FISHES OF HAWAIIAN ISLANDS. 
651 
First dorsal spine much produced and filamentous, extending to or slightly beyond base of last 
dorsal ray; second spine short, not reaching origin of soft dorsal when depressed ; third and fourth 
spines rapidly and equally shortened; neither soft dorsal nor anal elevated; last anal ray reaching when 
declined to or nearly to caudal base; soft dorsal inserted more anteriorly, so that its last ray fails to 
reach caudal; caudal fin pointed, but with none of its rays produced or filamentous; membrane of 
inner ventral ray joining base of pectoral at end of its upper fourth; ventrals reaching vent; pectorals 
to base of second anal ray. 
Color in life, back with 4 bright red bars extending nearly to middle of sides, the first bar broad, 
occupying nape and base of spinous dorsal; the second broader, underlying anterior half of soft 
dorsal; the third less than half the width of the second, located under last dorsal rays; the fourth, 
on caudal peduncle, again wider; lower half of sides marked with 4 irregular brownish black blotches, 
each forming a downward continuation of one of the red bands, the anterior blotch very small, the 
second the largest, the spaces between these dark blotches pearly white; a dark blotch in the middle 
of the lower caudal rays, a smaller one near tips of rays, 2 very narrow blue bands near middle of fin; 
anal black throughout; a small black spot in axil of ventral fins; dorsals whitish, unmarked; upper 
surface of head, including upper half of eye but not snout, reddish; lower parts whitish. 
Two specimens here designated as cotypes, of about equal size with the type, were taken at 
station 3847, off the south coast of Molokai, at a depth of 23 fathoms. These have the following fin- 
formulas: Dorsal iv-8, anal 7; dorsal iv-9, anal 8. 
The species was taken at stations Nos. 3847, off the south coast of Molokai, 23 fathoms, and 3876, 
channel between Maui and Lanai, 28 to 43 fathoms. 
C alliur ichthy s decoratus, new species. Plate 90. 
Type, $, 183 mm. long (91 mm. long to base of caudal), from station 4032, Penguin Bank, off 
the southern coast of Oahu, 27 fathoms; type No. 51609, U. S. Nat. Mus. 
Closely related to C. japonicus (Houttuyn), but distinguished from that and all other known species 
by the fin-formula, the presence (in the male) of a single filamentous dorsal spine, and the remark- 
ably beautiful decoration of the throat and branchiostegal membranes. The caudal is exceedingly 
elongate, as in C. japonicus. 
Length of head (measured to opercular margin) 30 hundredths of total length without caudal; 
depth'll; width at base of pectorals 20; length of snout 10; diameter of eye 7.5; length of maxillary 
8; distance between branchial pores 10; distance from tip of snout to first dorsal spine 26; length of 
first dorsal spine 50; length of second dorsal spine 13; distance between dorsals 7; length of caudal 
104; longest ventral ray 28; longest pectoral ray 22. D. vi-9; A. 8; P. 20. 
Snout short, declivous, as in C. japonicus; maxillary barely reaching vertical from front of orbit; 
teeth in narrow villiform bands in jaws only; eyes large, 3g in head measured to branchial pore, sepa- 
rated only by a sharp bony interorbital ridge which has no trace of a lengthwise groove; occipital region 
