NO. 3582 GENUS ENTOMACRODUS — SPRESTGER 103 



E. s. stellifer, from which it differs obviously in the disposition of its 

 lip crenulae and in having more and shorter supraorbital cirri, fewer 

 vertebrae, and paired pores included in the preopercular series; 

 E. deciissatus, from which it differs obviously in the disposition of 

 its lip crenulae and in havmg a smaller eye at comparable SL's, 

 usually fewer vertebrae, gill-rakers, and dorsal and anal segmented 

 rays; E. striatus, from which it differs obviously in the disposition of 

 its lip crenulae and in having paired pores included in the preopercular 

 series and more predorsal commissural pores at comparable SL's; 

 E. cymatobiotiis, from which it differs obviously in the disposition of 

 its lip crenulae and in having paired pores included in the preopercular 

 series, usually more gill-rakers and pale stripes and dusky bands on 

 the upper lip ; E. niuafoouensis, from which it differs obviously in the 

 disposition of its lip crenulae and in having only one pore before 

 each anterior nostril, shorter supraorbital cirri, and fewer gill-rakers; 

 E. epalzeocheilus, from which it differs obviously in the disposition 

 of its lip crenulae and in having only one cirrus on each side of the 

 nape and one pore before each anterior nostril; and E. rofeni, from 

 which it differs in the disposition of its lip crenulae and in having 

 paired pores included in the preopercular series, fewer segmented 

 anal rays, vertebrae, and more predorsal commissural pores. 



Distribution (fig. 9). — Entomacrodus sealei is known only from 

 the islands of the western and central Pacific Ocean. Collection 

 data indicate that this species occurs on the outer (ocean) sides of 

 reefs along open or surge channels. 



Material. — Marcus Island: BPBM 2458 (holotype of E. sealei); Marianas, 

 Guam: USNM 111881, 123934; Saipan: SU 62055, 62077, USNM 111882; 

 Carolines, Ifaluk: SU 62039, 62052; Kapingamarangi: SU 62029; Marshalls, 

 Bikini: USNM 142188 (holotype of E. incisolabialus) , 142189; Phoenix Group, 

 Phoenix Island: USNM 198140; McKean: USNM 198593; Jarvis: USNM 198653; 

 Swains: BMNH 1943.8.23.3, USNM 147654; Samoa, Tutuila: USNM 111883; 

 Maiden: USNM 199457; Tuamotus, Raroia: SU 62012, 62016, 62019, 62022. 



Entomacrodus corneliae (Fowler) 



Plate 19 

 Giffordella corneliae Fowler, 1932a, Proc. U. S. Nat. Mus., vol. 80, no. 6, pp. 14-15 

 (near light, Nuku Hiva, Marquesas Islands]. 



Description. — Segmented dorsal fin rays 13-15 (13 only in holo- 

 type); segmented anal fin rays 16-17; posteriormost anal pterygio- 

 phore supporting 1 or 2 external elements (supporting 1 in 4 of 11 

 specimens); total gill-rakers on first arch 16 or 17; pseud obranchial 

 filaments 5 or 6 ; vertebrae 34 ; supraorbital cirri 3-6 (too few specimens 

 available to determine if cirri or predorsal commissural pores increase 

 in number with increase in size) ; main or longest supraorbital cirrus 

 with all branches mesially; nape with 1 cirrus on each side; predorsal 



