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Od Or Co bo 
On SO) Or Hm Co bo 
£9 00 NIG) OTB Co NO 
On Marine Polyzoa. 
Puate II, 
. Schizoporella acuminata, 0. sp. 
. Monoporella lepida, n. sp. 
. Membranipora (?) roborata, nu. sp. (provisionally named). 
. Schizoporella triangula, n. sp. 4a. The ocecium. 
. Mucronella teres, 0. sp. 
. Membranipora radicifera, nu. sp. 6a. Dorsal surface of the zoce- 
cium. 60, Cluster of the radical tubes. 
Prats III, 
. Mucronella tricuspis, 0. sp. 
. Mucronella spinosissima, i. sp. 
. Membranipora punctigera, un. sp. 
. Caberea grandis, nu. sp. 4a. Seta of the vibraculum, showing its 
remarkable length. 46. One of the large avicularia. 
. Porina gracilis, Lamx, 5a. The same, natural size. 
. Cribrilina monoceros (?), MacGillivray. 6a. One of the large 
marginal avicularia. 
. Membranipora amplectens, n. sp. 
. Cellepora granum,n. sp. 8a. The same, natural size. 
Puate LV. 
. Lunulites incisa, n. sp. Zocecia, magnified. 
. Lunulites incisa, n. sp. Portion of the underside of the zoarium, 
showing the lobate margin and the cancellated structure of the 
centre. 
. Lunulites incisa, n. sp., nat. size. 
. Membranipora marmata, 0. sp. 
. Membranipora mornata, n. sp. 
. Membranipora hexagona, Busk (for comparison with the pre- 
ceding). 
. Rhynchopora longirostris, n. sp. A group of young zocecia. 
. Rhynchopora longirostris, n. sp. Zocecia and elongate avicularia 
from the centre of the colony, less highly magnified. 
. Lubulpora capitata, n. sp. 
PLatE V. 
. Membranpora circumclathrata, u. sp. 
. Membranipora variegata, n. sp. 
. Membranipora velata, n. sp. 
. Diachoris distans, n. sp. 
Diachoris distans, n. sp. Dorsal surface. 
Diachoris distans, n. sp. Avicularium. 
. Avicularium of Diachoris spinigera, MacGillivray. 
. Diachoris intermedia, n. sp. 
. Drachoris hirtissima, Heller, form robusta. 9a. Avicularium. 
10. Schizoporella insignis, n. sp. 
