FISHES OF HAWAIIAN ISLANDS. 
443 
365. Ostracion oahuensis Jordan & Evermann. “Moamoawaa." Plate 51. 
Head 3.9 in length; depth 2.9; eye 2.9 in head; snout 1.2; preorbital 1.6; interorbital 1; D. 9; 
A. 9; P. 10; C. 10. 
Body 4-sided; dorsal side of carapace evenly convex, its greatest width one-fourth greater than 
head; lateral dorsal angles not trenchant, slightly convex anteriorly, then evenly convex; snout blunt, 
the anterior profile ascending abruptly then strongly convex in front of eyes; interorbital space nearly 
flat; cheek flat; side of body concave, its width about equal to head; ventral keel prominent, evenly 
convex; ventral' surface nearly flat posteriorly, but little convex anteriorly, its greatest width 1.4 times 
length of head, its length just twice its width; gill-opening short, not exceeding two-thirds diameter 
of eye; least width of anterior opening of carapace 1.75 in interorbital, or 1.5 times diameter of orbit, 
the depth nearly twice orbit; mouth small; teeth rich brown; least depth of posterior opening of 
carapace much less than width of anterior opening, equaling distance from lower edge of preorbital to 
pupil; length of caudal peduncle less than that of head, its depth 2.2 in its length; no spines anywhere. 
Dorsal tin high, its edge obliquely rounded, its length 1.3 in head; anal similar to dorsal, the edge 
rounded, its length 1.2 in dorsal; caudal slightly rounded, its rays nearly equal to head; pectoral with 
its free edge oblique, the rays successively shorter, length of fin equal to height of dorsal. 
Color in life, dark brown with blue tinges; interorbital space showing more or less golden; small 
whitish spots profusely covering entire dorsal surface; no spots on side of body or on face; no spots on 
ventral surface, except a faint one of a slightly darker color than general gray color of surface; one 
longitudinal row of golden spots on each side of upper part of caudal peduncle from carapace to base 
of caudal fin; pectoral, anal, and dorsal tins with transverse rows of faint spots; caudal bluish black at 
base, white on posterior half; a broad light or yellowish area below eye; iris golden. 
Color in alcohol, rich brown above, the sides darker, and the ventral surface paler, brownish 
about margins, dusky yellowish within; entire back with numerous small, roundish, bluish-white spots; 
upper half of caudal peduncle with similar but larger spots; forehead and snout dark brown; lips 
brownish black; cheek dirty yellowish; sides and ventral surface wholly unspotted; base of caudal 
blackish, paler distally, the dark extending farthest on outer rays; other fins dusky, with some obscure 
brownish spots. 
This species is related to O. sebse Bleeker, from which it differs in the smaller, more numerous 
spots on back, the entire absence of spots on side, the smaller size of the spots on the caudal peduncle, 
and the brighter yellow of the suborbital region. 
The type and 1 cot vpe were obtained by us at Honolulu where other specimens were later collected 
by the Albatross. One example was obtained by Doctor Wood. Our specimens are 5 to 6 inches long. 
Ostracion oahuensis Jordan & Evermann, Bull. l T . S. Fish Comm., XXII, 1902 i April 11, 1903), 200, Honolulu (type, No. 50668, 
U. S. N. M.); Jenkins, op. cit. (Sept. 23, 1903), 487; Snyder, op. cit. (Jan. 19, 1904), 535. 
366. Ostracion lentiginosum Bloch & Schneider. “Oopakaku.” 
Head 4 in length; depth 3; eye 2.8 in head; snout 1.25; preorbital 1.9; interorbital 1.2; D. 9, 
sometimes 7; A. 9; C. 10; P. 10. 
Body 4-sided; dorsal surface moderately rounded, the lateral dorsal angles not sharp, uniformly 
convex, except at extreme anterior and posterior ends, where each is slightly concave; greatest width of 
dorsal surface one-fourth greater than length of head, there being 10 hexagonal plates in a transverse 
series; 3 plates posterior to dorsal fin; side Concave, its greatest depth about 1.2 in head; ventral sur¬ 
face evenly convex, its sides uniformly curved, its greatest width 1.6 times length of head, its length 
3 times head, about 10 plates in a transverse series, one plate behind anal fin; anterior opening of car¬ 
apace narrow, its greatest width less than orbit; mouth small, the teeth brown; anterior dorsal profile 
concave to front of eyes, then strongly convex; interorbital nearly flat; least depth of posterior open¬ 
ing of carapace equal to width of anterior opening, its greatest width a trifle greater than depth of 
preorbital; length of caudal peduncle equaling head, its depth 2 in its length; dorsal fin high, its rays 1.6 
in head; anal similar, equally high, its distal edge rounded; caudal broad, rounded, its length nearly 
equaling that of head; pectoral with its distal edge oblique, the longest rays about as long as caudal. 
Color in life of an example (No. 03527), 3.25 inches long, gray, covered all over carapace on all 
sides, including head, with small white spots; similar spots all over caudal peduncle and on basal half 
