BRYUZOA FROM ZANZIBAR. 477 



are probably testes, or connected with the testes, nnd in all the 

 specimens prepared these bands are found in all the zocecia, but 

 tliere are no traces of ovaria, so it may be that the male organs 

 are on one colony and the female on another. 



In one mount with about 130 zooecia i\\\ contain fully developed 

 polypides, showing that degeneration does not always take place 

 at such short intervals as has been often stated. There are, 

 however, large buds developing by the side of the active 

 polypides. 



Loc. Louisiade Archipelago, Bass's Straits (B.). Prison Island, 

 Zanzibar Channel (505), 8 fath. ; Ras Osowamembe, Zanzibar 

 Channel, 10 fath. (504 & 514) ; Wasin, Brit. E. Africa, 10 fath. 

 (507), collected by Crossland. 



Other species of tropical Scrupocellaria, not however found in 

 the Crossland collections, are S. delilii Aud. ; *S'. ornithorhynchtis 

 B. ; S. ciliata Aud. ; S. annectans MacG.; /S. diadema B.; /S. mimtta 

 Kirkp. ; S. clypeata Hasw. ; 8. obtecta Hasw. 



Scrupocellaria cervicornis Busk. (PI. LXIX. figs. 3, 4.) 



Waters, " Rep. Sudanese Red Sea," p. 166. 

 Log. add Ras Osowamembe, 10 fath. (504) ; Wasin, Brit. East 

 Africa, 20 fath. (522), collected by Crossland. 



Scrupocellaria macandrei Busk, (PI. LXVIII. figs. 5, 6.) 



Scrupocellaria ')nacandjrei Busk, B. M. Cat. Mar. Polyzoa, p. 24, 

 pi. xxiv. figs. 1-3 ; and add to Miss Jelly's synonj'-ms : — Haswell, 

 W. A., " Polyzoa from the Queensland Coast," Proc. Linn. Soc. 

 N. S. Wales, vol. v. p. 37 ; Philipps, " Rep. on the Polyzoa," 

 Willey's Zool. Results, pt. iv. p. 442 (1899) ; Calvet, ' Exp. Scient. 

 du Travailleur et du Talisman,' p. 375 (1907); Thornely, " Mar. 

 Polyzoa of the Indian Ocean," Trans. Linn. Soc, Zool. vol. xv. 

 p. 140 (1912). 



This belongs to the S. scrupea group. There are three outer 

 spines and one inner near the peduncle of the scutum. The 

 outer spines are often very long. The groove of the vibraculum 

 is continued beyond the vibracular chamber, passing the median 

 line of the zooecium, in this respect somewhat resembling aS'. in- 

 aurvata Waters. There are two vibracula at a bifurcation. The 

 ovicell is smooth, placed somewhat diagonally, and has a clear 

 space on the front. The vibracular seta is about the length of a 

 zooecium, smooth but flat in the middle, so that perhaps we may 

 call it sickle-shaped. The oi'al aperture is placed diagonally 

 back, as in Caberea darwhiii Busk. 



Loc. Cape Verde Island, 1070-1150 fath. {B.) & 110-180 met. 

 (Calv.) & Crossland Expedition ; St. Paul's Rocks, IST. Atlantic 

 (B.); Coast of Spain (B.) ; Adriatic {Heller) ; Lifu {Phil.) ; Queens- 

 land {Haswell); Providence, 50-78 fath., Amirante, 29 fath., 

 Farquhar Reef, Cargardos, 30 fath., and Seychelles, 34 fath. 



