20 G Canadian Arctic Expedition, 1913-1918 



Suborder ALCYONACEA Verrill, 1865; emended. 



Family ALCYONID^E Verrill, 1865. 



Alcyonium siderium. New species. 



Alcyonium digitatum (?) VERRILL, Proc. U.S. Nat. Mus., Vol. 2, p. 199, 1879 

 (description). 



Text Fig. 3. 



This species has never been taken in our waters but once, so far as I know. 

 The two original specimens were much alike. It has not yet been figured, and 

 therefore I have illustrated it here (fig. 3). It seemed to be distinct from the 

 common European species, A. digitatum, to which it is nearly allied. It grows 

 in*the form of flattened lobes or fronds, covered to the base with spaced slightly 

 raised calicles, and with a finely grantilose ccenenchyma between the calicles, 

 which is filled with small white simple warted spicules, mostly acute spindles. 



Off Cape Cod, on the Fishing Bank, in 80 fathoms. It was found where the 

 the bottom is rocky, and probably it occurs on all the more northern fishing 

 banks off Nova Scotia on rough rocky bottoms, where it is hard to use suitable 

 apparatus for collecting adherent species. 



The type is in the U.S. National Museum. 



Fig. 3. Alcyonium sidereum Ver. sp. nov. Type. Drawn while living, x 1J. 



Family NEPHTHYID^) Verrill, 1865. 

 Nephthyidce VERRILL, Proc. Essex Inst., Vol. VI, p. 46, 1869, 



Gersemia canadensis Verrill. New species. 

 Plate I; Figs. 2-2d. Plate II; Fig. 5 a-t. Plate III; Fig. 8. 



This species, contracted in alcohol, has various forms, much like those of 

 G. rubiformis. The specimens are attached to dead shells and stones by a thin 

 expanded base, which appears finely granulose under a lens, especially when 



