342 



ME, A. W. WATERS ON TERTIARY CYCLOSTOMATOUS 



0-12 millim. The width of the zocecia remains constant throughout 

 the length, which is usually about 1 millimetre. 



A specimen from the Varangian of St. Croix (Jura) is about the 

 same size, but the zooecia commence much narrower and then widen 

 out. 



Loc. Living : British and Northern Seas, New Zealand ; Tristan 

 d'Acunha, 60-90 fathoms. Fossil : Cretaceous (Valangian and 

 Senonian) of Europe ; Oligocene, Sollingen • Waipukurau. 



9. Stomatopora major (Johnst.). 



Alecto major, Johust. Brit. Zooph. 2nd ed. p. 281, pi. xlix. figs. 3, 

 4 ; Seguenza, "Le Formaz. Terz.," Accad. dei Lincei, cclxxvii. p. 297. 



66 Proboscina intermedia" Novak, Bry. der Bohm. Kreideformation, 

 Denkschr. k.k. Akad. vol. xxxvii. p. 102, pi. v. figs. 1-13. 



For other synonyms see Hincks's Brit. Mar. Polyzoa, p. 427, pi. 

 lviii. and pi. lxi. fig. 1 ; Pergens, Plioc. Bry. von Bhodos, p. 9. 



The branches are 0*8-l*0 millim. wide, and the zocecial aperture is 

 about 0*12 millim., the extremities sometimes in irregular transverse 

 rows. This is very much like Proboscina crassa, JElomer, in d'Or- 

 bigny, Pal. Franc, p. 848, and perhaps should be united to it. 



Loc. Living : British and Northern Seas ; Queen Charlotte 

 Islands (H.). Fossil : Cretaceous of Bohemia ; Crag, England ; 

 Pliocene (Astian) of Calabria ; near Napier ; Waipukurau ; Tommy 

 Gully (Petane) ; and Trig Station. 



10. Stomatopora dilatans (Johnst.). 



Alecto dilatans, Johnst. Brit. Zooph. 2nd ed. p. 281, pi. xlix. figs. 

 5-8. 



For synonyms, see Hincks, Brit. Mar. Polyz. p. 429, pi. lvii. fig. 3. 

 Is not this Criserpia dichotoma, d'Orb. ? 



Loc. Living : Northern Seas. Fossil : Crag, England ; Tommy 

 Gully (Petane) ; Trig Station, 



11. DlASTOPORA SUBORBICULARIS, Hilicks. 



Diastopora suborbicularis, Waters, Quart. Journ. Geol. Soc. vol. xl. 

 p. 689. 



A specimen from near Napier has both zoarium and zocecia about 

 twice the size of those of the following species. The ovicells are 

 large, enclosing several zocecia and radially elongate. 



Loc. Living : British and Northern Seas. Fossil : Muddy Creek, 

 Mount Gambier (Australia) ; near Napier and Tommy Gully (Pe- 

 tane). 



12. Diastopora sarniensis, Norm., var. perangtjsta, nov. 



A fossil from Waipukurau and a recent specimen from New 

 Zealand are identical in size, the zoarium being 0*25 millim. in dia- 

 meter. The zocecia radiate irregularly from the centre, with the 

 outlines very distinct and the ends erect ; the younger zooecia run by 

 the side of the older ones for some distance, thus causing the zooecia 



