CONTE 



Page 

 I. Comparative anatomy of the nourishing individuals, and 



systematic division of the theeaphore hvdroids i 



II. Theeaphore Hvdroids of the Northern Atlantic 6 



Family series Hebellina 6 



Family Lafteidoe 6 



Lafaa (Lamouroux) 7 



Lafica dumosa (Fleming) 7 



gracillima (Alder) 9 



fruticosa M. S a rs 12 



Toickopoma Levinsen 15 



Toichopoma obliquum (Hi neks I 15 



Grammaria (Stimpson) 16 



Grammaria serpens ( Hassall ) 16 



confer ta ( A 1 1 m a n ) .• 17 



— dbietina (M. Sars) iS 



immersa Nutting 22 



Lictorella ( Allman) 22 



Lietorella pinnata ( G. O. Sa rs ) 22 



Zygophylax Q u el ch 24 



Zygophylax biarmata Billard 24 



Familv Campanulinidts 25 



Subfamily Cuspidellina 26 



Stegopoma Levinsen 26 



Stegopoma plicatile ( M. Sars) 26 



Cuspidella Hincks 29 



Cuspidella humilis Hincks 29 



Lafoeina M. Sars 29 



Lafoeina maxima Levinsen 30 



Campanulina van B e n e d e n 30 



Campanuhna turrita Hincks 31 



Subfamily Calycellma 32 



Calycella (Hincks) 32 



Calycella syringa ( L i n n e ) 32 



Tetrapoma Levinsen 34 



Tetrapama quadridentatum (Hincks) 34 



Family series Haleciina 35 



Family Haleciida: 35 



Halecium O k e n 35 



Halecium halecinum ( Linne) 36 



Beam/ Johnston 38 



scutum Clark 39 



curuicaule v. Lorenz 41 



NTS 



Page 



Halecium muricatum Ellis and Solander). . . . 43 



labrosum Alder 45 



/, nellum Hincks 46 



munition Broch 50 



Familv Plumulariidcs 51 



Kirchenpaueria ( Jick eli ) 52 



Kirchenpaueria pinnata (Linne) 53 



Plumularia Lamarck) 55 



Plumularia setacea (Linne 55 



Catharina Johnston 56 



Polyplumaria G. O. S a rs 58 



Polyplumaria frutescens I Ellis and Solander) . 59 



flabellata G. O. Sars 59 



profunda (Nutting) 60 



Nemertesia Lamouroux 62 



Nemertesia antennina (Linne) 64 



ramosa Lam ouroux 66 



Polynemertesia now gen. 69 



Polynemertesia gracillima (G. O. Sars) 70 



Family Aglaopheniidce 72 



Halicornaria (Busk) 72 



Halicornaria campanulata (Ritchie) 72 



Nematocarpus nov. gen 74 



Xcmatocarpiis ramuliferus (Allman ) 74 



Aglaophenopsis ( Fe wkes ) 77 



Aglaophenopsis cornuta ( Verrill) 77 



(?) pharetra nov. sp So 



Cladocarpus Allman 82 



Cladocarpus integer G. O. Sars ) S2 



formosus Allman S5 



Diana nov. sp 87 



bicuspis G. O. Sars) S9 



Thecocarpus Nutting 91 



Thecocarpus myriophyllum (Linne ) 92 



Aglaophenia (Lamouroux) 93 



Aglaophenia tuhiilifcra H i n cks ; 93 



Family series Sertulariina 94 



Familv Sertulariidce 94 



Sertularella l-rav 96 



Sertularetta tamarisca (Linne) 96 



! 1 icuspidata (Alder) 9S 



amphorifera Allman 100 



419n r > 



