FISHES OF HAWAIIAN ISLANDS. 
351 
interrupted under last dorsal ray, to reappear again 2 rows farther down, 18 pores in the first part and 
7 in the last; tubes of lateral line with very short branches. 
Dorsal spines soft and flexible, their length scarcely equaling snout; soft dorsal not elevated, the 
border of the entire fin uniformly rounded; anal similar to soft dorsal, its rays equaling snout; caudal 
truncate or very slightly lunate, the outer rays scarcely produced, their length 1.6 in head; pectoral 
longer, reaching origin of anal, 1.3 in head. 
Color of a nearly fresh specimen in formalin, deep lead-color, body and fins uniform, a leaden 
band across caudal; pectoral light yellowish, yellow at tip; terminal band of caudal pale lead-color; 
center of each scale darker lead-color; ventral pale; tip of opercle with a large blackish spot. 
Color in spirits, dark brownish, the edges of the scales paler; dorsal and anal dark brownish; 
caudal dusky; centrals and pectoral pale dusky. 
The collection contains but a single example (No. 03405), 6.5 inches long, obtained at Honolulu. 
This species occurs also in Samoa. 
Scarus dubius Bennett. Zool. Journ.. IV, 828. Xo. XIII, Art. Ill, 37. Oahu. 
Pseudoscams dubius, Gunther, Cat., IV, 229, 1862 (Sandwich Islands; Fiji Islands). 
279. Callyodon ahula (Jenkins). “ Ahuula “ 1‘anukunahd .” Fig. 152. 
Head 2.8 in length; depth 2.34; eye 6 in head; snout 2.7; preorbital 5; interorbital 3; D. ix, 10; 
A. in, 10; P. 14; V. i, 5; scales 2-24-6. 
Body short, deep, strongly compressed; dorsal profile rather strongly arched, slightly depressed 
in front of eyes; head rather deep; snout prominent, the lower jaw included; mouth small, entirely 
below axis of body; dental plates white, yellowish at base; no posterior canines; upper lip double its 
entire length, covering about half the upper dental plate; lower lip short, covering less than half lower 
dental plate; eye small, lower edge of orbit on body axis; caudal peduncle compressed, its depth 2.2 in 
head. 
Scales large, 4 rows in front of dorsal, a single row of 4 scales on cheek, behind which are 2 scales 
placed one above the other; posterior limb of opercle with 2 series, the anterior with 1 series of scales; 
lateral line interrupted under last dorsal ray and continued to base of caudal 2 rows lower down, the 
tubes somewhat wavy and little branched. 
Dorsal fin rather high, the spines soft and flexible, their length about equal to that of snout; soft 
dorsal scarcely higher; anal similar to soft dorsal; caudal fin slightly convex, the lobes rounded, 1.8 
in head; pectoral 1.4 in head; ventrals not reaching vent, 1.8 in head. 
Head, body, and fins uniformly brown, with reddish tinges brightest on fins and throat; base of 
caudal paler; no distinct markings anywhere. 
