PISCES — MALACOPTERYGIL 
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Muller’s Archiv. 1842, p. 310), J, Muller, in conjunction with 
the author of this report, has made known two new genera of 
the family of Siluroides, from a MS., “ iiber neue Welse.” 
Calophysus, M., T, (1, c. p. 179) ; wide gill clefts ; no teeth in palate ; 
a row of strong teeth on upper and under jaw, behind which, in the 
one or other, is a row of smaller ones ; the first ray of pectoral and 
dorsal fin simply membered at the end, without spines ; a long adipose 
fin ; six barbules ; seven branchial rays. The species are, 0. macrop- 
terus, M., T. {Piinelodus macropterus, Lichst.) ; and C. ctenodus^ M., 
T. [Pimelodus ctenodus, Ag.) 
Euanemus M., T. (1. c. p. 203) ; narrow gill clefts ; body compressed 
laterally ; crest covered by skin ; teeth on upper and under jaw hackle- 
shaped in a band ; none on the vomer and palate bone ; the first ray of 
the dorsal and pectoral fin is a spine ; the dorsal stands quite forwards 
and is small ; a very small adipose fin ; anal fin very long ; rays of the 
pectorals more numerous than in the other Siluridce ; eyes concealed by 
skin ; six barbules. The species, E. colymhetes, is new, and from 
Surinam. 
Silurus indicus, M‘Clelland, 1. c. p. 583 ; four soft rays on the very 
small dorsal fin ; head short ; gill covering posteriorly with a blunt 
rounded angle ; four barbules ; B. 11 ; D. 4 ; P. 1. 3 ; V. 8 ; A. 71 ; C. 18 ; 
Loodianah. Its varieties are, S. canio, duda, and chedra of Buchanan. 
Pimelodus pusillus, Ranzani, 1. c. v. p. 332 (habitat unknown) ; seems 
new. The mail-coat of the head runs out behind to a point, extending to 
the first ray of the dorsal fin ; eight barbules; D. 1. 6 ; P. 1. 7 ; A. 10. 
P. anisurus, M‘Clelland, 1. c. p. 583; under flap of caudal fin shorter 
than upper ; eight barbules ; B. 10 to 15 ; D. 2. 8 ; V. 6 ; A. 9 ; C. 15 ; 
Loodianah. P. indicus, id. ib. under flap of caudal fin shorter than 
upper; eight barbules ; B. 2; D. 2. 6 ; P. 1. 7 ; V. 6 ; A. 8; C. 18: 
Loodianah. 
Bagras macronemus, Ranzani, 1. c. v. p. 334, appears to be Galeich- 
thys Gronovii, Val. ; at least it belongs to this genus. 
An interesting new genus of Siluridce has been described 
by M‘Clelland, 1. c. p. 584, with the name 
Glyptosternon. — Teeth velvety ; head broad and flat ; mouth at its 
under surface ; eyes small and directed upwards ; if there be spines, they 
are concealed in the membranes of the fins ; pectoral and abdominal fins 
broad, sickle shaped ; body beneath more or less covered with warty or 
striped suction surfaces, in order to attach itself to stones ; no bony plates 
in body : habitat, the mountains of India and Central Asia. G. reticu- 
latus ; the under surface of the head and the anterior part of the body 
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