192 



HYDROIDA II 



We have thus reached a total of 91 species certainly known. The nature of the additions is 

 not uninfluenced by the fact that the investigations were largely carried out on the deeper slopes of 

 the coastal banks, so that southern and eurytherm species form the majority of the species thus added 

 to the fauna list of the island. 



We now come to the fauna of the Faroe Islands area. The species from here which are included 

 in the material cover the entire range of our present knowledge as to the hydroid fauna of this sec- 

 tion. We have here the following 57 species: 



Cor t ne pus ilia 

 Tubularia indivisa 



— larynx 

 Clava initlticoriiis 

 Mi- n 1 111/ cornucopiae 

 Bougainvilliq con ft •rta 

 Perigonimus re pens 

 Einlendriiiiii rameum 



— Wrighti 



— capillar e 

 Lafcca duinosa 



— fruticosa 



— gracillima 

 Grammaria serpens 



abictina 

 Calycella syringa 

 Hale c iu in ha lee in it 111 



— senium 



— iniiricatiiiu 



Halecium labrosuiu 

 teuelluiu 

 Kirclieupaueria pinna la 

 Plu miliaria Cat liar inn 

 Polypliiiuaria frutescens 

 Neiuertesia anfeui/ina 



ramosa 

 Xeiualocarpus raiiiulifcrus 

 Cladocarpus formosus 

 Tliecacarpus 111 xriopliylluni 

 Sertu la rella la marisca 



tricuspidala 

 polyzonias 

 Gayi 

 fen el la 

 — rugosa 



Diphasia fa/lax 



rosacea 

 Dyiianiena pitinila 



A bietiuaria abictina 

 Jilicula 

 — (?) f'usca 



Sei/ularia cupressina 



tcnera 

 Hydrallmania fa lea la 

 Tliujaria thuja 

 laxa 

 Ca in pa n u la ria volu bills 



verticillata 

 Integra 

 Hincksi 

 fohnstoni 

 Laoiuedea ftcxuosa 



geniculata 

 longissima 

 hyalina 

 — p racilis 



Bo n n eviella gra 11 dis 



Along the deepest portions of the slope of the banks, the following five were found: Tubularia 

 regalis, Corymorpha glacialis, Coryiuorpha grocnlaudica, Lictorella piuiiata, and Sertu la rella uiirabilis; 

 save for the last but one, all of these belong to the cold area; finds lie so far out in the periphery 

 that it is doubtful whether they should really be counted as belonging to the fauna of the Faroe 

 Bank. If we do so, then we have up to now 62 species recorded from the Faroe Islands sec- 

 tion, but the number will doubtless be increased by further study. We must at any rate expect to 

 find the following six species at the Faroe Islands, since they are found, and partly also frequent, in 

 Iceland waters and round the British Isles: Coryne Sarsii. Corymorpha nutans, Hydractinia ecl/inata, 

 Cusputella huiuilis, Pluiuularia scfacea, and Diphasia attenuata. This, however probably by no means 

 exhausts the list of species, and in particular we may expect to find more southern forms as more 

 or less sporadic visitors to the Faroe Islands. 



A comparison between the fauna of the three areas shows that the Greenland area includes 

 11 species not known from Iceland or the Faroe Islands. These are: 



