86 ' ENDEAVOUR " SCIENTIFIC RESULTS. 



PRIMNOELLA GRANDISQUAMIS, Wright and Studer. 



Primnoella grandisqiiamis, Wright and Studer, Chall. Rep., 

 Zool., xxxi., 1889, p. 86. pi. xvii., fig. 4, pi. xxi., fig. 

 13. Id., Yer.sluys, Gorgoniden Siboga Exped., ii., 

 Primnoidse, 1906, p. 55. 



The collection contains a number of broken pieces of 

 Primnoella grandisquamis, Wright and Studer, which does 

 not appear to have been obtained since those authors pub- 

 lished their original description of a specimen 39 mm. in 

 length. 



They were trawled from the type locality in 40 fathoms. 

 The largest has a height of 210 mm. ; the basal attachment 

 is lacking. The axis has an almost uniform diameter of 

 0-5 mm. The colony is a long, flexible, thread-like, un- 

 branched stem around which the polyps are arranged in 

 whorls. There are four to five polyps in a whorl. The 

 average length of a polyp is 1-5 mm., with a diameter of 

 0-9 mm. The whorls are about 1-5 mm. apart. Young 

 polyp buds, arranged in whorls, are visible in the internodes. 



Tho calyx scales are large, transversely elongate, and 

 overlapping, and only two longitudinal rows are visible from 

 the dorsal side. Each scale shows a nucleus with fine lines 

 radiating from it. The surface is studded with small warts. 

 The free margin of the scale is entire ; the remainder is 

 strongly toothed. Their dimensions are -385 x -262 mm. ; 

 315 x -227 mm. ; -315 x -262 mm. ; -297 x -245 mm. The 

 opercular scales are short, flat structures -227 x -070 mm. 

 The spicules of the coenenchyma are oval, four-cornered, and 

 polygonal plates, with a central nucleus and teeth round the 

 edges, and with warts over the surface- -402 x -227 mm. ; 

 -385 x -262 mm. ; -350 x -297 mm. ; -192 x -113 mm. 



The colour of the specimens is creamy-white. 



Locality. Off Eden, Twofold Bay, New South Wales, 40 

 fathoms. 



Distribution. Hitherto recorded only from " Challenger ' 

 Station 163A, off Twofold Bay, New South Wales, 150 

 fathoms (Wright and Studer). 



Genus CALIGORGIA, Gray (emend. Studer). 

 CALIGORGIA FLABELLUM (Ehre.ribe.rg). 



Gorgonia verticlllaris, Esper, Fortsetz. der Pflanzenthiere, 



x., 1797, p. 156, pi. 42. 

 Primnoa flabellum, Ehrenberg, Corallenthiere rothen Meeres, 



1834, p. 134. Id., Kolliker, Icones Histiologies, 



1865, p. 135, pi. xvii., fig. 11. 



