102 



DEVANEY AND BAILEY-BROCK 



TABLE 1 (cont'd) 



Family TEREBELLIDAE (cont'd) 

 Thetepus sp.: Reish, 1968. 

 tercbellid sp : Bailey-Brock et al , 1980. 

 Family SABELLIDAE 



Euchone eniwetokensis Reish, 1968: Reish, 1968. 

 Notaulax phaeotaenia (Schmarda, 1861). 



Hypsicomus phaeotaenia [sic]: Hartman, 1954; Reish, 1968. 

 Megalomma trioculatum Reish, 1968: Reish, 1968. 

 Sabella notata Grube, 1878: Hartman, 1954; Reish, 1968. 

 sabellid sp : Bailey-Brock et al., 1980. 

 Family SERPULIDAE 



Hvdroides a/biceps (Grube, 1870). 



Eupomatus albiceps Grube: Hartman, 1954; Reish, 1968. 

 Pomatostegus stellatus (Abildgaard, 1789): Bailey-Brock unpubl. 

 Filograna implexa Berkeley, 1835. 



Salmacina dysteri (Huxley, 1855): Young, 1969. 

 Salmacina incrustans Clarapede, 1870: Reish, 1968. 



Salmacina sp.: Hartman, 1954. 

 Serpula hartmanae Reish, 1968: Reish, 1968. 



Serpula sp.: Hartman, 1954. 

 Spirobranchus giganteus (Pallas, 1766): Hartman, 1954; Reish, 1968. 

 Vermi/iopsis glandigerus Gravier, 1906: Reish, 1968; Bailey-Brock et al., 1980. 



Vermi/iopsis sp.: Hartman, 1954. 

 serpulid sp.: Bailey-Brock et al., 1980. 

 Family SPIRORBIDAE 



Neodexiospira brasiliensis (Grube, 1872); Knight-Jones, 1984. 



Spirorbis belluhs Bush [sic]: Young, 1969. 

 Vinearia koehleri (Caullery and Mesnil, 1897); Knight-Jones, 1984. 



Spirorbis (Pileolaria) n. sp.: Young, 1969. 

 spirorbids, dextral: Hartman, Reish, 1968. 

 spirorbids, sinistral: Hartman, 1954; Reish, 1968. 

 spirorbid sp.: Bailey-Brock et al., 1980. 



by this group. Highsmith indicated that most of the 

 polychaetes found in association with the corals were 

 "nestlers" rather than bioeroders (borers). Eunicids and syl- 

 lids were most numerous among the polychaete families, 

 with the former having a far greater biomass. Polychaetes, 

 together with sipunculans, were found to be the most com- 

 mon invertebrates associated with rubble in Highsmith's 

 study. Six identified eunicids, two dorvilleids, including one 

 new Enewetak record and one lysaretid, were among the 

 species enumerated, together with undetermined members 

 from other families. The family Aphroditidae was recorded 

 for the first time from Enewetak in that paper, but no gen- 

 era or species was listed. A great deal of work on the 

 annelids of Enewetak remains to be done. This is espe- 

 cially true of the soft bottom in the lagoon where this 

 fauna has yet to be investigated to any extent. 



One hundred thirty-two polychaete species have been 

 identified from Enewetak Atoll. Of them, 52 species (40%) 

 are also found in the high Hawaiian Islands (Bailey-Brock 

 and Hartman, 1984) and 43 (33%) are known from the 

 Solomon Islands (Gibbs, 1971). Twenty-seven Enewetak 

 species occur on the shallow coral reefs of Sumatra and 



Thailand, and 20 are from Easter Island, representing 21 

 and 15%, respectively (Kohn and Lloyd, 1973a, b). Col- 

 lections from Heron Island reefs off Australia (Reichelt, 

 1979) comprised mostly errant polychaetes (Eunicidae and 

 Syllidae) and shared only 10% of the species with 

 Enewetak. All these collections were from similar 

 habitats — hard substrata of shallow coral reefs — except for 

 Reichelt's, which was restricted to the infauna of sand and 

 rubble from underneath small coral boulders. These 

 numbers suggest faunal similarities of Enewetak 

 polychaetes with both the Solomon and Hawaiian Islands. 

 The high number for Hawaii probably reflects more inten- 

 sive sampling and research there than elsewhere in the 

 tropical Pacific. It is expected that the similarity between 

 Enewetak and west Pacific locations will increase as the 

 polychaetes from those areas become better known. 



Among the Enewetak polychaetes, two syllid species 

 (Haplos\^llis spoirigicola and Exogone verugera] and two eun- 

 icids (Nematonereis unicornis and Palola siciliensis) have 

 been found at the Indian and Pacific Ocean locations 

 mentioned above. Other species with broad Pacific 

 distributions are the amphinomid Eur\/thoe complanata. 



