowledge of Indian moths is unequalled, and from Messrs. Druce and Leech, and Col. Swinhoe, to allot' whom my best thanks are due, I have in some instances been unable to find genera to suit m y new species, for which in the existing state of classification I think it unwise to propose new generic names. I have lately received from the Naga Hills a fine series of Moths collected by Mr. Doherty, of which a few are included in this paper, and which will, when worked out, throw much light on the distribution of species in that most interesting and prolific part of the Himalo- Chinese subregion. 1 P.Z. S. 1880, p. 71. - Sitzungsb. d. Gesell. naturf. Freunde, Berlin, 1869, p. 41, and 1872, p. 54. 3 Op. cit. 1882, p. 65. 4 See Dr. Gray, P. Z. S. 1867, p. 46, and also Cope, Proc. Acad. N. S. Philad. 1879, pp. 188 & 189, and the ' American .Naturalist,' vol. xiii. (1879). p. Gob. |