46G 
COfiLENTERATA. 
10. PoDOCORYNiDiE. IlydrophytoR a continuous adherent expansion 
formed by adiiate and inosculating ciuials, the deeper part with its component 
canals invested by a chitinous perisarc, while a layer of naked coenosarc 
spreads over the free surface} hydranths with verticillate filiform tentacles } 
gonopliores phanerocodonic. 
Podocoryne carnea, Sara, Norway, Frith of Forth, Naples, prohoscideUf 
Hincks, Ilfracombe, aculeata^ Wagn., Adriatic, areolata^ Aid., Durham, 
Shetland, 
Corynopsis alderi, Hodge, Northumberland. 
11. Cladonemid^. Hydrocaulus developed, invested by a perisarc } hy- 
dranths with two kinds of tentacles, one filiform, the other capitate } gono- 
phores phanerocodonic, with the radiating canals more than 4, and the mar- 
ginal tentacles ramified. 
Cladoncma radiatum, Duj., British shores, Belgium, France, Messina. 
12. Nemopsiid^. Hydranths with a proximal and distal circlet of filiform 
tentacles, gonopliores medusiform planoblasts with 4 radiating canals, and the 
marginal tentacles clustered and dissimilar. 
Nemopsis gihbesi, M‘Or., Charleston. 
13. PENNARiiDiE. Hydrocaulus developed or not} hydranths with two 
kinds of simple tentacles, one filiform, the other capitate } gonophores medu- 
siforiu planoblasts witli 4 radiating canals, and one or four more or loss deve- 
loped simple marginal tentacles. 
Pcnnaria cavulinii, Fhrb., Mediterranean, yibbosa, Ag., Florida. 
Halocordyle (g. n., = Globiceps, Ayr., = Eucoryne, Leidy, both pre- 
occupied) tiarella, Ayr., North America. 
Stauridium produetum, Wr., British shores. 
Vorticlava humilis, Aid., British shores, proteuSy Aid., Frith of Forth. 
Heterostephanus (g. Vi.y=Heteractis, preocc.) annulicornisy Sars, Norway. 
Acharadria larynx y Wr., Ilfracombe. 
Acaulis primariuSy Stms., Fundy Bay. 
14. Cladocorynid.®]. Hydranths with both simple and ramified capitate 
tentacles, gonosome unknown. 
Cladocorym Jtoccostty Botch, Guernsey. 
16. MYRiOTHEi.iD.aB. Hydranth solitary, attached} tentacles scattered, 
capitate } hydrocaulus not developed } gonophores fixed sporosacs borne on 
special processes, springing from the body of the hydranth. 
Myriothela phrygiay Fab., Greenland, North America, Norway, British 
shores. 
10. OLAVATELLiDiE. Hydranths with simple verticillate capitate ten- 
tacles} gonophores ambulatory medusoe, with undeveloped umbrella and 
branching marginal tentacles. 
Clavatella proliferay Hincks, British shores, Mediterranean. 
17. CoRYMORPHiD.®. Hydi’ocaulus solitary, destitute of perisarc } hy- 
dranths with a proximal and distal set of filiform tentacles} gonophores 
medusiform planoblasts with 4 radiating canals, and one or more simple mar- 
ginal tentacles. 
Corymorpha nutanSy Sars, Norway, British shores. 
Halotractus (g. n.) nanus, Aid., Northumberland. 
Amalthcea uvifera, Schm., Finland, sarsi, Stp., Vestfj ordeu,y awwanV, Stp., 
Rio Janeiro. 
