144 



COSLENTERATA 



disc small; tentacles short: buried in the sand near low water mark; from 

 Cape Cod to Hatteras; Europe. 



Family 4. SAGAETIIDAE. 



Anemones with a sphincter and with aeontia ; einclides usually present ; 

 tentacles usually numerous: 20 genera. 



1. Sagartia Gosse. Outer surface smooth; oral disc not lobed; 

 einclides present; tentacles in 3 or 4 cycles and retractile: many species. 



S. luciae Verrill. Body 8 mm. high, 6 mm. in diameter, olive green 

 in color, with about 12 longitudinal orange stripes ; 84 tentacles in 4 rows : 

 very common on stones and shells in tide pools; Long Island Sound to 

 Massachusetts Bay and farther north. 



S. leucolena Ver. Body elongate, 6 cm. long extended, 10 mm. in 

 diameter, with a translucent flesh color ; tentacles 96, in 4 rows : common 



Fig. 234 



Fig. 235 



Fig. 236 



Fig. 234- 



-Paractis rapiformis (from Parker). Fig. 235 — Sagartia modesta (from 

 Parker). Fig. 236 — Metridium dianthus (from Parker). 



under stones and in the sand in shallow water from North Carolina to 

 Cape Cod. 



S. modesta Ver. (Fig. 235). Height 6 cm.; diameter 15 mm.; color 

 yellowish; tentacles 60: buried to the tentacles in sand; Long Island and 

 Vineyard Sounds. 



2. Metridium Oken {Actinoloha Blainville). Outer surface smooth; 

 pedal disc broad; oral disc lobed; einclides present; tentacles very 

 numerous and short: several species. 



M. dianthus (Ellis) {M. marginatum Lesson) (Fig. 236). Length up 

 to 10 cm., width 7 cm.; color variable, but usually brownish or yellow- 

 ish : the largest and one of the commonest sea anemones on the Atlantic 

 coast; New Jersey to Labrador, from low-water mark to 90 fathoms; 

 Pacific coast; Europe. 



3. Adamsia Forbes. Pedal disc adherent, the animals fixing them- 

 selves to the shells of hermit crabs or to crustaceans ; a band of cinclidial 

 tubercles around the base of the column, the rest of which is smooth. 



A. tricolor Lesson. Height 75 mm. ; diameter 45 mm. ; tentacles 500 

 or more in large individuals : on hennit crabs ; North Carolina to Florida, 

 in shallow water. 



