434 A. W. WATEES ON EOSSIL CHILOSTOMATOUS 



22. Mehbeanipoea lusoeia, var. coaectata. Plate XII. fig. 20. 



Membranipora lusoria, Waters, Foss. Chil. Bry. from S.W. Yic- 

 toria, p. 324, pi. xiv. fig. 14, pi. xviii. fig. 82. 



The specimen from Waurn Ponds has two large bosses nearly 

 meeting across the opesia (aperture). 



The figure is by an accident drawn slightly too large. 



This is allied to Cellaria cactiformis, d'Orb. (Pal. Fr. pi. 651. 

 figs. 1-4). 



Log. Fossil : "Waurn Ponds. 



23. Membeancpoea aeticulata, Waters. 



Membranipora articulata, Waters, Foss. Chil. Bry. from Mt. Gam- 

 bier, p. 264, pi. viii. figs. 15, 16. 



24. Membeanipoea oculata, Busk. Plate XII. fig. 22. 



Nellia oculata, Busk, Cat. Mar. Pol. p. 18, pi. lxiv. fig. 6, pi. lxv. 

 fig. 4. 



Nellia oculata, Smitt, Floridan Bryozoa, p. 3, pi. i. figs. 53, 54. 



Nellia oculata, MacGillivray, Nat. Hist. Vict, decade v. p. 51, 

 pi. 49. fig. 5. 



In the fossil the avicularia are larger and more raised than in 

 any recent specimen which I have seen, and there are four spines 

 above the aperture of each zocecium, on which account it should 

 perhaps be called var. sjpinosa. Length of opesia 0*15 millim. 



Loc. Living : Torres Straits, 9 fathoms (B.) ; Bass's Straits {Thorns.) ; 

 Florida, 13-138 fathoms (Sm.) ; Qneenscliff, parasitic on algse and 

 zoophytes (MacG.) ; Holborn Island, Queensland (Haswell) ; Cape 

 Grenville, K.E. Australia, 20 fathoms (A. W. W. coll.) ; Piper 

 Islands, 9 fathoms {A. W. W. coll.). Fossil : Waurn Ponds. 



25. Membeanipoea aeetbtusa, d'Orb. Plate XII. fig. 19. 



Eschara areihusa, d'Orb. Pal. Franc, p. 127, pi. 666. figs. 4-6. 



Escliara actcea, d'Orb. loc. cit. p. 116, pi. 662. fig. 17. 



Eschara allica, d'Orb. loc. cit. p. 125, pi. 665. figs. 8, 10. 



The specimen from Muddy Creek has 12 longitudinal rows of 

 zooecia in a compressed branch in the Escliar a-foim. The zooecia 

 are of the same size as those in a specimen I collected from the Cre- 

 taceous beds of Koyan (France), and the aperture (opesia) is also 

 of the same size and in a similar position ; the sides of the zooecia, 

 however, are somewhat straighter and not so much contracted below 

 as in the Chalk specimen. In the Royan specimen there is a 

 zooecial avicularium (onychocellaire), while I do not find one in 

 the Australian fossil. 



This is also allied to Semieschara disjparilis, d'Orb., and many 

 other species described by d'Orbigny. 



Width of the opesia 0'16 millim., length of opesia 0*25 millim. 



Loc. Cretaceous of France. Muddy Creek. 



