No. 1I.] ACTINIARIA OF THE BAHAMAS. 4! 
preparations were not, however, quite satisfactory for the deter- 
mination of the relation of the gonophoric and sterile mesen- 
teries. A filamental apparatus is present. 
Several specimens were obtained in various stages of division, 
and there can be no doubt but that this species must be added 
to the list of those which are known to reproduce non-sexually 
in this manner. 
The form described by Ehrenberg (34), Klunzinger (’77), and 
others, from the Red Sea, occurring also at Mozambique, and 
known as Discosoma giganteuwm (Forsk.), is very close to the one 
here described, if one can judge by the descriptions which have 
been given of it; but differs somewhat in size, measuring IO cm. 
in height. It must, however, be considered a distinct species 
until a further study of it has been made. It is worthy of 
note that Forskal mentions the adhesiveness of the tentacles 
of D. giganteum, which, as above stated, is very noticeable in 
D. anemone. 
Mosely, who first described the deep-sea forms Corallimorphus, 
considered them most closely allied to Dzscosoma. R. Hertwig 
(82), however, established a separate family for the genus while 
recognizing the probability of a close similarity in structure to 
Discosoma, but placing importance upon the nature of the ten- 
tacles, which are of the knobbed variety and arranged in an 
inner and an outer cycle, a tentacle of the former occurring on 
the same intraseptal space with one of the latter cycle. He 
also suggested a similarity to the Corynactida, which likewise 
possess knobbed tentacles. It is evident, from the description 
given above of Dzscosoma, that Corallimorphus cannot be placed 
in the same family with it. The presence of the strong circum- 
scribed muscle in the former genus at once distinguishes it, 
there being no special circular muscle at all in the latter. A 
study of Corynactzs is required to ascertain its nature in this 
respect. 
Family Ruopactip#&, Andres. 
Synon. — Phyllactinine (pars) — Klunzinger, 1877. 
Rhodactide = Andres, 1883. 
Stichodactylinz with tentacles of two kinds. The margin is 
furnished with tentacles of the ordinary kind arranged appar- 
