Sticphknson — Certain Actiniaria collected off Ireland. I'M 



and have nuclei throughout, but especially in their inner parts. The glandular 

 parts of the filament have more ordinary granular gland-cells than anything 

 else, and also a few non-granular ones. They contain thick-walled cnidae, 

 irregularly distributed, variable in size and form, but typically fairly short, 

 broad, boat-shaped, and blunt at the ends. Here and there a spiroeyst 

 (indigenous ?). 



(v) The above-described specimen presents no essential feature which 

 warrants its separation from Verrill's A. saginatus ; the only difference is 

 that his specimen had a mud-clasping base, but, as I shall show under 

 Aciinav.gc richardi, that is a non-constant character. My specimen does not 

 widely differ externally from A. nobilis, but that seems to have a definitely 

 lobed disc, and the colour of saginatus agrees better with my specimen than 

 does that of nobilis. 



12. A. aurelia n. sp. 

 "Aurelia" from its general external resemblance to a jellyfish. 

 (PI. XV, fig. 1 ; PL XVI, figs. 21, 28; PI. XVII, figs. 10-13, 15, 16, and 18 ; 



PI. XVIII, fig. 1.) 



1. S.E. 335. May 12, 1906. Lat. K 51° 12' 30"-51° 17' 30" ; Long. W. 

 12° 18'-12° 16'. 893-673 fathoms. Trawl. 6 specimens. 



2. S.E. 335. (See 1.) 4 specimens. 



3. S.E. 497, 499. Sept. 10, 1907. 775-795 fathoms. Trawl. 



S.E. 4.97. Lat. N. 51° 2' ; Long. W. 11° 36'. 

 S.E. 499. Lat. N. 50° 55'; Long. W. 11° 29'. 666-77S fathoms. 

 Sept. 11, 1907. 



Measurements — (i) A large specimen. Diameter of oral disc, 10 cm. ; thick- 

 ness of body- wall in a thick place, 1*3 cm. 



(ii) Smallest specimen. Diameter of oral disc, 7 cm. 



External characters. — The entire fades of this animal is so unusual, that 

 I found it difficult, at first, to believe that it really was a sea-anemone, and 

 not a Scyphozoan. It may be thought that an animal so distinct in aspect 

 from most other Actiniaria should be placed in a genus apart ; and at one 

 time I was inclined to think so. But comparison of the specimens with 

 A. saginatus, and the fact that in all essential anatomical characters they 

 resemble that species, have convinced me thai it would be unwise to separate 

 them. 



The pedal disc is present in all cases, but is extremely reduced and 

 insignificant; it forms a little pit or hollow with inturned edges, whose 

 mouth is often completely closed. (PI. XV. lig. 1.) It contains traces of 



IS 2] 



