92 U.S. NATIONAL MUSEUM BULLETIN 2 02 Vol. 3 



branched caudal rays 5 + 5; gill rakers 27 on first gill arch; teeth 8 

 upper, 6 lower. 



Depth of body 1.9; length of head 2.85, both in standard length. 

 Snout 1.1; diameter of eye 3.65; least depth of caudal peduncle 1.85; 

 length of pectoral fin 2.15; length of longest dorsal ray 2.65; length of 

 longest anal ray 2.75; length of middle caudal rays 3.4; length of soft 

 dorsal fin base 1.05; length of anal fin base 1.3; length of dorsal spine 

 1.15; interorbital width 3.3; post orbital part of head 5.7; length of 

 gill opening 2.6; all in length of head. Angle of snout profile with 

 lengthwise axis of body 48 degrees; snout profile concave. 



Interorbital area elevated, rounded; dorsal spine long, 2 rows of 

 small sharp spines on anterior face and 2 rows on posterior side; 

 slightly larger dorsal spine inserted above middle of eye ; pelvic spine 

 well developed, not moveable, 10 radiating spines, 2 directed an- 

 teriorly, 2 posteriorly, 3 on each side; scales of anterior sides with a 

 single vertical row of 4 or 5 slender spines, a patch of strong simple 

 long spines in middle of sides below posterior half of dorsal fin extend- 

 ing to anterior edge of caudal peduncle; caudal peduncle completely 

 covered with many short strong spines; dorsal and anal fins evenly 

 rounded, caudal fin rounded, fan-shaped. 



Color in alcohol. — Head and body light greyish brown; margin of 

 lips pale, area around mouth blackish; posterior third of body paler 

 than head; spines on middle of sides and caudal peduncle black, tips 

 pale; spiny dorsal membrane dusky brownish; dorsal and anal fins 

 pale, their rays blackish basally; caudal fin black; pectoral fin pale. 



AMANSES SANDWICHIENSIS (Quoy and Gaimard) 



Plate 135,C 



Balistes sandwichiensis Quoy and Gaimard, Voyage autour du monde . . . 

 sur . . . VUranie et la Physicienne, Zoologie, p. 214, 1824 (type locality, 

 Sandwich Islands). 



SPECIMENS STUDIED 



Bikini Atoll: 4 stations, 10 specimens, 53 to 128 mm. in standard length. 

 Eniwetok Atoll: 1 station, 1 specimen, 88 mm. 

 Rongelap Atoll: 2 stations, 3 specimens, 51 to 67 mm. 

 Kwajalein Atoll: 1 station, 2 specimens, 60 to 72 mm. 



Description. — Dorsal fin rays 1,33 to 36, usually 34 or 35; anal 

 rays 29 to 32, usually 30; pectoral rays 13 or 14, usually 13; branched 

 caudal rays 5 + 5; gill rakers on first arch 33 to 44. Teeth 8 upper, 6 

 lower. 



Depth of body 1.85 to 1.95; length of head 2.65 to 3.0; both in 

 standard length. Snout 1.1 to 1.3; diameter of eye 3.6 to 4.5; 

 least depth of caudal peduncle 2.5 to 2.9; length of pectoral fin 2.3 to 

 2.5; length of longest dorsal ray 2.1 to 3.1; length of longest anal ray 

 2.4 to 3.4; length of middle caudal fin rays 1.4 to 1.8; length of soft 



