1869. ] SURGEON F. DAY ON INDIAN FISHES. 613 
species of fish, that both it and the Clarias magur, H. B., are exten- 
sively bred in India and the East for stocking tanks. There is hardly 
any thing which pays better, whilst the trouble is but slight. Do- 
mestication causes a wide difference in a few generations even in 
fishes ; and an overstocked tank will give a larger proportion of the 
lanky S. fossilis, Bl., than the stouter-looking S. singio, H. B. 
In the ‘Journal of the Asiatic Society of Bengal’ (1860, p. 156), 
Mr. Blyth gives a short description of Pseudosilurus macrophthal- 
mus, sp. nov., from Burma, specimens of which I was unable to find 
in the collection, but I recognize it in the following, which I pro- 
cured in the Irrawaddi. 
CALLICHROUS MACROPHTHALMUS, Blyth. 
Di ate De “Veg! VAL 742762 © C17. 
Length of head 52, of pectoral 52;, height of body of the total 
length. 
Eyes. Diameter 4 of length of head, 1 diameter from end of 
snout, 24 diameters apart. 
Lower jaw prominent; maxillary cirri reach to the middle of the 
length of the fish, their extremities being very fine; mandibular 
ones to the gill-opening. 
Teeth in cardiform bands in both jaws ; ina single or double series 
across the vomer, interrupted in the middle. 
Fins. Pectoral spine as long as the head without the snout, 
strongly serrated internally in its last half. A deep notch between 
the posterior extremity of the anal and the commencement of the 
caudal, which latter is deeply lobed, the lower one being the longest. 
Colours. A well-developed round black blotch exists above the 
posterior third of the pectoral fin. Body greenish along the back, 
sides silvery, abdomen shot with purple. Opercles covered with fine 
spots and glossed with a golden colour. 
Differs from C. bimaculatus in the larger size of the eye, the 
greater length of the pectoral spine and maxillary cirri, as well as in 
the extent of the anal fin, &c. 
Hab. The Irrawaddi and its branches. 
Pototus nitipus, Blyth (J. A. S. of Bengal, 1858, p. 282), is 
doubtless the Coius gudgutia, H. Buch. (pp. 94, 370), as subse- 
quently observed by Mr. Blyth (/. c. 1860, p. 111); but it is not a 
Mesoprion as he suggested, but the Pristipoma hasta, Bl. 
CutTopon LAyarpt, Blyth, in Kelaart’s ‘Prod. Faun, Zeylan. 
Appendix’ (p. 50), is Chetodon vittatus, Bl. Schn. 
PHRACTOCEPHALUS ITCHKEEA, Sykes (Trans. Zool. Soc. ii, 
p- 373, t. 67. f. 1), is not a Macrones as suggested by Dr. Giinther 
(Catal. v. p. 84), but is identical with Pimelodus cenia, H. Buch. 
(pp- 174, 376, pl. 31. f. 57), a Hemipimelodus of Bleeker. It is 
fully described in my paper “On the Fishes of Orissa.” (See anted, 
p- 308.) 
