58 BULLETIN 18 0, UNITED STATES NATIONAL MUSEUM 



I identify our specimen as this species on the basis of Bleeker's figure. 

 52348, Apia, Samoa, Jordan aud Kellogg, 1 specimen. 

 Genus DANICHTHYS Bruun 



DanicMliys Bruun, Journ. Linn. See. London, Zool., vol. 39, p. 135, 1934. (Type, 

 Danichthys rmideletii Cuvier and Valenciennes.) 



DANICHTHYS GILBERTI (Snyder) 



Exonautes gWberti Snyder, Bull. U. S. Fish Conim., vol. 22 (1902), p. 522, pi. 7, 

 fig. 13, 1903. 



The two specimens listed below agree in most respects with the 

 type of gilbcrti Snyder; the dorsal fin of gilherti is a little more 

 in advance, origin is under the base of the second dorsal ray, and 

 the head and eye are a little smaller in gilherti. 



115276, latitude 10° N., longitude 165° W., April 20, 1939, 1 specimen, sailed on 

 Bushncll at night. This specimen has the following characteristics: Origin of 

 dorsal fin over the third anal ray, head 2.5 times in distance from tip of snout 

 to insertion of pelvic fins and 4.1 times in standard length ; insertion of pelvics 

 to base caudal fin 2.4 times in standard length ; eye four times in distance from 

 head to base of pelvics; pectoral rays 18, first two unbranched; dorsal 11, 

 anal 12 ; scales about 49 ; gill rakers 8+20 ; upper rays of pectoral blackisli but 

 the center of the fin is hyaline; wide submarginal black band distally on pec- 

 torals, the very rear edge of this fin hyaline ; caudal fin blackish no white margins ; 

 second, third and fourth rays of pelvics blackish in basal half. 



92584, Apia, Samoa, Jordan and Kellogg, 1 specimen. This specimen is inter- 

 mediate in color between the one described and D. gilbcrti (Snyder). The 

 dorsal rays are 11, anal 13. 



The following notes are taken from the type of D. gilherti (Snyder) : 

 Origin of dorsal fin over the anus, origin of anal under the second 

 dorsal ray ; head 2.8 times in distance from tip of snout to insertion 

 of pelvic fins and 4.7 times in standard length; insertion of pelvics 

 to base of caudal fin 2.5 times in standard length; eye 5.1 times in 

 distance from head to base of pelvics; pectoral rays 18; dorsal 10; 

 anal 10; scales 50; gill rakers 7 + 22; pectoral fin blackish, the color 

 more intense distally, posterior margin of pectoral hyaline; caudal 

 fin blackish the posterior margin hyaline; upper surface of pelvic 

 rays blackish. 



Order HETEROSOMATA 



Family BOTHIDAE 



An excellent key to this group or fishes is given by Norman (A 

 Systematic Monograph of the Flatfishes: Heterosomata, vol. 1, pp. 

 171-172, 1934), and with my limited number of specimens I can now 

 add nothing of importance. 



