56 



CUTRESS AND ARNESON 



12. Column with inflatable, simple, or compound vesicles. 

 Column smooth or with solid warts. 



13 

 14 



13. Vesicles simple, of different sizes, scattered over proximal half of column. Tentacles 



deciduous. Column diameter and column length 1.5 cm. General color pale greenish brown, column 



often with alternate streaks of white, yellow, and violet (Fig. 4d). Bunodeopsis medusoides (Fowler) 



Vesicles branched and compound, forming a ring around mid-column. Tentacles not deciduous. 



Crown diameter and column length 1.5 cm. General color dark brown (chartreuse when carried by 



Li^bia tesselata) (Fig. 4f). Thactis producta Klunzinger 



14. Column smooth. Margin without vesicles. 



Column with or without warts. Margin with vesicles. 



15 

 16 



15. Tentacles to 4 cm, usually with subterminal inflations. Crown diameter to 8 cm. Column off white to 

 pale greenish brown to pink to violet. Tentacles greenish brown, tips often white (not illustrated). 



Ph\isobrachia douglasi Saville-Kent 

 Tentacles to 4 cm, evenly tapered to praint. Mid-column with cinclides. Crown diameter and column 

 length to 7 cm. General color pale to dark olive brown (Fig. le). Aiptasia pulchella Carlgren 



16. Marginal vesicles prominent. Column without warts. Crown diameter and column length 1.5 cm. Gen- 

 eral color reddish brown, larger vesicles white (Fig. 3b). Anthostella badia Carlgren 

 Column with rows of prominent adhesive warts. 17 



17. General color violet black, warts often white. Crown diameter to 2.5 cm (Fig. 3a). Anthopleura nigrescerts (Verrill) 

 Tentacles bright green to brownish green. Column pale pink. Crown diameter to 2.5 cm (Fig. 3e). 



Actinogeton sesere (Haddon and Shackleton) 



18. Column elongate to vermiform, with prominent cuticle. 

 Column short, cuticle inconspicuous. 



19. Tentacles number 48 or more. 

 Tentacles fewer than 48. 



19 

 22 



20 

 21 



20. Tentacles pointed. Column with thin sand-covered cuticle, length to 4 cm, diameter to 1.5 cm 



(Fig. Ic). re/matactis uerwiformis (Haddon) 



Tentacles blunt to capitate. Column with thick, shaggy cuticle, length and diameter to 8.0 and 2.5 cm 



(Fig. la). Telmatactis decora (Ehrenberg) 



21. Column length and diameter 25 and 2.5 cm (Fig. 4e). 

 Column length and diameter to 4.0 and 0.4 cm (Fig. 4b). 



Edwardsia pudica Klunzinger 

 Edwardsia gilbertensis Carlgren 



22. Column firm, lower part with one or more rings of prominent pores through which salmon-colored 

 threads are frequently extruded. Color of column gray to rusty orange, often with streaks and blotches 

 of dull plum red. Crown diameter to 5 cm. Lives with hermit crabs (Fig. Id). Calliactis pol^ipus (Forsskal) 



Column lacking pores, white to gray, often with fine streaks of rusty orange, 

 often thicker than rest. Crown diameter to 2 cm. Lives with hermit crabs (Fig. lb). VerriUactis paguri (Verrill) 



Ceriantharia 



Solitary, elongate, tube-dwelling polyps, with tentacles divisible into short labials and long marginals. Only species recorded 

 from Enewetak: 



Tentacles numbering to 56, more commonly 48 or 52. Column length to 10 cm, crown diameter to 6 



cm. General color reddish brown (copper) (Fig. If). Isarachnanthus bandanensis Carlgren 



COLLECTION RECORDS 



Actinodendron glomeratum Haddon 

 Enewetak: 60 feet, Sept. 1980. 



Actinodendron plumosum Haddon 

 Chop Top: Sept. 23, 1980. 



Actinodiscus neglectus (Fowler) 

 Lojwa: Sept. 1980. 



Actinogeton sesere (Haddon and Shackleton) 

 Ananij: May 8, 1955. 



