ANTHOZOA OF THE WOODS HOLE REGION. 



245 



In only a few instances have representatives of the species been taken in the region. On two occa- 

 sions I have taken specimens at Crab Ledge, off Chatham, Mass.; another specimen was taken by Dr. 

 Sumner, late in the summer of 1907, off 

 Gay Head , which was presumably of this 

 species, though unfortunately was not 

 preserved. 



The following may be taken as fairly 

 diagnostic characters: Column generally 

 smooth, or with slight papillose bodies vari- 

 ously disposed over the body, more par- 

 ticularly on the upper portion, and in the 

 specimen there was a marginal series of 

 spherular bodies. Pedal disk well devel- 

 oped and larger than diameter of column. 

 Oral disk well defined and with darker 

 radial- lines extending toward the margin. 

 Tentacles rather stout, fingerlike, about 50 

 in number in specimens taken by me, 

 arranged in some three series. 



Sphincter strongly developed, and 

 almost diagrammatically comparable with 

 Hertwig's figin-eof this organ for the genus. 

 (Of. fig. 4.) I regret that my material was 

 found badly preserved for histological de- 

 tails, so that it has been found impractica- 

 ble to submit figures of other internal or- 

 gans. It was not difficult to determine 

 the presence of numerous mesenteries, two 

 siphonoglyphes, and the appropriate di- 

 rectives, as shown in text figure 3. 



Reproduction: So far as known this is 

 exclusively sexual. In the cases under 

 observation it was found that earlier de- 

 velopment takes place within the gastric 

 cavity of the adult. Several young were 

 brought forth during life in the aquarium 

 in a stage of perfect development, and con- 

 tinued to thrive for some time. 



Distribution : While rather rare within the region the cases given make certain its presence as an 

 integral feature of the fauna. According to Verrill, from Nantucket Shoals to Grand Manan. 



Fig. i.—Tealia crassicornis. Section through two primary, and pair 

 of directive mesenteries; ent, entoderm; ec, ectoderm; (/(directive 

 mesenteries. 



Eloactis producta (Stimpson). 



ELOACTIS Andres, 1883. 



[PI. xui, fig. 4-] 



Actinia producta Stimpson, Proc. See. Nat. Hist., Boston, vol. v. p. no, 1856. 

 Haicompa producta Verrill, Mem. Boston Soc. Nat. Hist., vol. I, 1862, p. 30. 

 albida Verrill, ibid., p. 29. 



producta Verrill, Inv. An. Vineyard Sound, 1874, pp. 330, 738. Andres, Fauna u. Flora Golfes v. Neapel. bd. 

 IX, p. J06. 

 Eloactis producta RIcMurrich, Proc. U. S. Nat. Mus., vol. XVI, 1S94. pp. 141-142. 

 ' Eloactis producta Parker, Am. Nat., vol. X-Xxrv. 1900. 



Andres (op. cit., p. io6) was the first to express doubt as to the exact generic relations of this 

 actinian and to suggest the probable necessity of establishing a new genus. This suggestion was later 



