[lyy] THE HVDROIDS 195 



CalyccUa svringa Clark, Proc. Acad. Nat. Sciences, Philadelphia, p. 210, 

 i876.^-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 (Harrinian Exped.) ; 



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



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



Sound (Nutting). 



Family LAFCEID^-E. 



Trophosome. — Hydrothecje 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 hydrothecaj 

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

 ing abruptly turned upward. 



Gonosome. — A ' Coppinia ' mass. 



LAFCEA DUMOSA (Fleming). 



Si-rtiilaria dumosa Fleming, Edinburgh Phil. Jour., 11, p. 83, 1828. 



Lafwa dutnosa 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 (Harrinian 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). 



Campamilaria gracillima Alder, Catalogue Zoophytes of Northumberland 

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



Lafa'a gracillitna 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. viii, p. 410, 1895. — Nitti.sg, 

 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) ; 



