No. X.— THE MARINE POLYZOA OF THE INDIAN OCEAN, 



FROM H.M.S. SEA LARK. 



By Lauea Roscoe Thornely. 

 Plate 8. 



Read 2nd March, 1911. 



There are 106 species and 12 varieties in this collection, of which nine species and 

 five varieties are new to science, namely : — 



Bugula 7ieritina var. rubra. Lepralia crassa. 



„ „ ,, tenuata. „ marginata. 



„ ,, „ ramosa. ,, bicornis. 



Memhraniporella magnifica. Smittia glomerata 

 Cribrilina reticulata. ,, ornata 



Bifaxaria vagans. Phylatella galeata 



Retepora monilifera var. Mucroiiella ellerii var. multi-aviculariata. 



Forty of these species have been reported by myself from Ceylon*, and some of the 

 same with three besides from the Bay of Bengal f. Mr Waters has reported 25 species 

 and one variety from the Red Sea J, which are in the Sealark collection, 20 of these 

 being also in the Ceylon and Indian collections. This leaves 58 species and 11 varieties 

 in the present list that are new. records for these Eastern seas, namely : — 



jEtea recta Hincks. Bugula dentala Lamx. 

 Synnotum aviculare (Pieper). „ gracilis Busk. 



Gatenaria lafontii (Aud.). „ neritina (Linn.). 



„ otophora Kirk. „ „ „ var. mininia Waters. 



Vitaticella crystallina (Wyv. Th.). „ „ » ,. rubra nov. 



„ buskii (Wyv. Th.). „ „ » » tenuata nov. 



Scrupocellaria scrupea Busk var. dongolensis Waters. „ ,, >, „ ramosa nov. 



„ pilosa Busk. Beania intermedia (Hincks). 



„ obtecta Haswell. Membranipora normaniana (D'Orb.). 



„ frondis Kirk. „ radicifera'ii.\ncVs,\a,r.intermediaK.'iTk'p. 



„ macandrei Busk. „ pedunculata Manzoni. 



Caberea boryi (Aud.). „ variegata Hincks. 



Canda reti/ormis Pourtales. „ savartii (Aud.). 



Pollaploecium gilbertensis Maplestone. „ granulifera Hincks. 



* Herdman's Ceylon Pearl Fisheries Report — Supplementary Rep. xxvi, 1905. 



t Report on the Marine Polyzoa in the Collection of the Indian Museum, Records of the Indian Museum, 

 vol. i, pt. 3, No. 13, 1907. 



X Journ. Linneaii Society, London, Zool., vol. xxx, Oct. 1907 ; vol. xxxi, March 1909. 



SECOND SERIES— ZOOLOGY, VOL. XV. 18 



