636 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.xxiv. 
with a broad bluish band from the snout, below the eye, bent down- 
ward across the operculum and suboperculum; several other oblong 
spots above this band; a crescent on the interoperculum and the 
margin of the suboperculum bluish; an oblique white streak from the 
axil to the bell3\ Each scale with a bluish vertical streak; a dark 
brown spot near the root of the caudal, above the lateral line; some- 
times one or two other brown spots on the side of the bod3^ Dorsal 
with three, anal with two longitudinal lines, which are whitish in 
spirits; a small black spot superiorilj^ in the axil. (Giinther.) 
This species is represented in the Imperial Museum by a specimen 
from Riukiu. 
{tres, three; macidatus, spotted.) 
16. HALICHCERES^ Ruppell. 
Halichceres Ruppell, Neue Wirbelthiere Fische, 1837, p. 16 {himaculatus, not 
Halichcerus Nilsson, 1820, a genus of seals). 
Ichthijcallus'' Swainson, Nat. Hist. Classe Fishes, II, 1839, p. 232 {dimidiatus). 
Choerojidis GihL, Proc. Ac. Nat. Sci. Phila., 1862, p. 142 (substitute for Halichceres, 
regarded as preoccupied). 
ParajuUs Bleeker, Enum. Poiss. de Japan, 1879, p. 5, {poecilopterus, no definition. ) 
Iridio Jordan and Evermann, Check List Am. Fishes, 1896, p. 412 {7'ad'iatus). 
Body oblong, compressed, not elevated, covered with large scales, 
there being 25 to 30 in the course of the lateral line, which is not inter- 
rupted, but bent abruptly behind; scales on breast a little smaller. 
Head scaleless, compressed conic; preopercle entire. Teeth large, two 
to four strong canines in front of each jaw, a j)osterior canine tooth. 
Tin rays usuallv D. IX, 11; A. Ill, 11; fins low; caudal lunate, trun- 
cate or rounded; ventrals inserted under axil of pectoral. Gill-rakers 
short and feeble; gill membranes slight!}^ joined to the narrow isthmus; 
no scaly sheath at base of dorsal. Vertebra 10+15 = 25. Species 
numerous, of rather small size and gay coloration, the t^'pical species 
(with canines f ) all belonging to the East Indies and Polynesia, those 
with canines f {IchfJiycallu.'<) being all American. 
(^Ag, sea; jlfofpo?, pig). 
I. Halichceres: canines f. 
a. Dorsal spines relatively firm and low, the longest 3 in head; depth SJ in length; 
anterior canines strong, dorsal rays IX, 14; anal rays IX, 14; males with a 
brownish lateral band, a large brown spot near end of pectoral; head with light 
blue markings; female with a blackish lateral band and a similar dark streak 
above it at base of dorsal extending forward to snout, besides several lines of 
dark spots pcecilopterus, 29. 
^ Platyglossus (Klein) Bleeker {manjlnatus), differs from HaUclucres in the presence 
of a scaly sheath at base of dorsal. 
^The first species named under Ichthycallus {dimidiata) belongs to the group called 
Iridio. The name Ichthycalhts may be restricted to that species and its affinities, 
replacing Iridio, if this subgenus (composed of American species with the canines f) 
is deemed worthv of recognition. 
