COLLECTION WADE BY W. SAVILLE-KENT, F.L.S., F.Z.S., ETC. 285 



developed on the external surface of the mandible and projecting 

 forwards ; caudal fin furcate, with a central lobe through which the 

 lateral line is continued ; minute cycloid scales developed only in 

 the posterior half of the body. Colour, in life, transparent, with 

 minute black specklings along the dorsal surface ; the iris of the 

 eye peacock blue. Length — three to four inches. Habitat. — Cam- 

 bridge Gulf, N. Australia. 



Ambhjopus rubi-istriatus, s-k. PI. fig. 3. 



D. 6/44. A. 6/44. A. 1/42. 



Head obtuse, contained nearly five times in the total length, 

 the eyes exceedingly minute, situated on the top of the head ; caudal 

 fin rhomboidal, pointed ; the dorsal fin originating immediately 

 above the base of the pectorals ; scales minute, cycloid, imbedded 

 in the skin. Colour in life — body rose pink, a carmine streak 

 defining the contour of the lateral line, secondary streaks of the 

 same tint branching from the primary streak and indicating the 

 °utlines of the myotomes, a carmine patch at the base of the pectoral 

 fins, all the fins yellowish. Length — 4 inches. Habitat. — Cam- 

 bridge Gulf and Port Darwin, N. Australia. 



Holacanthus darwiniensis. s-k. 



Preopercular spine smooth, slighily grooved, reaching to the 

 vertical from the hind margin of the operculum ; the dorsal and 

 anal fins rounded posteriorly ; scales small. Colrur in life — ground 

 colour of the head and throat, and also the pectoral, ventral and 

 caudal fins, and the base of the tail, bright yellow ; the remainder 

 of the body and the dorsal and anal fins a deep purple bhck, 

 traversed by numerous undulating and occasionally branching 

 longitudinal bluish-white lines, about thirty such lines on the body 

 and about nine such lines on the dorsal and anal fins respectively. 

 A dark unstriated purple-black band extending vertically from the 

 front of the head through and enclosing the eye, and continued 

 slightly obliquely backwards to the chest ; a yellow band extending 

 longitudinally along the dorsal surface of the body, encroaching 



