BRY0Z0A FROM AUSTRALIA. 431 



justified in placing C. intemodia among the Catenicellce ; but I think 

 that it will be granted that the present variety shows without any 

 doubt that it was correctly placed. 



7. Catekecella haryeyi, W. Thomson. Plate XII. fig. 5. 



Catanicella Harveyi, VTyvilje Thomson, " On new Genera and 

 Species of Polyzoa," Zool. Bot. Assoc. Dublin, 1859, vol. i. p. 81, 

 pi. vii. figs. 1, 2. 



The avicularia in this species are somewhat variable. In most 

 cases they are of moderate size at the side, while in some they are 

 found on raised tubular projections, as figured (5) ; in others there 

 are two fairly large avicularia directed laterally, and not raised. 

 In one specimen there is on one side an enormous avicularium 

 almost as large as the zooecium. Aperture 012 millim. wide. The 

 proximal edge of the aperture is straight. 



Thomson, in his description, says that " the cell-walls are very 

 evidently formed of two membranes, which remain distinct." 



Log. Living: Bass's Straits (TJi.). Fossil: Waurn Pouds, Bird 

 Pock, Muddy Creek. 



8. Catexicella ventricosa, Busk. 



Catenieella ventricosa, Busk, Cat. liar. Pol. p. 7, pi. ii. figs. 1, 2, 

 pi. iii. figs. 1-5. 



Catenieella ventricosa, MacGillivray, Nat. Hist. Victoria, decade iii. 

 p. 18, pi. xxiv. fig. 3. 



The specimen from Bird Pock has hardly any lateral process, and 

 has the avicularian opening more gaping than in recent species. 

 However, some recent specimens in my possession have not such marked 

 lateral processes as are usually figured. Busk's figure seems to show 

 that the upper pore sometimes forms a notch ; but none of my 

 specimens show more than a faint trace of one. 



Log. Living: Bass's Straits, 45 fathoms (J5.), Victoria (JfacG.), 

 Tasmania (A. W. W. coll.), Yan Diemen's Land (Harv.), Port 

 Fairy (Dawson). Fossil : Bird Hock. 



9. Catekecella hastata, Busk.*. 



Catenieella hastata, Busk, Cat. Mar. Pol. p. 7, pi. ii. figs. 3, 4 ; 

 MacGillivray, Nat. Hist, of Victoria, decade iii. p. 19, pi. xxiv. fig. 4. 



I have specimens of C. hastata from Victoria sent to me marked 

 C. compressa, and also a specimen so named without further indi- 

 cation than Australia, which, upon examination, turns out to be 

 hastata. The fossil does not seem to differ from the recent form in 

 size or in any other respect. 



hoc. Living: Bass's Straits, 45 fathoms, New Zealand (B.), Victoria, 

 frequent (MacG.). Fossil : Bird Pock and Waurn Ponds. 



10. Catenicella tafrina, Busk. 



Catenieella taurina, Busk, Cat. Mar. Poly. p. 12, pi. xi. 



There is one biglobulus from Bird Pock which is not very well 



