626 
BULLETIN OF THE UNITED STATES FISH COMMISSION. 
Cantherines sandvichensis (Quoy & Gaimard). 
One yonng specimen taken with tangles at station 4163, vicinity of Bird Island, depth 24 to 40 
fathoms. 
Sides somewhat blotched with light and dark, the dark markings assuming form of faint bars on 
head, and at base of dorsal and anal fins; dorsal containing 36 rays, anal 32. 
Family CANTHIGASTERIDAJ. 
Canthigaster cinctus (Richardson). 
Three specimens of this conspicuously colored species were dredged in shallow water about the 
islands. 
Head 40 hundredths of total length without caudal; depth of caudal peduncle immediately behind 
anal fin 24; length of snout 26; interorbital width 10; diameter of orbit 12; length of gill-slit 7, not 
descending to level of iower pectoral rays; longest pectoral ray 15; height of dorsal 17; length of 
caudal 31. D. 10; A. 9; P. 17. 
Back compressed; interorbital space gently concave; upper profile of snout longitudinally gently 
concave; entire body and head, except extreme tip and lower side of snout, covered with very 
short slender spines; nostril minute, consisting of a very short open tube, scarcely discernible without 
the aid of a lens; caudal fin gently convex, with the outer rays slightly produced. 
Color in life light olivaceous; back with 4 broad brownish black bars directed downward and for- 
ward; one covers the back of caudal peduncle save a narrow space immediately behind dorsal fin, and 
narrows downward, its pointed lower end below axis of body and beneath front of dorsal; the second 
bar includes base of dorsal and an area in front of fin, narrowing to a point below middle of sides; the 
third bar crosses nape and ends at upper limit of base of pectoral fins; the fourth covers posterior half 
of interorbital space; upper and lower margins of caudal fin brownish black; snout dusky; the top and 
sides of head and the light intervals between bars covered with light yellow spots (not bluish, as given 
by Vaillant and Sauvage), which are usually roundish, and smaller than pupil; these sometimes arrange 
themselves in lines bordering the dark bars, those about eye frequently coalesce to form longitudinal 
streaks, and those on lower part of cheeks may unite to form a lengthwise, more or less broken line; 
there may be a line also bordering gill-slit anteriorly. 
Specimens were taken at the following stations: Nos. 3850, off the south coast of Molokai, 43 to 
66 fathoms; 4071, off the north coast of Maui, 52 to 56 fathoms; 4128, vicinity of Kauai, 68 to 90 
fathoms. 
Tetroclon ( Anosmius ) coronatus Vaillant & Sauvage, Revue et Mag. de Zool. (3) III, 1875, 286. 
Family OSTRACIID^. 
Aracana spilonota, new species. Fig. 242. 
Type, 94 mm. long, from station 3939, vicinity of Laysan Island, depth 59 to 163 fathoms; type, 
No. 51630, U. S. Nat. Mus. 
Head 31 hundredths of total length without caudal; greatest depth 44; greatest width (without 
spines) 50; width of lateral face 38; width of dorsal face 21; length of free portion of tail 19; length of 
snout 24; width over middle of eyes 18; diameter of orbit 16; length of gill-opening 5; longest pectoral 
ray 19; longest dorsal ray 15; longest caudal ray 23. I). 10; A. 9; P. 12; C. 11. 
Body with 6 ridges, including a low ridge on each lateral face; no mid-dorsal or mid-ventral crest; 
a pair of strong spines near middle of dorsal ridges, and a corresponding but smaller pair near middle 
of ventral ridges, both compressed and slightly hooked backward; no other spines on body, but a 
series of low prominences along ventral ridges, which may develop into spines in other specimens; the 
body plates exhibit 5 to 7 low ridges radiating from center, each ridge with a series of small granules; 
abdominal plates with more prominent granules, but much less rough than in A. aculeata (Houttuyn); 
free portion of tail wholly invested with small movable plates, which cover lateral portions as fully as 
upper or lower sides; dorsal face gently convex, interorbital space strongly concave, upper profile of 
snout perfectly straight; breast not gibbous; eyes large, their diameter greater than distance separating 
