618 Proceedings of the Royal Irkh Academy. 



Oct ACTINIA. 



The only Octactinian dredged was Virgularia mirabilis, Lam ; one 

 young specimen was obtained from the mouth of Kenmare River, in 

 40 fathoms, and two from the mouth of Bantry Bay, in 36 fathoms. 



^Kcliliiodei'iiiata. 



In addition to Forbes' Monograph, the following Papers have been 

 consulted: — The Eev. A. M. JN^orman's valuable Paper "On the 

 Genera and Species of British Echinodermata," part i., Crinoidea, 

 Ophiuroidea, Asteroidea; Ann. Mag. Nat. Hist. (3) xv., pp. 98-129, 

 and a useful List by W. E. Hoyle ; "A Revised List of British 

 Ophiuroidea," Proc. R. Phys. Soc. Edin. viii., pp. 135-156. 



Ceinoidea. 



Antedon rosaceus is very common in Berehaven on the 5-fathom 

 slope between Yolage Bock and Hornet Bock. The specimens were 

 large in size and brilliant in colour. In size they resemble the 

 Mediterranean specimens rather than those ordinarily found in British 

 waters. A couple of specimens were sent to Dr. P. H. Carpenter, 

 P.E.S., who found on them malformed pinnules, though without 

 definite cysts {Nature, xxxiii., 1885, p. 8), which are due to a new 

 encysting Myzostoma {cf. P. H. Carpenter, Nature, xxxii., 1885, 

 p. 391). 



The stalked larvae, more especially the later stages, were very 

 abundant on sea-weed (August 6th). 



ASTEEOIDEA. 



Astropecten irregularis, Penn., very few specimens, Stations III., 

 VIL, IX. ; Luidia savignii, Aud. (= L. fragillissima, Forbes, two 

 specimens, Station VII.) ; L. sarsii, Diib. and Kor. (= L. fragillissima, 

 Forbes, 5 -armed var.), fairly abundant. Stations III. and IV., of large 

 size — one specimen is 6J inches, and another 1^ inches in diameter ; 

 Asterina gibbosa, Penn, Station IX. ; Asterias glacialis, Linn., one 

 specimen, Berehaven, 10 fathoms; A. rubens, Linn., generally distri- 

 buted; greatest depth, 48 fathoms (Log ISo. 21); A. violacea, 0. F. 

 Miill, Dursey Sound and Berehaven. 



Ophitjeoidea. 



Amphiura chiajii, Forbes (= Ophiocoma punctata, Forbes), Bere- 

 haven; mud, 5 to 12 fathoms; common, but not quite so abundant as the 



