36 G 



Canadian Arctic Expedition, 1913-W18 



Colour in life is often light red or pink, fading in alcohol. 



This species has been brought in from the fishing banks, off Nova Scotia 

 and Newfoundland, by various vessels, and presented to the U.S. Fish Com- 

 mission. It occurs in 130 to 300 fathoms, and is evidently common at those 

 depths. It is also widely distributed in the Arctic regions, and off the northern 

 coasts of Europe. 



I'ig. 7. Duva arborescens Dan. 'i'ype. One of the polyps, and part of another with eg 

 Daniel3se;i, enlarged. 



After 



Jungersen united all the twelve nominal species of Duva, described and 

 figured by Danielssen, under the common name Eunephthya florida (Rathke). 

 Molander retained three as distinct. Our species seems to agree best with D. 

 rosea, and to differ distinctly from D. florida, judging by the figures of the latter. 

 Some of the other species described bj^ Danielssen seem to me worthy of recog- 

 nition, judging from his numerous figures of the spicules, etc., especially those 

 that have in the polyps much larger and more numerous spicules, like D. 

 glacialis, to which D. cinerea might be united; and D. flava, PL V, figs. 1-33, 

 which has unusually large and stout spicules in the anthocodia. 



Family CLAVULARIDi^. New family. 



Stoloniferous Actinaria having calicles more or less prominent and filled with 

 spicules, mostly rough warted spindles. Polyps also spiculose with a spiculose 

 anthocodia. 



Trachythela Verrill. New genus. 



Plate VII; Figs. 1-7. 



Polypidom consists of rather large, low, verruciform or short truncate- 

 conic calicles united by narrow creeping stolons, or by a thin continuotis basal 

 expansion, usually attached to the dead axis of a Gorgonian coral, and stiffened 

 by closely packed fusiform spicules of unusually large size. 



