NORTH AMERICAN ALCYONARIA. 



555 



W. coast of Vancouver Island. 



Local name. Coral-pink candelabrum coral. 



The genus Psaonmogorgia is so badly in need of revision and 

 full description that I refer this specimen to Verrill's sj)ecies 

 with the greatest hesitation. The type of the species was taken 

 off Pearl Island, which I believe to be off the west coast of 

 tropical America, in 6-8 fathoms, and is said to be rare. 



The specimen from Vancouver Island is dry, and, in the 

 presence of a flattened base of attachment, is evidently complete. 

 It is 115 mm. in height and has six branches. The diameter of 



Text-figure 5. 



Spicules of Fsammogorgia teres. X 500 diam. 



the thickest branch is about 4 mm., and the branches are almost 

 cylindrical in shape. The diameter of the axis just below the 

 point where ramification begins is 4 mm., and the disk of attach- 

 ment is thin and about 10 mm. in diameter. The crust varies in 

 thickness fi-om about 0*25 mm. below to 1 mm. near the terminal 

 ends of the branches. 



The positions of the zooids are marked by flat or slightly 

 convex prominences, quite irregularly distributed over the sur- 

 face of the coenenchym, and in the centre of each prominence 

 there is a stellate aperture. 



