ON RECENT POLYZOA. 537 
11. Membranipora craticula, Alder (p. 147, pl. xix. fig. 7). 
12. 5 spinifera, Johnston (p. 149, pl. xix. fig. 1, &.). 
1S. f flustroides, Hincks (p. 151, pl. xix. fig. 2). 
14. 3 discreta, Hincks (p. 152, pl. xix. figs. 8, 9). 
a5. 5 curvirostris, Hincks (p. 153, pl. xx. figs. 5, 6). 
16. 3 unicornis, Fleming (p. 154, pl. xx. fig. 4). 
7. 4 Dumerilii, Aud. (p. 156, pl. xx. fig. 3). 
18. “ solidula, Alder and Hincks (p. 158, pl. xx. 
figs. 7, 8). 
19. a, aurita, Hincks (p. 159, pl. xxi. figs. 5, 6). 
20. a imbellis, Hincks (p. 160, pl. xx. figs. 1, 2). 
b. With a calcareous lamina. 
21. Membranipora Flemingii, Busk (p. 162, pl. xxi. figs. 1-3). 
22. “ cornigera, Dusk (p. 164, pl. xxi. fig. 4; pl. xxi. 
fig. 3). 
23. Rosselii, Aud. (p. 166, pl. xxii. fig. 4). 
24, 5 trifoliam, S. Wood (p. 167, pl. xxii. figs. 5, 6). 
25. i minax, Busk (p. 169, pl. xxii. figs. 2 to 2c). 
26. + nodulosa, Hincks (p. 170, pl. xx. fig. 9). 
As the whole of the above species are described and figured in the 
* Brit. Mar. Polyzoa,’ I have not thought it necessary to load my text with 
the synonymy, range in space and time, and the localities, given so fully 
by Mr. Hincks. This will be givenin tabular form. Some of the species 
are very widely distributed round our coast, others are more restricted 
in their range; but as no one would attempt to describe the Polyzoa 
without consulting this book, I believe the mere name of the species 
will be a sufficient introduction to future students. From what I have 
seen of Mr. Shrubsole’s specimens, collected from Llandudno, I may say 
that in this locality the collector may gather a rich harvest of forms. 
_ At Hastings, Devon, and Cornwall, both from the shore débris and also 
from deep-sea dredgings, many species may be collected; but as some 
few of the localities are really classical hunting grounds, I shall consider 
it to be an advantage, rather than a disadvantage, to give separate lists 
—withont much special details—of these places. 
The following appear in Mr. A. W. Waters’s papers on the ‘ Bryozoa 
of the Bay of Naples,’ but I have only numbered those species which 
are really additions to the British list (‘Ann. Mag. Nat. Hist.,’ 
Feb. 1879, pp. 121, 122). 
Membranipora pilosa, Pall. 
membranacea, Linn. 
: + Rosselii, Awd. 
vs Flemingii, Busk, pl. xiii. fig. 2 (see No. 228). 
‘ - Var. gregaria, Heller, pl. xiii. fig. 5 
: =M. gregaria, Heller, ‘Die Bryoz. des 
Adriatic ’ 
= M. aperta, Manzoni, ‘ Castrocaro.’ 
27. a angulosa, Reuss., pl. xiii. fig. 3. 
For very full details of fossil species of Membranipora, which range 
from Recent to Eocene both in Europe and Australia, see the ‘ Fifth Brit. 
Assoc. Report on Fossil Polyzoa,’ 1884, Montreal (mzhi), Nos. 42 to 73. 
