B-20 



sub-branched usually in a dichotomous pattern. The horny axis 

 of the stem is smooth, round, and has a bronze irridescent color; 

 that of the smaller branches is yellow or amber. The lower end 

 of the stem is a calcareous root-like structure used for holding 

 the colony upright on soft substrates. In preserved specimens 

 the polyps sit as nob-like swellings 1-2 mm high on the upper 

 or lateral sides of the branchlets. They are spaced 5-10 mm 

 apart. The spicules are small flattened rods (up to 0.18 mm long) 

 with rounded ends and a slightly constricted middle section. 

 They are arranged in vertical parallel rows along the sides of 

 the polyps and into the bases of the tentacles. The color of the 

 polyps and coenenchyme is white. This species is known from off 

 George's Bank in 1242 fm, and it has also been reported from the 

 eastern Atlantic. 



Several individuals that may be C. agaesizii were found in the 

 historical survey at 2150 m in the vicinity of Hudson Canyon. 



PENNATULACEANS 



Pennatula grandie (Ehrenberg) 



Pennatula gvandie^ Ehrenberg, 1834:66 

 Pennatula hovealia ^ Sars, 1856:17 

 Ptillela borealiSj Gray, 1870 

 Pennatula belissimaj Fowler, 1888:135 

 Pennatula (Ptillela) borealis , Verrill, 1883:3 

 Ptillela hovealis^ Verrill, 1922:9 

 Pennatula gvandis^ Deichmann, 1936:283 



Colonies of Pennatula spp. are the common feather-shaped sea 



pens. The colony form is the result of the extensive development 



