434 BULLETIN OF THE UNITED STATES FISH COMMISSION. 
This species is known from the type, No. 50885, U. S. N. M. (field No. 2561), 3.75 inches long, 
obtained by ns at Honolulu in 1901, a second specimen recently received from Mr. Berndt at Honolulu, 
and from numerous specimens obtained by Doctor Jordan at Samoa. 
Tropidichthys psegma Jordan & Evermann, Bull. U. S. Fish Comm., XXII, 1902 (July 9, 1903), 209, Honolulu. 
356. Canthigaster janthinus (Vaillant & Sauvage). 
Dorsal with 13- rays; head without nasal tentacles; snout 2.5 in head; back rounded; profile not 
steep, convex, gradually merging into the dorsal outline; body without spines, except the ventral 
pouch, which is furnished with short,, strong spines; caudal fin as long as caudal peduncle. 
Body slate color, some black blotches between pectoral and eye; a few large rounded black blotches 
at' intervals along the upper part of ventral pouch; upper part of pectoral black; caudal and dorsal 
stronger in color; anal transparent. 
Hawaiian Islands; not seen by us. Known only from the record by Vaillant and Sauvage. 
Tetraodon (Anosmius) janthinus Vaillant & Sauvage, Rev. Mag. Zool. (3d series), III, 1875, 286, Hawaiian Islands. 
357. Canthigaster epilamprus (Jenkins). “Puu olai.” Fig. 190. 
Head 2.8 in length; depth 2.7; eye 3.6 in head; snout 1.6; interorbital 3.5; D. 10; 0. 10; P. 17. 
Body oblong, compressed; head long, snout pointed, its sides flattened; mouth small, the teeth 
strong, convex, meeting in a produced point at the center; eye high up, the supraobital rim prominent; 
interorbital space concave; anterior profile from , tip of snout to occiput nearly straight; caudal 
Fig. 190 . — Canthigaster epilamprus (Jenkins); from the type. 
peduncle compressed and deep, its depth 2.25 in head; gill-opening vertical, its length less than diam- 
eter of eye; nostril small, perforate, not in a projecting tube. 
Body chiefly smooth on sides and caudal peduncle; dorsal region between eyes and dorsal fin 
with small, sharp prickles; a similar patch on lower part of cheek and belly; snout and interorbital 
region naked; lower jaw naked; posterior part of body and caudal peduncle naked; fins moderate; 
dorsal with the anterior rays longest, the free edge oblique, nearly straight, height of fin 2 in head; 
anal pointed, its length about 2.8 in head; caudal truncate, its length 1.3 in head; pectoral broad, little 
oblique, its length 2.6 in head. 
Color in alcohol, pale brownish above, paler on sides and belly; a large blackish area on side 
below base of dorsal; cheek and entire body covered with small roundish brown spots; 2 dark-brown 
lines on cheek under eye; 2 or 3 similar lines radiating backward from eye and 2 others running 
