232 INDIAN CYPRINID. 
25. In consequence of the important connection between colour and 
structure here pointed out, I am in some doubt as to the nature of four 
small species described by Buchanan,* and figured in the collection of his 
drawings at the Botanic Garden. ‘Two of them have been figured in the 
Gangetic Fishes, and one a second time in Hardwicke’s Tlustrations ; but in 
the published figures, the peculiarity of the colours to which I allude, 
and which seems to have been preserved in the original drawings has 
been overlooked. They have the form of Cirrhins, but they are each 
marked with a dark spot at the end of the tail, and the colours of the back 
descend partially across the sides in bars as low as the situation of the lateral 
line. I have added the species in question to the Cirrhins as Cirrhinoids, 
until we know something more of them. Should they prove from the length 
of the abdominal canal to belong to Sarcoborine as their colours indicate, 
they will oceupy a place between the Opsarions and the Loaches. 
26. The third sub-family Apalopterine, consists of the old Linnzan 
genus Cobitis, the Anableps, Pecilia, Lebias, Fundulus, Molinesia, and Cypri- 
nodons, as well as two other genera, Platycarat and Psilorhynchus, to be 
described in a subsequent part of this paper. These fishes are all remarkable 
for their long cylindric bodies covered with a slimy mucous, the absence of 
spines in any of the fins, and the shortness of their alimentary canal. 
Mr. Gray has recently separated the Loaches with suborbitar spines from 
those that are without these singular organs. I have endeavoured to find 
farther reasons to strengthen this division, a single character being insufficient 
* Cyp. Dero. Buch. Gang. Fis. Pl. xxii. f. 78. Cyp. Morala, id. Pl. xviii. f 91. Cyp. 
joalius id. op. Cit. 316. Cyp. Pausius. id. loe cit. 
+ Named by Mr. Gray as Buchanan’s Baléfora, which rather correspond with my Psélorhyn- 
chus, Psil. variegatus being Buchanan’s Cyprinus Balitora. 
