Hector.— On Motella nove zealandis. 107 
palate ; snout a quarter the length of the head ; upper jaw without a notch ; 
cutaneous fold half as long as the snout; eyes divided by a narrow ridge ; 
gill openings as in A. monopus ; scales small, cycloid ; lateral line straight. 
Dorsal and anal rays not branched; dorsal commences at the end of the 
cutaneous fold, and terminates at a distance from the caudal, which is 
contained two and a half times in the least depth of the tail; middle ray less 
than half the length of the head ; caudal slightly rounded ; left pectoral nearly 
three fifths the length of the head, right much shorter; one ventral, con- 
tinuous with the anal; vent on the blind side. 
Left side brownish, blotched with black ; right side yellowish white. 
This specimen agrees very well with Dr. Giinther’s description of 
R. tapirina, except that the eyes are on the left instead of the right side, 
which may be an accidental variety. The fish described by me under this 
name in the Trans. N.Z. Inst. (V., p. 268, 83b) evidently belongs to another 
species, and it can be distinguished from the present one by its small cutaneous 
fold, the broad interorbital space, its large and deeply sunken scales, and by 
its general form. It may be called Rhombosolea retiaria. 
G. grandis, Haast. Trans. N.Z. Inst., V., p. 278. 
I have examined a type specimen of this fish, sent by Dr. Haast to the 
Colonial Museum, and find that it agrees in every particular with G. brevi- 
pinnis, Günther. It is probable that the large * trout" mentioned by 
Dr. Hector (Cat. N.Z. Fishes, p. 124) must be also referred to this species, 
which is common in the rivers and lakes of the South Island, and not to 
Prototroctes oxyrhynchus, for the latter fish is found only in rapidly-running 
streams. 
Авт. XXII.—WNotice of Motella nove zealandis, n.s. 
By James Hector, M.D. F.R.S. 
Pl. XVIIL, 76 b. 
[Read before the Wellington Philosophical Society, 16th January, 1874.] 
Р. 11; D. 60—58; А. 44; V. 3, 
Bopy compressed; snout broad, depressed, equal in length to interorbital 
distance, with three barbels, two above and one beneath from lower jaw. 
Gape one third the length of head. Length five times that of the head, and 
six and a half times the height. First dorsal of minute cirri of equal length; 
commences at occiput. Second dorsal commences at one third the length from 
the snout. Post-anal portion of body one fourth longer than pre-anal. Height 
of dorsal uniform. Teeth in a band on both jaws, with the outer series 
