Polyzoa. 287 



INVERSIULA NUTRIX. 



1888. Inversiula nutrix, Jullien, ' Mission Scientifique Cap Horn.' Zoologie. 

 Tom. VI., ' Bryozoaires,' p. 44, PI. IV., fig. 8. 



The single example of this species encrusts the coils of a specimen 

 of Sinrorlis antardica. The median pore differs slightly from that of 

 the specimens from Cape Horn figured by Jullien (Bryozoa, Cape 

 Horn, p. 44, PI. IV., fig. 8) in being orbicular rather than semi- lunar, 

 and in having three or four denticles instead of only two. The 

 operculum (0 • 192 mm. in long, diameter) has a thickened rim and a 

 shagreened surface. 



The bosses are probably degenerate avicularia ; incineration 

 reveals oval depressions for mandibles. No oa3cia are present. 



Localit]/. — Cape Adare, 10 fathoms. 



Distribution. — Cape Horn ; Cape Adare. 



SCHIZOPORELLA HYALINA. 



1766. Cellepora hyalina, Linnaeus, Syst. Nat., Ed. XII., p. 1286. 

 1880. Scliizoporella hyalina, Hincks, Brit, Mar. Pol., p. 271. 



Several patches occur, encrusting seaweed. 

 Locality. — Cape Adare, 8 fathoms. 

 Distrihution. — Cosmopolitan. 



SCHIZOPORELLA HYALINA, var. discnta. 



1854. Lepralia discreta. Busk, Brit. Mus. Cat., p. 85, PI. CI., figs. 3, 4. 



I87y. Lepralia hyalina, var. discreta, Busk. Phil. Trans., Vol. CLXVIII . 

 p. 107. 



1889. Schizoporella hyalina, var. discreta. Jelly, 'Syn. Cat Bryozoa,' p. 228. 



Patches encrust seaweed. 

 Locality, — Cape Adare, 8 fathoms. 



Distrihution. — Falkland Islands ; Puegia ; New Zealand (Brit. 

 Mus. Coll.) ; Swain's Bay, Kerguelen ; Cape Adare ; California. 



SCHIZOPORELLA EATONL 



1879. Lepralia eatoni. Busk. Phil. Trans., Vol, CLXVIII., p. 196, PL X., 



figs. 7, 8. 



1889. Schizoporella eatoni. Jelly, Syn. Cat. Mar, Bryozoa, p. 226, 



