[177] THE HYDROIDS 1 95 



Calycella. syringa CLARK, Proc. Acad. Nat. Sciences, Philadelphia, p. 210, 

 1876. VERRILL, Preliminary Check-list Marine Invertebrata Atlantic 

 Coast, p. 17, 1879. BERGH, Goplepolyper (Hydroider) fra Kara-Havet, 

 p. 335, 1887. NUTTING, Hydroida from Alaska and Puget Sound, Proc. 

 U. S. Nat. Mus., Vol. xxi, p. 741, 1899. 



Distribution. Berg Inlet and Kadiak, Alaska (Harriman Exped.) ; 

 Coal Harbor, Shumagin Islands, Alaska (Clark) ; Kara Sea (Bergh) ; 

 British Coasts (Hincks) ; New England Coast (Verrill) ; Puget 

 Sound (Nutting). 



Family 



Trophosome. Hydrothecae tubular, margins without teeth or oper- 

 cula, the hydrothecal cavity not divided from the stem cavity by a par- 

 tial septum. 



Gonosome. Gonangia forming a ' Coppinia ' mass. 



LAFCEA. 



Trophosome. Colony with a fascicled stem, and with hydrothecae 

 either free or partially immersed in the stem, the distal portion not be- 

 ing abruptly turned upward. 



Gonosome. A ' Coppinia ' mass. 



LAFCEA DUMOSA (Fleming). 



Sertularia dumosa FLEMING, Edinburgh Phil. Jour., n, p. 83, 1828. 



Lafcea dumosa SARS, Bidrag til Kundskaben om Norges Hydroider, p. 45, 

 1873. CLARK, Proc. Acad. Nat. Sciences, Philadelphia, p. 210, 1876. 

 VERRILL, Preliminary Check-list Marine Invertebrates of Atlantic Coast, 

 p. 17, 1879. NUTTING, Hydroida from Alaska and Puget Sound, Proc. 

 U. S. Nat. Mus., Vol. xxi, p. 741, 1899. 



Distribution. Dutch Harbor, Unalaska (Harriman Exped.) ; Port 

 Etches, Alaska (Clark) ; North Cape, Norway (Sars) ; British Coast 

 (Hincks) ; New England Coast (Verrill) ; Puget Sound (Nutting) ; 

 California Coast (Clark). 



LAFCEA GRACILLIMA (Alder). 



Campanularia gracillima ALDER, Catalogue Zoophytes of Northumberland 

 and Durham, Trans. Tyneside Naturalists' Field Club, p. 39, 1857. 



Lafcea gracillima CLARK, Proc. Acad. Nat. Sciences, Philadelphia, p. 216, 

 1876. VEKRILL, Preliminary Check-list Marine Invertebrates of Atlantic 

 Coast, p. 17, 1879. MARKTANNER-TURNERETSCHER, Hydroiden von 

 Ost-Spitzbergen, Zoolog. Jahrbuch., Vol. vin, p. 410, 1895. NUTTING, 

 Hydroida from Alaska and Puget Sound, Proc. U. S. Nat. Mus., Vol. xxi, 

 p. 741, 1899. 



Distribution. Juneau, Berg Inlet and Orca, Alaska (Harriman 

 Exped.) ; Shumagin Islands, Alaska (Clark) ; British Coast (Alder) ; 



