V. '67. 5 



Additional records. 



Alcyonium digitatum has been frequently dredged by the 

 Helga in shallow water up to a depth of 45 fms. off many 

 parts of the Irish coast. 



It was obtained at almost every station off the east coast, 

 where it was found in great abundance, but there are no re- 

 cords of its occurrence in deeper water except those cited 

 above. 



Anthomastus agaricus, Studer. 



S.E. 480. Lat., N., 51 23'; Long., W., 11 38'; 468 fms. ; 

 temperature at 400 fms., 9*55 C. ; 28th August, 1907. 



A small specimen of Anthomastus, measuring only 6 mm. 

 across the disc, is with some doubt referred to this species, 

 which was described by Studer (1901) from two specimens ob- 

 tained off the coast of Newfoundland. The colony bears only 

 four autozooids. As in A. agaricus the disc is sharply marked 

 off from the peduncle, and its edge is thin and cut into lobes, 

 but the surface of the disc is much more convex than in the 

 Newfoundland specimens. The spicules bear a close re- 

 semblance to those figured by Studer. 



FAMILY NEPHTHYIDAE. 

 Eunephthya (Duva) rosea (Kor. and Dan.) 



S.E. 223. 53 1' N. ; 14 50' W. ; 500 fathoms; 12th May, 

 1905. 



Helga, CXX. 77 mi. W.N.W. of Achill Head, 382 fathoms; 

 24th August, 1901. 



' ' I have compared the specimens sent to me by Mr. 

 " Holt with a specimen of Duva rosea from the Trond- 

 " hjemsfjord in Norway, and I am convinced that they, are 

 " specifically the same. The species was originally de- 

 ' scribed by Koren and Danielssen (1883) from the Nor- 

 " wegian coast under the generic name Duva. The group 

 " of genera to which it belongs have not been very care- 

 ' ' fully compared as regards their anatomical structure , 

 ' ' and do not present any very characteristic features in 

 " the characters of their spicules, method of ramification, 

 "etc., to render their separation an easy task. The 

 ' ' species have consequently been shifted about from genus 

 " to genus by different authors. In the recent important 

 " monograph on the family Nephthyidae by Kiikenthal 

 " (1907) it is placed in the genus Eunephthya of Verrill 

 " (1869). Verrill's description of the genus was quite in- 

 " adequate, and it is impossible to determine what Verrill 



