HYDROIDA II 



191 



La for a pygmcra 



— graciUi>ini 



— fiocilhmi 



— syjiiiiiefrica 



— friiticosa 

 Filelhtni scrpms 

 LicforcUa Lrviiisriii 

 Scrtiilaria cuprrssimi 



— argoitra 



— piDJiila 

 Diphdsia fitsca 



— abicfiiia 



A )itcuiiiilari(i aiitriiiiiua 



— rainosa 

 Pluiiiularia pinuata 



— graciUi)iia 



— fritffsccns 

 Thccocarpiis radiceilatits 

 Cladocarpiis Hobiii 



( = Lafcea gracillima 



= Lafa-a fntticnxa forma gfmtina and forma grandis 



= Graiiniiaria serpens 

 = Zygophylax biarmata 



= Serlularia cupressiiia 



= Dyiiaiiieiia piDiiila 



= A bietinaria (?) piisca 



= Abietinnria filicula 



= Nei/ierfes/a niifeiniii/a 



= — yeniiosa 



= Kircheiipaiiriia piin/ala 



= Polynetnerfrsia gniciUinia 



^= Polyplitiiiaria fnitesceiis 



= T/iecocarp/is »iyrioph\lluiii 



= Cladocaipiis integer 



The synonyms noted reduce the nnmber of species b\- g; furthermore, Scemundsson (1902, 

 191 1) notes Turn's iieghcfa Lesson, which here probably represents a \'onng colonv of Clava midti- 

 cornis^ and Diplura fritillaria (Haeckel) = Coryne frifillaria Steenstrup, an ahogether uncertain species 

 (cf. Part I, p. 23). Renewed investigations must also decide what species is concealed under the name 

 PerigoiiiiiiHs ripens. Altogether, we have then to reduce the 90 species noted bv vSsemundsson to 

 a certain 77. But the geographical details for these species are highly uncertain, as the determina- 

 tion has on revision often pro\'ed erroneous. In the revised collections, for instance, we find under 

 the old label '■'■Thitjaria lonchitis''' specimens of Tliiijaria lonehifis, T/iii/uria laxa, TInijaria alternit/iecei, and 

 Tlntjaria earica, while under '■^Laoniedea flexnosd'^ we find labelled, besides S2:)ecimens actually belonging 

 to that species, also others of Laomedea gcniciilnta and l.aomedea longissinia. (Jn the other hand, spe- 

 cimens of Laomedea longissiina are distributed under the names of Laomedea flexiiosa, Laomedea long- 

 iss/ma, and Laomedea gelatinosn — taking examples at haphazard. The details are apparent from the 

 notes under the separate headings. Even though the detailed records thus leave much to be desired, 

 we have nevertheless a prettv fair surve^• of the species comprised under the area as a whole. The 

 investigations have now added the following 14 new species to the list: 



Corvmorpha groeulandica 

 Hydraciiiiia Sa rsii 

 Stegopoma plieatile 

 Haleciniii seiifiim 

 Polyplmnan'a pa be! la fa 



Polyplumaria pro/ /in da 

 Halicornariei eampaniilata 

 Nematocnrpus rauiuliferiis 

 Aglaophenopsis cornuta 

 Cladocarpiis forrnosns 



Cladocarpiis bicnspis 

 Serlularella amphori/era 

 Diphasia attenuata 

 TImjaria altertntheca 



