Chapter 24 



Holothurians of Enewetak Atoll 



BERTHA M. CUTRESS* and FRANCIS W. E. ROWEf 



'Department of Marine Sciences, University of 

 Puerto Rico, Mayagiiez. Puerto Rico 00708 

 fThe Australian Museum 

 Si>dnev. N.S.W., 2000 Australia 



INTRODUCTION 



Most of the species of holothurians recorded in the 

 checklist (Table 1) that follows were included in an 

 unpublished systematic report by B. M. Cutress prepared 

 for the Mid-Pacific Research Laboratory in 1956. Collec- 



tion records based on that study are presented in the 

 Appendix. Except for a short paper on Labidodemas sem- 

 perianum by Cherbonnier (1970) and another on Thelenota 

 anax by Lamberson (1978), the scant published literature 

 on holothurians of Enewetak is nonsystematic. 



Hartman (1954) reported the pxslynoid, Gastrolepida 

 clauigera, as a symbiont on Stichopus horrens and 

 Holothuria gi/rifer (H. hilla) at Enewetak Atoll. Pomeroy 

 and Kuenzler (1967) included H. (Halodeima) atra and 

 H. (Platx^perona) difficilis among faunistic comp)onents at 

 Enewetak examined for the excretion and turnover time of 

 phosphorus. Reish (1968) noted that Gastrolepida clauigera 

 was found on H. atra, H. gvrifer (H. hilla), Actinopnga 



TABLE 1 

 Checklist of Enewetak Holothurians 



Phylum ECHINODERMATA 

 Class HOLOTHUROIDEA 

 Order DENDROCHIROTIDA 

 Family CUCUMARIIDAE 



Afrocucumis africana (Semp)er); Lawrence, 1980; Lawrence and GuiUe, 1982. 

 Order ASPIDOCHIROTIDA 

 Family HOLOTHURIIDAE 



Actinopvga mauritiana (Quoy and Gaimard): Bakus, 1968, 1973; Lawrence, 1980; 

 Lawrence and Guille, 1982. 

 ■fActinopyga ?mauritiana juvenile. 

 'Bohadschia argus Jaeger, 1883. 

 'Holothuria (ThymiosvcJu) arenicoh Semper, 1868. 

 Holothuria (Halodeima) atra Jaeger: Pomeroy and Kuenzler, 1967; Bakus, 1968, 1973; 



Webb et al., 1977; Ebert, 1978; Lawrence, 1980; Lawrence and Guille, 1982. 

 Holothuria (Platvperona) difficilis Semper: Pomeroy and Kuenzler, 1967; Bakus 1968, 



1973; Lawrence, 1980; Lawrence and Guille, 1982. 

 Holothuria fThymiosyciq) hilla Lesson: Bakus, 1968; Lawrence, 1980; Lawrence and 



Guille, 1982. 

 'Holothuria (Thymiosycici) impotiens (Forsskal), 1775 

 Holothuria (Mertensiothuria) leucospilota (Brandt): Bakus, 1968, 1973; Smith et al., 



1973; Lawrence, 1980; Lawrence and Guille, 1982. 

 'Holothuria (Mertensiothuria) pervicax Selenka, 1867. 

 Labidodemas semperianum Selenka: Cherbonnier, 1970. 

 'Labidodemas ?semperianum, juvenile. 



'New published Enewetak record. 

 fVery small specimen. 



(This table continued on next page.) 



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