Colony (incomplete) flabellate and not reticulate in form, 4.6 cm. high and with a 

 spread of 4.7 cm. The main stem is round in section and 1.5 mm. in diameter. The branches 

 are all lateral, there being 7 on one side and 4 on the other. 5 of the branches are compound, 

 giving off irregularly disposed lateral branchlets, branchings of the third order being sometimes 

 attained. There is no regularity whatever in the distance between branches. The calyces are 

 mainly lateral in position, but may be on all sides of the terminal twigs, and are very unevenly 

 spaced, being from less than i mm. to 2 mm. apart. 



The individual calyces are dome-shaped verrucae with the summits divided into 8 not 

 very strongly marked lobes. A typical one measures. 6 mm. in height and i mm. in diameter 

 near the base. The upper part of the calyx wall is filled with spicules arranged en chevron 

 and rising in 8 low points around the margin. The polyps are completely retractile and show 

 a well-marked but slender collaret composed usually of a single row of transverse spindles. 

 The tentacles have comparatively large spindles arranged en chevron on their proximal 

 parts and longitudinally placed on the distal parts. 



The general ccenenchyma is covered with rather large tuberculate spindles which are 

 usually longitudinal but may lie in any direction. The axis is wholly corneous and the water- 

 vascular canals are not conspicuous. 



Spicules. These are nearly all regularly and densely tuberculated terete spindles, 

 usually straight but sometimes curved. They never show a distinct girdle. Most of them are 

 less than .5 mm. long, but an occasional one is found which is relatively large, reaching a 

 length of i mm. Minute crosses and irregularly branched forms are occasionally seen. 



Color. The colony is a rather dark scarlet, and the spicules are yellowish red or orange. 



General distribution. The type was secured in the Antilles. It has also been 

 reported by STUDER from the Azores, depth 454 meters. 



The Siboga specimens agree well with the description and figures given by STUDER. 

 This form reminds one of certain species of the muriceid genus Muricella, but the spicules 

 are much smaller than is usual in that genus. 



2. Stenogorgia studeri new species. (Plate II, figs i, \a\ Plate III, fig. 193). 

 Stat. 310. 8 30' S., II97'.5E. 73 meters. 



Colony flabellate and not reticulate, rigid in habit. The main stem and larger branches 

 are distinctly flattened and grooved on their flat surfaces. Colony 1 1 cm. in height. The main 

 stem is 2.5 mm. by 2 mm. in section. 4.4 mm. from its base the stem forks, but one of the 

 resultant branches is broken off at its origin. The other main branch bears a number of laterally 

 disposed branchlets which are irregularly spaced and themselves bear lateral branchlets which 

 occasionally bear twigs of the fourth order of branching. The stem and main branches are 

 distinctly furrowed on one of the flattened sides and indistinctly so on the other. Almost all 

 of the calyces are lateral in position and tend to be alternate on the distal parts of the twigs. 



The individual calyces are warty of dome-shaped verrucse, a typical one measuring 



