Chapter 6 



Sea Anemones of Eneivetak Atoll 



CHARLES E. CUTRESS* and A. CHARLES ARNESONf 



'Department of Marine Sciences. (Jniuersify of Puerto 

 Rico, MavagiJez. Puerto Rico 00708 

 fScripps Institution of Oceanography. 

 La Jolla. California 92093 



INTRODUCTION 



The sea anemones covered in this chapter were col- 

 lected and/or photographed In part by Cutress during May 

 and June 1955 and in part by Arneson from September 

 through November 1980. Collection records are shown at 

 the end of the chapter. Most identifications were made 

 from preserved specimens, but a few were made from pho- 



tographs alone. Available photographs of Ph[^manthus 

 strandesi and Pfiysofarachia douglasi axe inadequate. 

 Heterodact\/\a hemprichi was not photographed. 



No published taxonomic work on Enewetak sea 

 anemones exists. Dunn (1981), in a revision of the clown- 

 fish anemones, refers by catalog numbers to preserved 

 specimens from Enewetak which she examined. Allen 

 (1972) refers to and illustrates seven species of host 

 anemones that he observed at Enewetak from 1968 to 

 1971. Josephson (1966) made physiological observations 

 on Calliactis polijpus, and Johannes ct al. (1972) refer to 

 an unidentified digging anemone subsequently identified as 

 Actinodendron plumosum. Table 1 provides a checklist of 

 Enewetak sea anemones. 



TABLE 1 

 Checklist of Enewetak Sea Anemones 



Phylum CNIDARIA 

 Class ANTHOZOA 



Order CORALLIMORPHARIA 

 Family ACTINODISCIDAE 



Actinodiscus r\eglectus (Fowler, 1888) 

 Rhodactis howesii Saville-Kent, 1893 

 Order ACTINIARIA 



Family EDWARDSIIDAE 



Edwardsia pudica Klunzinger, 1877 

 Edwardsia gilbertensis Carlgren, 1931 

 Family BOLOCEROIDIDAE 



Bunodeopsis medusoides (Fowler, 1888) 

 Family ALICIIDAE 



Triactis producta Klunzinger, 1877 

 Family ACTINIIDAE 



Anthostella badia (Carlgren, 1900) 



Anthopteura nigrescens (Verrill, 1928) 



Phvsobrachia douglasi Saville-Kent, 1893: Allen, 1972, pp. 91, 166, 167, 169, 173, 177, 179 Fig. 95, 183, 227, 



229, 252, 256, I: Entacmaea quadricolor (Rueppel and Leuckart) [pro parte], Dunn, 1981, p. 15, 27. 

 Actiniogeton sesere (Haddon and Shackleton, 1893). 

 Family ACTINODENDRONIDAE 



Actinodendron plumosum Haddon, 1898; Johannes et al., p. 542. 



Actinodendron glomeratum Haddon, 1898 



Megalactis hemprichii Ehrenberg, 1834 ^j^.^ (3^,,^ ^^„i;„^^a ^n next page.; 



S3 



