258 Mr. A. W. Waters on Australian Bryosoa. 



A fossil, which I described as F. oraheiensis, Stol. (Quart. 

 Journ. Geol. Soc. vol. xl. p. 687), from Mount Gambler, with 

 oral aperture about half the size, has the ovicell on the dorsal 

 surface, in this respect corresponding with /. irregularis^ 

 Menegh., and from this it will be seen that there is consider- 

 able uncertainty in the determination when the ovicell is not 

 preserved. 



It would seem that /. irregularis and F. oraheiensis should 

 be removed to another genus on account of the position of 

 the ovicell. There is also Hornera tuhulosa, Meneghini, 

 which may be this species. 



Loc. Naples {W.) ; Victoria [MacG.) ] Holborn Island, 

 Queensland, 20 fath. Fossil : Rhodes. 



82. Tubulijyor a fimbria^ Lamk. 



There are two small pieces from Bondi Bay, Sydney, which 

 do not seem to differ in size of the zcoecial tubes or the 

 arrangement of the zooecia from the European species ; but 

 from small pieces the specific determination is doubtful. The 

 ovicells are inflations near the end, with wide funnel-shaped 

 openings. ' 



83. Tul)uli]Jora fimhria, Lamk,, forma /)M?c7ira, MacG. 

 (PI. VII. figs. 1, 2, 3.) 



Type Tuhulipo7'aJimhria, Larak. Hist. Anim. sans Vert. ed. 1, vol. ii. 

 p. 163 ; and for synonyms see Hincks, Brit. Mar. Polyz. p. 448, 

 pi. Ix. fig. 3, and Busk, ' Challenger' Eep. p. 23, pi. v. fig". 2. 



Tubulipora pulchra, MacGillivray, Trans. Roy. Soc. Vict. vol. xxi. 

 p. 95, pi. ii. fig. 1. 



There are a large number of specimens from Vaucluse 

 Point, which have grown upon seaweed and have a very 

 interesting attachment. The primitive disk has small den- 

 tate projections all round, and besides these there are all over 

 the dorsal surface broad tubular teeth at short intervals, 

 arranged in curved lines following the outlines of the zooecia. 

 Mr. Busk, in '' Zool. of Kerguelen Island," Trans. Eoy. Soc. 

 vol. clxviii. p. 19, pi. x. figs. 20-25, records a similar denticu- 

 late border of the primary disk of what he considers T. organ- 

 izans, d'Orb., but does not mention any otlier attachment. 

 Idmonea serpens also throws out dentate processes from the 

 side of the zoarium, but they can scarcely be compared with 

 those now described. 



The zoarium is flabelliform, with sometimes two or three 

 lobes ; but none of the specimens are large or are much 

 divided. The aperture of the zooecia is only 0'07-0'08 millim. 



