EEVIEW OF THE QUEENSLAND FOMACANTHINH^.—OGILBY, 
101 
or less distinctly angulated. Caudal usually rounded^ more rarely cmarginate, 
with the outer cays produced. Anal similar to the soft dorsal, with iii 15 to 22 
rays. Pectoral obtusely pointed, with 15 to 2(1 rays. Yeutrals inserted below 
or slightly behind tlie pectoral base, close together, with a moderate or strong 
spine and 5 rays, the outer of which is iisually produced, without accessory 
scale. Gill-openings wide; gill-meml)ranes separate, narrowly attached to the 
isthmus; brauchiostegals six; pseudobranchue well developed; gill-rakers minute; 
air-bladder lai’ge, posteriorly bifurcate. Pyloric ca‘ca numerous. 
Etymology: — Greek, gags', whole or perfect; aKavOa, a spine. 
Coastal fishes of small or moderate size from the Indian, Pacific, and 
Western Atlantic Oceans. About 40 s])e(*i(‘s known. 
Key to the Queensland Species. 
a^. Scales moderate, in less than 55 transverse series (Holacanihus). 
Habit liolocentriform ; lepidosis without sqnamulas. 
cU Eye longer than the snout ; lateral line incomplete ; dorsal with 14 spines, the soft 
portion obtusely pointed . . . . . . . . . . . . flavissimus. 
h-. Habit chgetodontiform ; lepidosis with scattered squamulre. 
. Eye about as long as snout ; lateral line incomplete ; dorsal with 15 spines, the soft 
portion acutely pointed ; pectoral with 16 or 17 rays . . . . . . bicolor » 
d-. Eye much shorter than snout ; lateral line complete ; dorsal with 13 spines, the soft 
portion obtusely pointed ; pectoral with 19 spines . . . . . . sexstriatus, 
a-. Scales small, in more than 70 transverse series {Acanthochcetodon), 
e‘. Dorsal fin with 14 spines ; lateral line complete. 
/h Eye much shorter than snout ; soft dorsal acutely pointed .. .. imperator, 
f~. Eye rather longer than snout ; soft dorsal roiuided or obtusely pointed 
semicirculatus. 
HOLACANTHUS FLAVISSIMUS Cuvier & Valenciennes. 
Holacantlms fla,vissimus Cuvier & Valenciennes, Hist. Hat. Poiss., vii, 1831. p. 197 ; Jordan 
& Seale, Bull. U. S. Bur. Fisher., xxv, 1905, p. 348. 
Holacanihus luteolus (Parkinson) Cuvier <& Valenciennes, ibid., p. 198. 
Holacanihus cyanotis CiiUithor, Brit. Mus. Catal. Fish., ii, 1860, p. 517 ; id., Fisch. d. Sudsee, 
pt. 2, 1874, p. 52, pi. xl, fig. A. ; Ogilby, Mem. QueensL Mus., i, 1912, p. 54. 
Holacanihus monophthalmus Kner, Sitz. Akad. Wien, Ivi, 1867, p. 714, fig. 2 (juv.) ; id., ibid., 
Ivii, 1868, p. 10. 
Holacanihus ocularis Pc'ters, Mon. Akad. Berlin, 1868, p. 147. 
Holacanihus sphynx de Vis, Proc. Linn. Soc. N. vS. Wales, ix, pt. 3, 29 Nov. 1884, p. 457. 
Type localities: — Ullie Island, Caroline Group (flavissinms) ; Tahiti, 
Society Group {luteolus) ; Aneiteum, New llelnudes Group {cyanotis) ; Eaiatea, 
Society Group {monophihatimis) : South Sea {ocularis) ; Coast of Queensland 
-{sphynx) . 
Depth of body 1*8 in its length; dorsal contour slightly more elevated 
than the ventral, its anterior profile from snout to nape evenly convex and 
decreasingly acclivous, thence rising slightly by a further convexity to the 7th 
dorsal spine, beyond whi('li it desi-ends iu a long gentle curve to the caudal 
