Antipatharians. By Sophia L. M. Summers. 65 



Stichopathes echinulata Brook. Plate V. fisj. 11. 



See Brook, Report on the Antipatbaria of the ' Challenger' Expedition, 

 p. 92, pi. xii. fig. 9. 



Of several specimens, the longest is 95 cm. It is twisted in 

 irregular spirals. The axis gradually tapers to a fine point. The 

 diameter at the base is 1 mm., and of the central canal 0-5 mm. 

 The polyps are large and crowded on one side of the axis. In 

 some of the specimens they show a peculiar mode of growth, 

 being bunched together at intervals in a sort of hummock. Tlie 

 longest diameter of the polyp is 3 mm. The mouth is raised on 

 a prominence 1 mm. in height. The tentacles are long and thin. 

 The spines are numerous, and are arranged in steep spu-als. Of 

 the vertical longitudinal rows of the spiral, nine can be seen from 

 one aspect. In one part of the stem the spines are short, tri- 

 angular, and much compressed ; at another part they are much 

 longer. Members of a row are about three lengths apart. 



Localitij. — Portuguese East Africa. Previously recorded from 

 Mauritius. 



Stichopathes gracilis Gray. 



See Brook, Report on the Antijiathaiia of the 'Challenger' Expedition, 

 p. 90, pi. xii. figs. 17-19. 



Two fragments, one 26 5 cm., the other 8 cm. The larger 

 specimen is somewhat spirally coiled. The axis is black and 

 tapering. At the base it is 2 mm. in diameter, at the tip 1 mm. 

 The polyps are on one side of the axis, and are large and circular 

 (2 mm. in diameter) ; the tentacles are short and thick ; the mouth 

 is prominent. The spines vary very much in diflerent portions of 

 the axis. In slender portions of the stem the spines are arranged 

 spirally and in longitudinal rows. They are triangular and com- 

 pressed and stand at riglit angles to the axis. In thicker jiortions 

 the arrangement is less regular. Most are simple and have a 

 sharp apex, but a few are forked at the tip. 



Localitij. — Portuguese East Africa. Previously recorded fi-om 

 Fiji, Ked Sea, Seychelles, Ceylon. 



Antipathes salicoides sp. n. Plate V. figs. 2, 4, 7. 



The whole colony is like a miniature weeping-willow. The 

 main stem, which seems to lie broken, is only 10-5 cm. iiigh. It 

 is 2 mm. in diameter at the base, and gives ofl" long tapering 

 branches from one side, the first of which reaches a length of 

 32 "5 cm. Some of these branches remain undivided, wliile others 

 give off long slender twigs. The wliole specimen is densely 



