380 VINE : POLYZOA AND MK llOZOA UF YORKSHIRE AND NORFOLK. 
27. Diastopora regularis, d'Orb. 
1850. D. regularis d'Orb., Terr. Cret. v., pi. 636 (tig. 10 only). 
1851. D. densata d'Orb., ibid, pi. 637, figs. 1, 2. 
1851. D. orbicula d'Orb., ibid, pi. 637, figs. 3, 4. 
1852. Bereiiicea regularis d'Orb., p. 865, ibid, pi. 636, figs. 9, 10, 
pi. 637, figs. 3, 4. 
1869. „ „ Wiltshire, Ann. Mag. Nat. Hist., vol, 
XXV., p. 187. 
1890. Diastopora regularis Vine, Quart. Jour. Geol. Soc, vol. xlvi., 
p. 476. 
A well-marked and characteristic species as restricted above, 
and the only one that I have met with. 
Habitat : On Terebratiila hiplkata. 
28. Diastopora radians Novak., Variety ] 
1877. Berenicea radians Novak, Bryoz. bohm. Kreidef., p. 98, 
pi. iv., figs. 15, 18. 
1890. Diastopora radians ? Vine, Quart. Journ. Geol. Soc, vol. 
xlvi., p. 477. 
The example which I place under Novak's name, as a variety of 
his species, is the only one that I have met with amongst the Red 
Chalk fossils. 
Habitat : Terebratiila hlpUcata. 
29. Diastopora papillosa (?) Reuss. 
1846. Diastopora papillosa, Reuss. Verst. bohm. Kr., p. 65, pi. xv., 
figs. 44, 45. 
1847. „ papillosa, d'Orb., Prodr. ii., p. 266. 
1847. ,, oceanica, d'Orb., ibid. 
1851. disciformis, Hag. Bryoz. Maastr. Kreid., p. 16, 
pi. X., f. 7. 
1852. Berenicea papillosa, d'Orb., Terr Cret. v., p. 866, pi. 639, 
figs. 6, 7. 
1890. Diastopora papillosa, Vine, Quart. Journ. Geol. Soc, vol. xlvi., 
p. 477. 
The Red Chalk form is disciform, one colony overlapping another, 
originating cells central. 
Habitat : On Terebratiila b'qjUcata. 
