vine: notes on British eocene polyzoa. 
169 
3. Membranipora Lacroixii, Busk. 3a, Communication pores in 
side walls. Up. Eocene, Oolwell Bay. 
4. Biflustra eocena, Busk. 4^, Natural size of fragment. 
5. symmetrica, Meu. et Pergens. Foreign example. 
6. Membraniporella nitida, var. eocena, n. var. Natural size. 
Qa. „ „ Four cells from about the middle of 
colony, showing Ooecia and avicularia, 
one cell reversed as in the colony. 
Qb. ,, Zoa'cia, rather more perfect, with Ocecia 
and avicularia. 6c, dotted bar. 
7. Microporella violacea, var. fissa. Waters. Colony magnified 
about twice. 
7a. ,, „ var. a. A few cells magnified to show 
character. 
Ih. „ „ var. b. 
8. Eschara ? Brongniartii, M. Ed. Natural size and enlarged, 8a. 
9. Eschara ? (Membranipora ?) sp. 9-9a. Natural size and magni- 
fied : 96, to show the Escharaform character of example. 
10. Cellepora petiolus, Lonsd. Four examples, showing the variety 
of size in this peculiar species, which in 
the Bracklesham beds are most abundant. 
Examples vary much from size of figures 
to nearly ^ inch in diameter. 
10a. ,, A small colony enlarged. 
106. „ „ Side view, showing point of attachment. 
11. Lunulites urceolata, Lamk. Fig. 11a. A few cells with lozenge- 
shape avicularia, 116 reverse. 
12. Idmonea coronopus (Defr.) Lonsdale. Natural size and mag- 
nified. 
13. „ gracillima, Reuss. Natural size, and side view 
enlarged. 
14. Hornera sp. (minuta sp. n. ?) Unique. 
15. „ (flabelliformis ? Blainv.) The whole of the colony 
depicted ; enlarged about 1^ times ; embedded in 
matrix, reverse only ; branches flat, striated, and 
slightly rounded or angular. 
