ADDITIONS TO THE FISH FAUNA OF LOUD HOWE ISLAND WAITE. 203 



canine teeth are developed equally with the upper ones ; both 

 pairs are curved and divergent, the lower biting between the 

 upper ones which are rather widely spaced. The second dorsal 

 spine IS united to the third, as shown in my figure. 



Ohelmo truncatus, Kner. 

 A beach-dried example was obtained by Mrs. T. NichoUs, and 

 forwarded to us in August last; and in the "old collection" there 

 is a specimen in spirits, also from the island. 



HoLACANTHUS TiBiCEN, Cuvier and Valenciennes. 

 All the specimens received from the island possess but three 

 anal spines, as in normal examples, and have fourteen dorsal 

 spines. This record is an addition to the Australian fauna, and 

 we are indebted to Mr. Icely for the series obtained. 



HoLACANTHUS CONSPICILLATUS, Sp. nov. 



(Plate XXXV.) 

 D. i. + xiii. 18. A. iii. 18. V. 1-5. P. 17. C. 15 + 2. 

 Length of head 4-4, of caudal fin 5-4, height of body 2-0 in the 

 length (caudal excluded). Diameter of eye 3-7, length of snout 

 6% of the preopercular spine 2-0 in the length of the head. The 

 interorbital space is convex, one-fourth more than the diameter of 

 the eye. Thirteen gill-rakers on the lower limb of the first arch 

 all small, triangular in shape. The teeth are cardiform, and are 

 arranged in a dense band across the front in each jaw. The 

 individual tooth is brown, with a lighter apex, broader than the 

 base ; it is tricuspid, the centre cusp long and acute, the lateral 

 ones small and slightly deflected outwards. Body somewhat elon- 

 gate, anterior profile slightly concave above the snout and in front 

 of the orbits, snout protruding, protractile, the lower jaw much" 

 the longer ; maxilla nearly vertical, equal in length to the diameter 

 of the eye; margin of preopercle inclined forwards, below feebly 

 serrated ; spine gently curved, not channeled, reaching to beneath 

 the bony margin of the opercle, a membrane closely invests its 

 whole inner surface ; the spine is received into a shallow crroove 

 in front of the pectoral. The angle of the opercle is slightly pro- 

 duced, but there is no spine. There is a short recumbent spine 

 immediately in advance of the first erect dorsal spine which 

 arises in advance of the vertical from the opercular border • the 

 eleventh spine is the longest 1-55 in the length of the head and 

 IS slightly shorter than the longest rays. The first anal spine 

 arises beneath the eleventh dorsal, to which the third anal is 

 equal, the soft dorsal and anal are not produced but are rounded 

 posteriorly, both terminate in the same vertical line, but the anal 

 rays extend somewhat further back, nearly to the base of the 

 caudal. Pectoral longer than the ventral which latter is contained 



