ON RECENT POLYZOA. 577 
_ 23, Schizoporella discoidea, Busk, op. cit. pl. xxx. figs. 8, 9 
. = Alysidota conferta, Busk, ‘Rep. Brit. Assoc.’ 
Loc.: Shetland; Antrim; Hastings; Guernsey ; 
Madeira; Algiers; Birterbuy Bay. 
c. Usually without avicularia. 
24, Schizoporella sinuosa, Busk, op. cit. pl. xlii. figs. 1-6. 
Var. a, armata, pl. xlii. fig. 2. 
Loc.: Shetland; W. coast Scotland ; Spitzbergen, 
and other Arctic localities ; Gulf of St. Lawrence. 
(9.) 3 Cecilii, Aud., op. cit. pl. xliii. fig. 6. Loe.: 
Jersey; Guernsey; Algiers; (?) Adriatic; N aples; 
Cornwall; Australia (Miss Jelly). 
' 25. A cruenta, Norman, op. cit. pl. xxx. fig. 5. Loe.: 
‘ Shetland (rare); Peterhead (rare) ; Orkney ; 
Channel Islands; Nova Zembla; Greenland. 
26. s hyalina, Linn., op. cit. pl. xviii. figs. 8-10. 
Var. a, cornuta, pl. xlv. fig. 2 (Australia; Cali- 
fornia; New Zealand, &c.) 
» , incrassata. 
» ¥, tuberculata. 
Loc.: Widely distributed. Coasts of Great Britain 
and Ireland ; and, as regards geographical range, 
cosmopolitan. 
d. Avicularia on a distinct area above the cell. 
27. Schizoporella venusta, Norman, op. cit. pl. xxx. fig. 6 
; = Gemellipora glabra, forma, striatula, Smite. 
Loc.: Off Guernsey; Florida. 
The above are the whole of the British species given by Mr. Hincks. 
(11.) Schizoporella triangula, Hincks, Polyzoa Bass’s Straits, Liverpool 
a Address, Hincks, April 1881. 
28. é tumida, Hincks, Polyzoa Bass’s Straits, Ibid. 
29. 43 acuminata, Hincks, Polyzoa Bass’s Straits, Ibid. 
30. is insignis, Hincks, ‘Annals,’ Aug. 1881, p. 134, 
pl. v. fig. 10. ‘As bearing on the morpho- 
logical relations’ (of the special pore of the 
Microporellidz) ‘of this portion of structure, an 
observation by Mr. Ridley (‘“ Annals,” June 
1881, p. 448, &e.) is interesting. He has 
noticed a Myriozoidan stage in the develop- 
ment of a Porinidan cell, in which the pore 
had not yet become isolated, but was connected 
by a gap with the orifice.—Hincks, ‘ Annals,’ 
Aug. 1881, p. 185. Loc.: Africa. 
“A incrassata, Hincks (‘ Annals,’ Feb. 1882, p- 124, pl. 
v. figs.1, 1a). Loc.: Africa, on coral (Miss Jelly). 
FA levata, Hincks (ibid., pl. v. fig. 4). Loc.: Australia, 
on weed (Miss Jelly). 
* aperta, Hincks (ibid., pl. v. fig. 3). Loc.: Singa- 
pore (Miss Jelly). 
PP 
