400 Mr. F. W. Hutton on New-Zealand Fishes. 



XLIX. — Notes on some New-Zealand Fishes. 

 By F. W. Hutton, F.G.S., C.M.Z.S. 



Kathetostoma monopterygium. 



Two species are, I believe, confused under this name in my 

 'Catalogue of the Fishes of New Zealand ' (1872), which I 

 think can thus be distinguished : — 



Kathetostoma monopterygium . 



Uranoscopus maculattis, J. R. Forster. 



Anema monopterygium, Giinther, Cat. Brit. Mus. ii. p. 230. 



D. 20. A. 18. 



Length 3f times that of the head, which is 12 times the 

 diameter of the eye ; interorbital space 2f 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. Length 16-24 

 inches. 



The granulation of the cranial plates is of quite a different 

 character to that of the next species, and is much more obscure. 

 The pores on the inferior margin of the prseoperculum are in 

 proportion much larger ; and the villi on the lips, especially 

 the upper, are more developed. The lateral line also is far 

 more difficult to distinguish. 



Kathetostoma maculosa. 



Uranoscopus maculosus, Solander. 



TJ. maculatus, Richardson, Voy. Ereb. & Terr., Fishes, p. 54, pi. xxxiii. 



D. 18. A. 17. 



Length 3^ times that of the head, which is 9 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 Avhitish, with abroad brown vertical band in the middle, 

 and tipped with reddish. Length 7-11 inches. 



The humeral and prasorbital spines are sharper and more 

 developed than in the last species, showing that it cannot be 

 the young. 



Leptoscopus macropyguSy Richardson, I. c. p. 55. 

 This fish has been found in the Greymouth Lagoon. 



