506 , MR. A, W. WATERS ON 



.•d'Oi'b., aS'. rimosa Jull., S, tnarsu'p'ifera Busk, ^S^. tumida H., 

 S. levata H., *S'. Icevigata Waters. 



It is quite clear tliat there are several groups that can be 

 separated off from the old Schizopo^'ella, but until more living 

 and spirit specimens have been examined important characters 

 i-emain unconsidered. 



Log. Since I gave the localities of S. nivea Miss Thornely has 

 reported it from Amira,nte, 29 fath. ; Seychelles, 39 fath. ; Provi- 

 dence, 50-78 fath. It was procured from Wasin, Brit. East 

 Africa, 10 fath. (501) ; Has Osowamembe, Zanzibar Channel, 

 10 fath. (504); Prison Island, Zanzibar Channel, 10 fath. (505), 

 and with the large mucro from Wasin, 10 fath,, which may have 

 to be called var. wasinensis : collected by Crossland. 



SCHIZOPORELLA MONTPERRANDI Audouin. 



Lepralia moniferrandi Waters, Rep. Mar. Biol, of the Sudanese 

 Keil Sea, " Bryozoa," Journ. Linn. Soc, Zooh vol. xxxi. p. 171, 

 pi. xvii. figs. 15-18 (1909). To which add :^ 



ScMzoporella pachnoid.es MacG. Trans. Roy. Soc. Yict. vol. xxiii. 

 p. 180 (1886); Prod. Zool. Victoria, dec. xix. p. 314, pi. 186, 

 fig. 6 (1889). 



This must go to ScMzoporella as now limited (see p. 505). 

 It is closely related to S. galeata. but as I have said they must 

 probably be separated. 



Add: — Loc. Victoria {MacG.). Wasin, Brit. East Africa, 10 

 fath. (520), collected by Crossland. 



Gemellipora protusa Thornely. (PI. LXX. figs. 4-6.) 



Gemellipora protusa Thornelj^ Ceylon Pearl-Oyster Fisheries, 

 vol. iv. Polyzoa, p. 119, pi. iv. fig. 7 (1905). 



Zoarium incrusting. Zocecia rhomboidal, raised, with pores 

 round the border ; surface with few pores and granular. Oral 

 aperture clithridiate, very long, with large lateral contractions, 

 and the peristome frequently much raised, especially at the 

 side. At one side of the zooecium directed downwards a short 

 wide triangular avicularium with a stout bar, and sometimes a 

 second roundish avicularium near to the side of the aperture. 

 Ovicell small, raised, globose, with veiy thick walls, perforated, 

 much open in front and not closed by the operculum. 



Loc. Gulf of Manaar {Th.). Wasin, Brit. East Africa, 10 fath., 

 received dry (520), collected by Crossland. 



Trypostega venusta Norman. 



Lepralia venusta Norman, Ann. Mag. Nat. Hist. ser. 3, 

 vol. xiii. p. 84, pi. x. figs. 2, 3 (1864). 



Schizoj^orella, venusta Hincks, Brit. Mar. Poly. p. 276, pi. xxx. 

 figs. 6, 7 (1880) : Kirkpatrick, Ann. Mag. Nat. Hist- ser. 6, vol. i. 

 p. 76 (1888); " Hyd. & Polyzoa from the China Sea," Ann. Mag. 



