166 



PERCY SLADEN TRUST EXPEDITION. 



1) 



Siphonogorgia pendula var. ternatana, Kiikeiitlial. 

 jiendula var. n. rnmosa. 

 kollikeri, Wright and Studer, var. n. 

 rugosa. 

 „ flavucapitata (Harrison). 



„ rnbiista, sp. n. 



J, harrisoni, sp. u. 



Slereacantlna indica, Thomson and Henderson. 

 „ armata, Thomson and Simpson, 



„ elongata, sp. n. 



Cactogorgia lampas, sp. n. 



Order III. PSEUDAXONIA, G. von Koch. 



Family Briareid.e. 



Subfamily Briareinae. 

 Solenocatdon tortuosum, Graj'. 



Family SclerogorgiDjE. 



Suberogorgia verriculata (Esper). 

 Kero'eides koreid, Wright and Studer. 



Family Melitodid/E. 

 Melitodes lavis, Wright and Studer. 



,, variabilis, Hicksoii. 



„ flabellum, sp. n. 

 Wrighiella coccinea, Gray. 

 Pansis fruticosa, Verrill. 



Order IV. STELECHOTOKEA. 



Section Asiphonacea. 



Family Telestid^. 

 Telesto rubra, Hickson. 



Section Pennatulacea. 



Family PennatulidjE. 

 Pennaiula sp. 



Order V. CGENOTHECALIA. 

 Family HELiopOBiDas. 

 Heliopora cmiulea, Blaiiiville. 



Introductory Note. 



Some of the most interesting features of the non-axiferous Alcyonarians in the 

 collection may be briefly referred to, keeping to the order in which they occur in 

 the text : — 



[a) A very remarkable and puzzling appearance is presented by Sympodium 

 salomonense, sp. n. — a membranous Alcyonarian, like the British Sarcodictyon, growing 

 over a weathered piece of a Madrepora. 



[b) In its glistening appearance — due to peculinr spiculation — Claoularia scintil- 

 lans, sp. n., is a distinctive species in tliis crowded genus. 



[c) A study of Anthelia glaiica, Lamarck, and similar forms in the collection shows 

 that very little importance can be attached to such changeable features as the number 

 of rows of polyps, or the extent of the middle line left bare. An occasional growth- 

 variation — the coherence of adjacent polyps at their bases — is interesting, because it 

 suggests a link between Anthelia and Xenia, or how tlie Xenia type might arise. 



{d) The brilliant pinkisli-red variety of Cespilulaj'ia Icenmta, May, is striking, and so 

 was the vivid grass-green of C. ccerulea, ]\Iay. In neither is the colour due to spicules, 

 for there are none. In C. ccp.rulea the colour seems to be due to zoochlorellae and it 

 has faded away in the spirit. 



(<?) The puzzling form Bellonella indica, Thomson and Henderson, one specimen of 

 which Prof. Herdman found olf Cevlon, has fortunately reappeared in Mr. Gardiner's 

 collection, and it must be confessed that it is no Bellonella. Nor is it to be included in 



