378 31E. C. TATE REGAN OX THE FISHES [ISTov. 28, 



from Prof. W. B.' Spencer, agree very well with Johnston's 

 description of Galaxias atkinsonii from the River Pieman. They 

 differ from the adult fish in the more slender body (depth 6-8 in 

 the length, caudal peduncle If-lf as long as deep), the smaller 

 mouth with the jaws equal anteriorly, and the less distinct 

 markings. 



17, Galaxias rostkatus. 



Galaxias rostrains Klunz. Arch. f. ISTat. 1872, p. 41. 



Depth of body 81 in the total length, length of head 5|. 

 Snout 1^ as long as eye, the diameter of which is 4^ in the length 

 of head and li in the interorbital width. Jaws equal anteriorly; 

 maxillary extending to below middle of eye. 6 branchiostegals. 

 Dorsal 11. Anal 14, commencing a little behind the origin of 

 the dorsal. Pectoral extending much less than ^ of the distance 

 from its base to the base of ventral. Yentrals 7-rayed, 

 originating at a point equidistant from anterior margin of eye 

 and base of caudal. A dark spot on the base of the caudal fin. 



Mersey Rivei-. 



Total length 130 mm. 



Evidently allied to G. occidentalis and G. vxdtii 



18. Galaxias truttaceus. (Plate XIII. fig. 4.) 



Galaxias triittacexis Cuv. Regne Anim. ii. p. 283 (1817); Ouv. 

 & Yal. Hist. Nat. Poiss. xviii. p. 344, pi. 543 (1846); Richards. 

 Zool. 'Erebus' & 'Terror,' Fish. p. 75, pi. xlii. figs. 1-6 ; Giinth. 

 Cat. Fish. vi. p. 209 (1866); Macleay, Proc. Linn. Soc. N.S. 

 "Wales, vi. 1881, p. 229; Johnston, Proc. Roy. Soc, Tasmania, 

 1882, p. 130. 



Galaxias ocellatus McCoy, Intern. Exhib. Ess. p. 14 (1866); 

 Casteln. Proc. Zool. Soc. Victoria, i. 1872, 'p. 175; Macleay, t. c. 

 p. 235. 



Lower jaw with the lateral teeth more or less distinctly enlarged 

 and canine-like. Depth of body 5-6 in the length, length of 

 of head 4|— 44. Snout as long as or slightly longei- than eye, the 

 diameter of which is 4-4| in the length of head, interorbital 

 width 2\. Jaws equal anteriorly ; maxillary extending to belo■^^' 

 anterior \ or anterior ^ of eye. 7-9 branchiostegals. 8 or 9 gill- 

 rakers on the lower part of the anterior arch. Dorsal 10-12 

 (III-IY 7-8) ; distance from origin of dorsal to base of caudal 

 3|-3-| in the length of the fish. Anal 14-16 (IV-Y 10-12), 

 commencing below the anterior \ of the dorsal, when laid back 

 usually reaching the procurrent caudal rays. Pectoral extending' 

 2 the distance from its base to the base of ventral. Ventrals 

 7-rayed, originating at a point equidistant from eye and base of 

 caudal, extending ^ of the distance from their base to the origin 

 of anal. Caudal emarginate. Caudal peduncle a litttle longer 

 than deep. Olivaceous, with purplish ocellated spots ; upper lip 

 dark ; an oblique dark stripe running back from below the eye ; 



