378 MR. H. J. ELWEs ON SOME [May 6, 



on each side, and to the fact that in Otocyon there is sometimes a 

 fourth upper molar. 



Professor Flower has recorded ^ the presence of a second, small, 

 upper molar in Icticyon. 



Uonitz ^ has described the presence of an extra lower premolar 

 between the normal first and second premolars in one specimen 

 of C. inesomelas, and of a small third upper molar with two tubercles 

 on the left side of another specimen -of the same species. 



Finally, Nehring ^ 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 interior 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 *. 



6. On some new Moths from India. By H. J. ElweSj F.Z.S. 



[Eeceived May 6, 1890.] 

 (Plates XXXII.-XXXIV.) 



Since I returned from India in 1886 I have been gradually getting 

 into order the very large collection of Moths which 1 made in Sikkim ; 

 and as this has been yearly increased by numerous additions sent me 

 by my lamented friend Otto M oiler 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 I have received 

 from Mr. F. Moore, whose knowledge of Indian moths is unequalled, 

 and from Messrs. Druce and Leech, and Col. Swinboe, to all of whom 

 my best thanks are due, I have in some instances been unable to 

 find genera to suit my 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. 



'' Sitzuugsb. d. Gesell. naturf. Freunde, Berlin, 1869, p. 41, and 1872, p. 54. 

 » Op. at. 1882, p. 65. 



* See Dr. Gray, P. Z. S. 1867, p. 46, and also Cope, Proo. Acad. N. S. Philad. 

 1879, pp. ]88 & 189, and the 'American Naturalist,' vol. xiii. (1879), p. 655. 



