VINE : POLYZOA AND MTCROZOA OF YORKSHIRE AND NORFOLK. 381 
30. Diastopora Jessoni, Vine. 
1890. Diastopora Jessoni, Vine, Quart. Journ. Geol. Soc, vol. xlvi., 
p. 478, pi. xix., figs. Tia, 12b. 
This beautiful little species is only known to me by a few 
examples, the most perfect of which is taken as the type.. My reasons 
for naming it after Mr. Jesson are given in the descriptive text in 
the Quart. Journ. Geol. Soc, p. 478. 
Habitat : On Tertebratula hiplicata ; Nautilus albeusis, d'Orb. 
31. Diastopora sulcata, Seeley. 
1866. Cellulipora sulcata, Seeley, Ann. Mag. Nat. Hist., vol. xvii, 
p. 181. 
" The form of the colony in this species is similar to that of 
Cellulipora spongiosa, d'Orb. (D. spongiosa, d'Orb., 1850, Terr. Cret. 
v., p. 874, pi. 637, f. 5, 6), with which it is most closely related. . . 
D. Sowerbyi, Lonsdale, belongs^ to this genus (Cellulipora), and is 
nearly related, and may even be this species, but from the important 
characters being overlooked in the description and figure, I cannot 
determine the point." Seeley. 
32. Unitubigera papyracea, d'Orb. 
1850. Actinopora papyracea, d'Orb. 
1852. Unitubigera papyracea, d'Orb., Terr. Cret. v., pi. 643, 
figs. 12, 14. 
1890. ,, „ Vine, Quart. Journ. Geol. Soc, vol. 
xlvi., p. 479. 
This species is rare in the Red Chalk, but the example that I 
place here, though almost unique, is very distinct. Only one other 
broken specimen has been found. 
Habitat : On Terehratula bipUcata. 
Genus Entalophora, Lamx. 
The following may be recorded but examples are very rare, and 
very ill preserved. 
33. Entalophora proboscidea, Edw. 
1890. Entalophora ? sp. Quart. Journ. Geol. Soc, xlvi., p. 479. 
Habitat : On Spondylus. Red Chalk, Hunstanton. 
