256 INDIAN CYPRINID. 
be some unexpected forms unknown to us, the discovery of which would 
necessarily derange any attempt we could now make to trace in farther 
detail the parallel relations of the minor groups among themselves. Six 
species collected in the mountain streams at Simla by Dr. MacLeod, 
and obligingly submitted to me, have proved to be all undescribed, and 
one of them affords the type of a new genus Oreimus, or mountain Barbels, 
of which I had before received from Mr. Griffith a species from Boutan 
(O. guttatus); but as there was but one specimen in Mr. Griffith’s collec- 
tions, and that considerably injured, I hesitated to form from it alone the 
characters of a new group.* This genus has the form of Gonorhynchus ; the 
mouth is situated in like manner under the head, but the alimentary canal 
is considerably shorter, and the dorsal is preceded by a spine as in the Barbels. 
51. I am uncertain as to the habits of the European Breams, not having 
examined them myself; but from all that I can glean on the subject, they 
appear to be insectivorous, and in the best figures I can find of them the 
mouth appears to be directed upward, and the anal fin to be long; these 
characters may prove to be analogies rather than affinities to the Perilamps, 
and until the point be decided, the parallel relations of the two groups cannot 
be made out; the only Indian Bream I am acquainted with (Cyp. cotis, 
Buch.) has the character of the Perilamps both in the form of its mouth 
and length of its alimentary canal, while on the other hand, the old genus 
Leuciscus is not a natural group, some of the European species, as Cyprinus 
Cultratus being doubtless an Opsarius,t while others are certainly her- 
* Cyprinus Richardsonit figured in Hardwicke’s Illust. t. 94. f. 2. is an Oreinus, and may be 
appropriately named O. punctatus. 
+ Leuciscus Cwruleus, Yarreland L. erythropthalmus, Cuv. appear to be Perilamps, L. doudla, 
L. leancastriensis, Yarr. and L. alburnus are also insectivorous. I have mentioned this in a letter 
to Mr. Swainson in October last, and I have no doubt the hint will be sufficient to direct the 
attention of this philosophical naturalist to an examination of the whole of the English species. 
