54 



CUTRESS AND ARNESON 



TABLE 1 (cont'd) 



Family THALASSIANTHIDAE 



Heterodacti/la bemprichii Ehrenberg, 1834 



Crvptodendrum adhesiuum Klunzinger, 1877: Dunn, 1981, p. 13. 

 Family PHYMANTHIDAE 



Phymanthus strandesii Carlgren, 1900 

 Family STICHODACTYLIDAE 



Stichodactvla mertensii Brandt, 1835: Dunn (1981), p. 99: 



Stoicbactis giganteum (Forsskal); Allen 1972, pp. 102, 105, 124, 166, 173, 178 Figs. 93-94, 184, 190, 193, 

 194 Fig. 102, 196, 200, 206 Fig 105, 237 Fig. 123, 252, 254, 255, 258, 259, II 

 Heteractis aurora (Quoy and Gaimard, 1833): Dunn, 1981, pp. 57, 66: Radiantbus simplex (Haddon and Shackleton); 



Allen, 1972, pp. 124, 166, 177, 181, 190, 191 Fig. 100, 192 Fig 101, 193, 196, 197, 230, 250, 252, 258, 259, II. 

 Heteractis ritteri (Kwietniewski, 1897): Heteractis rr^agr^ifica (Quoy and Gaimard) [pro parte], Dunn, 1981, p. 40: 

 Radiar)tbus ritteri (Kwietniewski): Allen, 1972, pp. 166, 169, 175 Figs. 90-91, 176, Fig 92, 200, 220 Fig. 113, 

 222 Fig. 114, 228 Fig. 118, 232 Fig. 120, 233, 236, 250, 257, II. 

 Heteractis macrodacti/lum (Haddon and Shackleton, 1893): 

 Heteractis crispa (Ehrenberg) [pro parte], Dunn, 1981, p. 48: 



Radiantbus malu (Haddon and Shackleton): Allen, 1972, pp. 152 Fig. 75, 166, 168, 169, 170 Figs. 85-86, 171 Fig. 87, 

 172 Fig. 89, 200, 209, 225 Fig. 115, 228, Fig. 117, 229 Fig. 119, 233 Fig. 121, 254, 255, II. 

 Heteractis gelam (Haddon and Shackleton, 1893): 



Macrodact^/h doreensis (Quoy and Gaimard) [pro parte], Dunn (1981), p. 29: Radiantbus gelam (Haddon and 

 Shackleton): Allen, 1972, pp. 122 Fig. 56, 166, 168, 177, 186 Fig. 98, 187 Fig, 99, 200, 252, 1. 

 Family ISOPHELLIIDAE 



Telmatactis decora (Ehrenberg, 1834). 

 Telmatactis uermijormis (Haddon, 1898). 

 Family HORMATHIIDAE 



Calliactis polypus (Forsskal, 1795): Josephson, 1966, p. 305. 

 Family SAGARTIIDAE 



Verri/Zactis paguri (Verrill, 1869). 

 Family AIPTASIIDAE 



Aiptasia pulcbella Carlgren, 1943. 

 Order CERIANTHARIA 



Family ARACHNANTHIDAE 



Isaracbnantbus bandanensis Carlgren, 1924. 



BIOGEOGRAPHY 



Discussion of the geographic ranges of tropical Pacific 

 shallow-water sea anemones would, at this time, be mean- 

 ingless. In the many p)af)ers on these anemones, species 

 are often improperly or inadequately identified and improp- 

 erly or inadequately synonymized. 



Two corallimorpharians, 24 actiniarians, and one ceri- 

 antharian are presently known from Enewetak. Of these, 

 nine have an Indo-Pacific range, and 18 are known only 

 from the tropical Pacific. Cutress has also collected at 

 Majuro, Marshall Islands; French Polynesia; and Hawaii. At 

 Majuro (1 month), 19 actiniarians, one corailimorpharian, 



and one ceriantharian were collected. All species were 

 identical to those from Enewetak. In French Polynesia 

 (3 months), 14 actiniarians, two corallimorpharians, and 

 one ceriantharian were collected. All species were identical 

 to those from Enewetak. In Hawaii (6 years), 25 actiniari- 

 ans, one corailimorpharian, and one ceriantharian were col- 

 lected. Of these, only six species were identical to those 

 from Enewetak. 



With more collecting at Enewetak, additional species of 

 sea anemones will certainly be found. This speculation is 

 based on 10 sp>ecies that are known from the Gilbert 

 Islands or Kwajalein that have not yet been found at 

 Enewetak. 



KEY TO SPECIES 



Corallimorpharia 



Polyps often gregarious, small to medium sized. Column short, smooth. Tentacles very numerous, arranged in radial rows, 

 sometimes rudimentary. 



1. Discal tentacles dendritic, marginals simple. Crown diameter to 6 cm. General color ochre, brown, or 



greenish brown (Fig. 4c). Rhodactis howesii Saville-Kent 



