Hutton.—On some New Zealand Fishes. 105 
former opinion that it is preferable to keep them both in Kathetostoma. 
Dr. Haast has proposed (Trans. N.Z. Inst., V., p. 274) to establish another 
genus for the Cat-fish with a filament ; but Kathetostoma was not separated 
from Anema by Dr. Giinther on account of its having extra spines on the 
preoperculum, mandibula, and throat, as Dr. Haast supposes, but because it is 
naked, while Anema possesses minute scales. As, however, both our Cat- 
fishes have minute scales, while one has a filament in its mouth and the other 
_ has not, it seems to me impossible to keep up this distinction. The adoption 
of Dr. Haast’s suggestion would necessitate the separation of our Cat-fish into 
two genera, and add a third genus, where, I think, one is sufficient. I cannot, 
therefore, agree with his views. 
34A. KATHETOSTOMA MACULOSA. 
Uranoscopus maculosus, Solander, Pisc. Austr., M.SS., p. 21 (1770). Uranos- 
copus maculatus, Richardson, Ereb. and Terr. Fishes, p. 54, pl. 33, f. 1-3, 
nec. U. maculatus, Forster. 
1.10; A. ils P. 15 V. S 
Length three and a quarter times that of the head, which is nine times the 
diameter of the eye; interorbital space twice the diameter of the eye; a 
filament in the mouth below the tongue. 
Brown above, with large distinct pale spots on the back and sides ; pectoral 
fins margined with white and dusky on the inside; caudal whitish, with a 
broad brown vertical band in the middle, and tipped with reddish. 
General length 7 or 8 inches, sometimes reaching 11 inches. 
The humeral and preorbital spines are sharper and more developed than 
in the next species, showing that it is not the young. : 
34B. KATHETOSTOMA MONOPTERYGIUM. 
Uranoscopus maculatus, J. R. Forster, apud Schn., p. 49, An. 1801. Anema 
monopterygium, Günther, Cat. Fish Brit. Mus., IL, p. 230. 
I 307 A I8; P.H; V. b. 
Length three and three quarter times that of the head, which is twelve 
times the diameter of the eye; interorbital space two and three quarter times 
the diameter of the eye ; no filament in the mouth. 
Brownish olivaceous above, with numerous small, often indistinct, pale 
spots on the back, which are larger on the sides; pectoral fins not margined 
with white, and the inside mottled with olivaceous and brown; caudal 
reddish, marbled with olivaceous brown. 
General length about 16 inches, sometimes reaching 24 inches. 
The granulations on the cranial plates are of quite a different character to 
those of the last species, and are much more obscure. The pores on the 
inferior margin of the preoperculum are proportionally much larger, and the 
o 
