i6 



points scattcred over their surfao Some are almost smooth while others have the points 

 thickly implanti r their surfaces. I'h<- spicules of the axis do not diflfer materially from 



those of the calyces and genera! coenenchyma. 



Ilit- colony is very light yellowish brown, the polyps not differing in color 

 trom the stem and branches. 



This specimen came trom a greater depth than is often recorded for members of this family. 



Genus Paragorgia Milne Edwards and Haime. 



Pat i Milne Edwards et Haime. Histoire Naturelle des Coralliain -. I. I : . p. 190. 



Pat 1 Kölliker. [cones Histiologicae, II. [865, p. 141. 



Pat 1 Kölliker. Beitrage zur Kenntniss der Polypen, (870, p. 12. 



Pa 1 Studer. Versuch eines Systemes tier Alcyonaria, 1887, p. 2S. 



Pa Wright and Studer. Challenger Reports, the Alcyonaria, [889, p. XXXIII. 



Paragorgia Delage et Hérouard. Traite de Zoölogie Concrete, II, 2, 1901, p. 413. 



The original description of this genus by Milne Edwards is as follows: 



"Polypieroide arborescent, composed of a thin layer of cortical srlerenchyma in the 



thickness of which is limited the body cavities of tlie polyps, and a tubular (fistuleux) very 

 axis in the form of a spongy tissue very rich in calcareous spicules. Polyps united in 



groups on the extremities of the branches or upon the lateral tubercles, quite distant and 



irregularly disposed". 



Kölliker (1865) confines himself to a definition of the spicules, and (in 1870) gives a 



sort of kej to the genera of his "Briaracea" of which he makes a section " Paragorgiaceae" 



characterized by a branched colony in which the branches show a distinct cortical and nuclear 



part axis). The genus Paragorgia is characterized by the presence of large water-vascular 



canals in the axis, entirely retractile polyps and wart-likc calyces irregularly distributed. 



R (1887) gives a definition which can be adopted for our present purpose and is 



translated as follows: 



"Colony upright, branched, branches cylindrical, with irregularly disposed warty calyces 



within which the polyps are retractile. The slightly differentiated axis contains large water- 

 mals. Besides the polyps thcre are-, in P. nodosa Kor. and Pan., siphonozooids 



without tentacle 



The type species of this genus is Paragorgia arborea. Other species are Paragorgia 

 K 1 n and Danielsen, /'. splendens Thomson and Henderson and the new species secured 



by the Siboj 1 pedition. 



1. Paragorgia splendens Thomson and Henderson. (Plate III, figs. 4, 



Pat splendens Thomson and Henderson. Alcyonarians of the Indian Ocean, Part I, 



p 20. 



; X.. 111/40 E. 522 meters. Stony bottom. 



fragmentary specimens secured. The largest measures 2.3 cm. in height and has a 

 s' to the height. The main stem, or branch in 3 mm. in diameter and bifuri 



