380 A. E. Verrill — New Actinians. 



Epigonactis regularise sp. no v. Figure 36. 



Body, as contracted in alcohol, nearly hemispherical, with 

 the base as wide as any part. Disk and tentacles concealed. 

 Wall firm and elastic, covered with a yellowish brown ecto- 

 derm ; not much wrinkled, except near base and on collar. 

 The collar is strong and sulcated, and also finely wrinkled 

 transversely, giving the surface an areolated appearance. 

 Near the base the wrinkles are transverse and wavy. On the 

 upper half of the column there are vertical rows of large 

 egg-pits, some of them circular and cup-shaped, others oval or 

 egg-shaped ; some of them are bordered by several small con- 

 vergent lobes, others with folds, while some are widely open. 

 They carry no eggs in the type, but are evidently used for 

 that purpose. The wall is thickened at the collar, but thin 

 above it ; lower down it is of moderate thickness but firm ; 

 the three layers are very definite and easily visible to the 

 naked eye, in sections, without staining ; the sphincter is large, 

 elliptical in section, well circumscribed. The circular muscle 

 layer is continuous and well-defined. 



Tentacles about 90, stout, sulcated, rather obtuse, of mod- 

 erate length, arranged in three or four crowded rows ; mouth 

 large, with two siphonoglyphs, bordered by large lobes. 



Mesenteries form about 44 pairs, most of which are perfect 

 and bear gonads. In a section, near the lower part of the 

 stomodseum, 36 perfect pairs were counted, and most of the 

 remaining eight, which were nearly as wide, may be attached 

 lower down. Those next to the two pairs of directives, on 

 each side, were the least developed. Owing to the equality in 

 the size of the mesenteries no definite hexamerous arrange- 

 ment could be made out. The longitudinal muscles are very 

 broad, covering nearly the whole breadth of the mesenteries, 

 thick and pleated ; those of the directives are less thick, but 

 have a. second inner enlargement, near the siphonoglyphs. 

 There are no rudimentary or narrow mesenteries between the 

 larger ones in the gastric region. 



Fishing Banks, off Newfoundland, in deep water. It was 

 brought up on the trawl hooks of a Gloucester, Mass. fishing 

 vessel, but no record of the precise locality was given. 



