166 MARINE BIOLOGY OF THE SUDANESE RED SEA. 
distinguished. The C. retiformis from Zanzibar has only a few anterior 
avicularia, and these are in the neighbourhood of the bifurcation, whereas 
Miss Philipps mentions them as general along the median line. Smitt did 
not find any, and in the Japan specimen there are but a few large avicularia 
with narrow mandibles, in this case also near the bifurcation. 
Maplestone says 16 tentacles, and this is the number I find in the Red Sea 
specimens. 
Loc. Australia ; Tasmania; New Zealand ; Timor ; Brazil (fide Philipps), 
Enoshima, nr. Yokohama, Japan (Waters coll.) ; lat. 16° 45’ N., long. 
40° 30' W., collected by Lofter & Siemens ; Gimsah Bay, Gulf of Suez, 
collected by Hartmeyer. 
SCRUPOCELLARIA CERVICORNIS, Busi: 
For synonyms see Miss Jelly’s Catalogue, and add :— 
Haswell, W. A., “ Polyzoa from the Queensland Coast,” Proc. Linn. Soc. N.S. Wales, 
vol, v. p. 37; Meissner, Jena Denk. vol. viii. p. 730; Thornely, “ Manaar,” p. 109; Records 
of Indian Mus. vol. i. pt. 3, no. 13, p. 181. 
A specimen from Ras el Millan, Red Sea, has the outer spine cervicorn, 
or at least divided. This is also the case in a specimen from Lizard Island, 
Queensland, in my collection ; on the other hand, in a specimen from Wasin, 
Brit. East Afriea, there is a very stout spine on each side, and both are 
usually divided; the anterior and lateral avicularia are small, and the vibracular 
chambers are longer thanin the Red Sea specimen. I do not find the lateral 
spines by the avicularium, to which Hincks alludes, and doubt whether the 
species he described was really cervicornis. 
Loc. Cumberland Island (Busk) ; Victoria (J/acG.) ; Queensland (Hasw. 
S Wat.) ; Gulf of Manaar (7h.) ; Florida, 7-17 fath. ; Amboina (Meissner) ; 
Arabian Sea (Brit. Mus.) ; Ras el Millan, Sinai coast, Red Sea, collected 
by Hartmeyer; Wasin, Brit. East Africa (522), 20 fath., collected by 
Crossland. 
MEMBRANIPORA TRIFOLIUM, form mrvor, Hincks. 
Membranipora trifolium, form minor, Hincks, Ann. Mag. Nat. Hist. ser. 5, vol. vi. (1880) 
p. 87, pl. 11. fig. 6; op. cit. ser. d, vol. xv. (1885) p. 255, pl. 8. fig. 7; Waters, op. cit. 
ser. 7, vol. xvii. (1906) p. 14. 
Membranipora papillata, Busk, Zool. Chall. Exp. vol. x. pt. xxx. p. 66, pl. 33. fig. 1 
(1884). 
Loc. Bahia and Tahiti (Hincks) ; Philippine Islands ( Chall.) ; Wanganui, 
Chatham Islands (Waters) ; Singapore (I saw a specimen in Jullien’s 
collection); Um el Jerman, Gulf of Suez, Red Sea, collected by 
Hartmeyer. 
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