ON RECENT POLYZOA. 667 
5, Pre-glacial.—lI.e. Wexford, Chillesford, Weybourn Sands, Bure 
Valley, and all beds between the last and the succeeding Arctic or First 
Glacial period. 
6. Arctic.—Bridlington, Tangy Glen, Erie, Errol, Fife, and other beds 
in and underlying the Boulder Clay. 
> 7. Paleolithic—Garvel Park, Dalmuir, and most of the Scottish 
beds in the north; the Lancashire drifts, Selsey, Portrush, and the Cam- 
bridgeshire districts; Fauna indicating warmer conditions than now 
prevail. 
(Second or later glaciation, possibly, than some of the Scotch beds 
above. ) 
8. Neolithic. — Belfast and Estuarine Clays generally, not very 
fossiliferous. 
Fossil Tertiary Polyzoa. 
o |Z (3 [3 lz Zie2 
Ben] tp) me wel S|/812 | 4 
= S| SISSIES] | 2] S| 2 ao 
BO| EO | mVleO) s/ 4] 8) 8 
S43) SS le-pe ea a 
Cheilostomata, Busk 
Cellularia, Pallas (pars) 
Peachii, Busk * 
Menipea, Zamz. | 
ternata, Hil. and Sol. . * | 
Scrupocellaria, Van Ben.. 
scabra, Van Ben. * 
scruposa, Z. 3 ae * 
var. elongata, Sm7tt * 
reptans, Z. . : * | x Canda 
| Caberia, Zamw. 
Boryi, Awd. * 
Ellisii, Flem. 4 * 
grandis, Hincks . * 
rudis, Bush * 
Bugula, Oken 
turbinata, Ald. | * | B. avicularia, 
| Pail. 
Cellaria = Salicornaria, 
Busk 
farciminoides, Johnst. 
fistulosa, Z. . 3 ay Sy 3 WO 
sinuosa, Hass. . os * | * * 
Cuvieri, Zam. . ; | Tide Shone, 
| 1878, ‘ Proc. 
(2) Chester 
Soc. N. Sc.’ 
Melicerita, Milne-Ed. | | 
Charlesworthii, Edw. .| * | * | x 
Membranipora 
aperta, Busk 5 .| *« | x 
(bidens, Hag. . .| *) See Micropora 
catenularia, Jameson .| « Ve, ah] * Hippothoa c. 
craticulata, Ald. . : | * 
dubia, Busk ; ; | # 
Dumerilli, Aud. . .| * * Ly 
fissurata, Busk . Alle: 
Flemingii, Bush . ; * 
Lacroixii, Aud. . . | * * 
