1906.] ALCYONARIANS FROM ZANZIBAR. 433 



These specimens differ essentially from L. lutheni Wrig-lit k 

 Studer in the following particulars : — 



(1) There is no distinct " ii'regular wavy line" on the branches. 



(2) The polyps are distributed all over the coenenchyma. 



(3) The spicules never exceed 0'19 mm. in length (in L. liltkeni 

 up to 0'34 mm.). 



(4) The colour of L. liltkeni is a dull yellowish red. 

 From L. arista Mobius they also differ in a few details : — 



(1) In L. crista there are numerous striations on the coenen- 

 chyma especially near the base, but these diminish in number 

 in the younger branches ; in our specimen the stiiations are 

 very faint. 



(2) The ingures of spicules given by Mobius are not quite like 

 those in oin- specimen, but the variation in the size and form of 

 the spicules in the different parts of the colony which we have 

 noted in detail has led us to disi-egard the minor differences. 

 It may b6 that the spicules described and figured by Mobius 

 were taken from the coenenchyma near the base. 



(3) The coloui-, both of the specimens themselves and of the 

 spicules, shows a marked difierence, but this does not justify their 

 separation from L. crista. 



Locality. Cape Yerde Islands. Previously recorded from Algoa 

 Bay. 



LoPHOGORGiA LtJTKENi Wright & Studer. 



This species is represented by a piece of a colony 295 mm. in 

 maximum height and 105 mm. in width. It is branched in one 

 plane, with the branches flattened in the plane of branching and 

 marked T)y a distinct groove along both the flattened faces. The 

 polyps are confined to the lateral suifaces of the branches and 

 twigs; their verrucae are reduced to slight elevations of the 

 general caMienchyma,. The species is practically identical with 

 the forms which we referred to L. liltlceni Wright & Studer 

 (Ceylon Pearl-Oyster Fisheries E,eports), and shows the same 

 minor divergences fi^om the type. 



Locality. Wasin, British East Africa, 10 fathoms. Previously 

 recorded from Cheval Paar. Gulf of Manaar. 



Order V. STELECHOTOKEA. 



Section A. Asiphonacea. 



Family Telestid^. 



Telesto rii2}icola Miiller. 



,, arborea Wright &, Studer. 



Family CcELOGORGiiDyE. 



Gcelogorgia pahnosa Wright & Studer. 

 ,, repens, sp. n. 



