90 Trmisactions. — Zoology. 



Pectoral fins are larger than ventrals, and, though the ex- 

 treme height of dorsal and anal and their basal lengths 

 slightly differ, they are practically of the same size. The 

 origin of dorsal is so far in advance of that of anal that a 

 line arising vertically from last intersects middle of base of 

 dorsal. 



Colour. — Ground light bluish-grey, minutely spotted with 

 darker grey and light-brown, and generally spotted and 

 marbled on sides, fins, and tail with dark olive-brown. The 

 spots on back, head, cheeks, and under dorsal (especially the 

 last) are very much the larger. One light patch or semi- 

 band above ventrals and another commencing low down in 

 advance of vertical from origin of dorsal extending back over 

 anal. Belly the general gi'ound colour. Iris of eye golden. 



Measurements of specimen described attached. 



Galaxias fasciatus. 



Last ray of dorsal and anal are double. Longest rays of 

 dorsal exactly equal in height longest rays of pectoral, and 

 equal distance from posterior margin of eye to free margin of 

 gill-covers, equals depth in vertical through posterior margin 

 of eye, and equals the direct distance between the termini of 

 bases of dorsal and anal fins. The longest rays of caudal fin 

 equal the extreme length from superior origin of pectoral to 

 rear free margin of such fin, and also equals the extreme 

 width of body. The eye-opening is inclined to be slightly 

 oval, the larger diameter being the vertical one. The origins of 

 dorsal and anal are in the same vertical. Top of head over 

 eyes slightly rounded, behind eyes flattened. The median 

 depressions along back and belly well marked. The width of 

 gape equals its depth. The commencements of fins are fleshy, 

 the first rays of each being quite imbedded in such, remainder 

 of fins being more generally free from fleshy thickening, and 

 rays approximating in appearance therefore to G. abbreviatus. 

 Cheeks and head are fleshy, hiding opercular divisions. Eibs 

 are much shorter than those of 6f. kokojni, postvectis, or 

 rohinsonii. In full roe and milt end of October. 



Colour. — Rose-brown mottled with darker on the sides and 

 back, and with light-coloured reticulating markings on the 

 back, and 16 or 17 light-coloured irregular transverse large 

 markings or bands along the sides, which are margined on 

 their forward edges with a darker tint. A large irregular 

 bluish marking above the origins of pectorals. Vertical fins 

 darkish and mottled. Iris golden. 



Measurements of specimen 8 in. in length appended. 



The left-hand branchiostegous curtain overlaps the right- 

 hand portion under the throat. Four branchial arches. 



Plate IV. shows Galaxias kokojni, 15J in. and 11 in. total 



