272 



a salmon-pink tinge, but the top of the partially retracted verruca is almost pale 

 yellow. 



Locality ; Andamans, off Rutland Island, 35 fathoms. 



(E) Several delicate fragments the largest of which is 45 mm. in height and 

 20 mm. in breadth. The diameter of the largest branch is 1-5 mm. 



The ccenenchyma is thin and comparatively smooth. The branching is in 

 one plane and most of the branches arise almost perpendicularly. The polyps 

 are disposed all round, but mainly on three surfaces. The verrucae appear as 

 truncated cones with a terminal depression. They have a height of over 1 mm., 

 i.e., almost equal to the thickness of the branch on which they are borne. 

 They have a diameter of 075 mm. The colour is hrownisli-yelhm but the tips 

 of the verrucse are almost white. 



Locality : Andamans, 270-45 fathoms. 



(F) A number of broken jjortions of a large colony all with a distinct 

 tendency to branch in one plane. The branches arise at right angles, are very 

 closely packed together and considerably thinner than those from which they 

 arise. The ccenenchyma is thin, glistening and arenaceous. The polyps occur 

 all round and show all stages of retraction from elongated truncated cones to 

 small dome-like elevations. The colour is almost brick-red. 



Locality : Andamans, '270-45 fathoms. 



(G) A large slightly damaged branch, 95 mm. in height and 45 mm. in 

 breadth. It gives off branches for the most part from one side, and these bear 

 slender twigs. The diameter of the main stem is 4 mm., that of a twig 1 mm. 

 The ccenenchyma is thin and comparatively smooth. The polyps occur all 

 round. On the main stem they appear as small warts, but on the twigs they 

 are more elevated, and in proportion to the diameter are much more conspicuous. 

 The colour is a ^?ff/^ greyish-ijellow. 



Locality : Andamans, 36 fathoms. 



Several specimens in the Wood-Mason Collection rei^resent this species. 

 The first and largest is orange-red in colour ; it is 150 mm. in height and 210 

 mm. in maximum breadth, so that the expansion is much more lateral than 

 vertical. The verruccC occur all round and are large and distinct. The specimen 

 is quite typical of the species. The other colonies have a dull orange-brown 

 colour. 



GENUS GORGONELLA, Valenciennes. 



Gorgonella umbella, Esper. 



= Gorgonia mubella, Esper ; see Ridley, " Alcyonaria of Mergui Archipelago," 



"Journ. Linn. Soc," xxi. (1887), p. 240. Plate VIII. figs. 8 and 10. 



Belonging to this species there are specimens from three different localities. 

 One small broken colony 90 mm. high apd 30 nun. broad is interesting chiefly 



