302 A. W. WATEES ON CHILOSTOMATOTIS BEYOZOA TEOIVI 



rather larger, and these are sometimes pressed in on the front, 

 giving the appearance of a round depression ; but perfect specimens 

 seem to be globular. The surface is smooth and the peristome is 

 but little raised. The oval aperture is about 0*12 millim. with six 

 margiiial spines. I feel some doubt about this determination, as 

 the nature of the appendages is not distinguishable, and certainly 

 many cells had neither vibracula nor avicularia. 

 Loc. Eiver-Murray Cliffs, Aldinga. 



57. Ketepoea maesupiata, Smitt ; Waters, Quart. Joum. Geol. Soc. 

 vol. xxxvii. p. 342, pi. xv. figs. 34-36, pi. xvii. figs. 59, 61, 76, 

 77; vol. xxxviii. pp. 275, 511 ; and vol. xxxix. p. 439, pi. xii. 

 figs. 13 & 21. 



An imperfectly preserved specimen from Aldinga was sent over by 

 Professor Tate marked " R. vibicata, Sturt ;" but it is impossible to 

 make specific comparison with the fossils found by Sturt, and this 

 does not seem to be the M. vibicata of Goldfuss. The oviceU has a 

 double cleft. 



58. Ehynchopoea bispinosa, Johnston. 



See Hincks, Cat. Mar. Polyzoa, p. 385, pi. xl. figs. 1-5. 



A specimen from Eiver-Murray Clifis has a large avicularium 

 raised as a mucro in front of the aperture, and frequently at the 

 base of this on one side there is a smaller avicularium. 



Loc. Living : British seas ; Mazatlan ; Adelaide ; Yietoria Bank, 

 off S.E. Brazil, 33 fathoms {Ridley). 



59. Cellepoea coeonopxjs, S. Wood. 



Cellepora pumicosa, Linn, (non Busk), Syst. N'at. 12th ed. p. 1286. 



Cellepora coronojpus, S. Y. Wood, Ann. & Mag. Nat. Hist. vol. xiii. 

 p. 13 : Busk, Crag Polyzoa, p. 57, pi. ix. figs. 1, 2, 3 ; Manzoni, Bry. 

 Poss. Ital. Cont. 4, p. 13, pi. iii. figs. 18, 19 ; Waters, Ann. & 

 Mag. Nat. Hist. ser. 5. vol. iii. p. 192. 



Cellepora tubigera, Busk, loc. cit. p. 60, pi. ix. figs. 8-10. 



Cellepora gambierensis, Busk, Quart. Joum. Geol. Soc. vol. xvi. 

 p. 261 (named only, no description) ; T.-Woods, Geol. Obs. in 

 S. Australia, pp. 74 & 85 ; T.-Woods, Trans. E. Soc. Yict. vi. p. 4, 

 pi. i. fig. 3. 



Celleporaria gambierensis, Stoliczka, Foss. Bry. der Orakei Bay, 

 p. 141, pi. XX. fig. 7. 



Although this species is reported to be extremely common in 

 Australia, a badly preserved specimen from Aldinga, which was sent 

 over by Professor Tate marked " G. gambieriensis," is the first that 

 I have seen, and as the descriptions laid most weight upon the 

 colonial growth, it was impossible to make any comparisons. 



It grows in solid round branches about 8 millim. in diameter, 

 and anastomoses regularly. The aperture of the zooecia is round, 

 about 0'13-0-20 miUim., with a small avicularium, apparently below 

 the mouth. No zooecial avicularia or oviceUs have been found on 

 the specimen. 



