NO. 3582 GENUS ENTOMACRODUS — SPRINGER 85 



epalzeocheilus, E. niuafoouensis , E. randalli, and E. marmoratus. 

 The latter species are trenchantly different from E. striatus but are 

 similar in having the ventral margin of the upper lip completely 

 crenulate. In body form all these species attain a rather large size 

 (over 85 mm SL) and have a rather robust body form, possibly a 

 function of size. In addition, all have a well-developed, slender, 

 elongate, dark mark just posterior to the orbit. E. striatiLS differs 

 from all of the related forms except possibly E. randalli in having 

 fewer predorsal commissural pores at any given size. It also differs 

 from the other members of its group in always having the preopercular 

 pore positions with simple pores. In addition, if differs: from E. 

 epalzeocheilus and E. niuafoouensis, in usually having cirri on the 

 lateral margin of the main supraorbital cirrus and in having a single 

 pore before each anterior nostril; from E. epalzeocheilus and E. 

 marmoratus, in having simple nuchal cirri; from E. niuafoouensis 

 and E. randalli, in having fewer gill-rakers; and from E. randalli, in 

 having cirri on the lateral margin of the main supraorbital cirrus. 



Remarks. — Entomacrodus striatus has been collected with or from 

 the same restricted geographical area as all the other species and 

 subspecies of Indo-Pacific Entomacrodus, except E. strasburgi, E. 

 marmoratus, E. randalli, E. macrospilus, and E. chapmani, all of 

 which have very limited distributions. Differentiations of E. striatus 

 from the species not mentioned above can be made from the key and 

 by referring to the various tables. 



Distribution (fig. 7). — E. striatus is the most widely distributed 

 species of Entomacrodus, occurring from the eastern Indian Ocean to 

 Raroia, Tuamotus, in the Pacific Ocean. It ranges from 28°30'N 

 to 31°30'S latitude. It is primarily found in shallow tide pools and 

 near shallow reefs. 



Material. — indian ocean: India, Konival: SU 14737; Bombay: MNHN 

 i)96 (syntypcs of Salarias fraenatus) ; Vizagapatam: SU 14735, 14736; Ceylon: 

 BMNH 1903.5.12.3, SU 22855; Andaman Islands: SU 16449, USNM 195781; 

 Seychelles IsUinds: BMNH 1912.5.3.23-4; Praslin: BMNH 1908.5.14.27; Curieuse: 

 ANSP 102186; La Digue: RU (no number); Anonyme: ANSP 102182; Mahe: 

 ANSP 102188, 102192, RU (no number) ; St. Pierre: RU (no number); Mauritius: 

 MNHN A1796 (lectotype of Salarias striatus), B2525, 997; Madagascar, Tanikely : 

 USNM 199424; Cocos-Keeling Islands: BMNH 1949.11.29.604-618; Western 

 .\ustralia. Northwest Cape: WAM P.4654; Mozambique, Ibo: RU (no number); 

 Inhambane: RU (no number); South Africa, St. Lucia coast, North Zukiland: 

 ANSP 54995-97: Durban, Natal: ANSP 55161. 



SOUTH CHINA SEA! Hong Kong: SU 62069; Viet Nam, Nhatrang: SU 62047; Hot 

 flu Sud (near Poulo Cccir de Mer) : SU 62002; Gulf of Thailand, Goh Tao Island: 

 SU 62008; Goh Samet IsLand: SU 62006. 



PACIFIC ocean: Japan, Amami-Oshima: USNM 199816; Bonin Islands, Ototo- 

 •shima: UMMZ 144748; Wake Island: SU 50164; Marianas Islands, Guam: USNM 

 123953, 137770, 139839; Saipan: SU 62078, 62079, 62080, USNM 123855; Tinian: 

 USNM 124275; Marshall Islands, Rongerik Atoll, Bock Island: USNM 142176, 



