432 MR. J. J. SIMPSOK ON THE 



species of Neplithya (Koran and Danielssen). To these Hickson 

 added Gorgonia capensis. As embryos have also been noted by 

 Thomson and Henderson in Glirysogorgia flexilis, Geratoisis 

 gracilis, Disticlioptilum gracile, Pennatula indica, Umiellula 

 elongata, JFuniculina gracilis, Clavidaria pregnans, and C.parvula, 

 it is evident that viviparity occurs in very diverse types of 

 Alcyonarians. 



In some of the specimens under consideration embryos of 

 enormous size are present. These are situated either singly 

 or in pairs, though in some cases three are to be found. They 

 have a diameter of about 1 millim., and are apparently in 

 an advanced stage of development. They are oE the same 

 colour as the general coenenchyma and present a glistening 

 appearance. 



The spicules are very diverse in character. The following 

 are some of the more prominent types, with measurements of 

 length and breadth in millimetres : — 



(a) Coenenchyma. 



(1) Eods with at each end a whorl of three large papillose 



warts: 0'2x0-l, 0-2 x 0-15. 



(2) Tri- and quadri- radiate forms : O'lxO'l, 0-125 x 0-125. 

 , (3) Stellate forms with warty knobs : O'l X O'l, 0-075 X 0-075. 



(4) Short rods with large warty knobs irregularly arranged: 



0-2x0125, 0-15x0-1. 



(5) Irregular and intermediate forms : 0-2 x O'l, 0-07 X 0-07. 

 (6) Anthocodise. Similar forms, but slightly smaller. 



(c) Tentacles. Stout rough clubs with short handles, warty 

 at the end : 0-055 x 0-045, and 0-2 at the narrow smooth 

 part. 



Locality. Andaman Sea, 20 fathoms ; also surf-line. 



Previously recorded from : — Pacific Ocean {Wriglit Sf Sfuder) ; 

 Indian Ocean {Ellis, Pallas). Mediterranean Sea {Pallas). 

 America {Pallas). North Sea {Limicsus). Iceland {Olafsen Sf 

 Polvesen, Lamouroux). Antilles and United States {Lamouroux). 

 Straits of Sunda and Southern Coast of Sumatra {Ellis). East 

 Indies {Dana). Amboina {Milne-Edioarcls S( Saime). 



In conclusion, I wish to express my indebtedness to Prof. 

 Alcock, Indian Museum, Calcutta, for giving me an opportunity 

 of studying this very interesting and unique Alcyonarian, and to 

 Prof. J. Arthur Thomson for criticism and eucouracremeut. 



