196 NUTTING 



Spitzbergen (Marktanner-Turneretscher) ; New England Coast (Ver- 

 rill) ; Puget Sound (Nutting). 



LAFOEA FRUTICOSA M. Sars. 



Lafaea fruticosa M. SARS, Bemaerkninger over 4 norske Hydroider Vid. Selsk. 

 Forh., 1862. G. O. SARS, Bidragtil Kundskaben om Norges Hydroider, 

 p. 26, 1873. CLARK, Proc. Acad. Nat. Sciences, Phila., p. 216, 1876. 



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

 Exped.) ; Kiska Harbor, Shumagin Islands, Alaska (Clark) ; British 

 Coasts (Hincks) ; Lofoten, Norway (G. O. Sars) ; New England 

 Coast (Verrill) ; Puget Sound (Nutting, MSS.). 



LAFCEA ADHyERENS sp. nov. 

 (Plate xxi, figs. 3, 4.) 



Trophosome. Colony forming an encrusting mass of adherent root- 

 stocks disposed both longitudinally and transversely over colonies of 

 other Hydroids, the tubes of the rootstock interwoven much like the 

 threads of a fabric. Hydrothecae sessile, tubular, often more or less 

 curved, aperture facing upward, entire; margin slightly expanded. 

 The hydrothecae are very irregularly disposed, being much more 

 crowded in some places than in others. 



Gonosome. The ' Coppinia ' mass is much like that of Lafcea du- 

 mosa, being composed of closely packed gonangia interspersed with 

 long, tubular, variously curved modified hydrothecae. The gonangia 

 are flask-shaped, with a tubular neck and small aperture. Each 

 gonangium apparently contains a single ovum. 



Distribution. Kadiak Harbor, Alaska. Growing over stems of 

 Thuiaria turgida (Harriman Exped.). 



This interesting species is so different in appearance from the others of 

 the genus that I was at first inclined to make it the type of a new genus. 



GRAMMARIA. 



Trophosome. Stem fascicled, composed of an axial tube from 

 which the hydrothecae spring and to which they are partly adnate, 

 completely enclosed by a definite number of peripheral nonhydro- 

 thecate tubes. 



Gonosome. A * Coppinia ' mass. 



GRAMMARIA IMMERSA sp. nov. 



(Plate xxi, figs. 5, 6.) 



Trophosome. Stem rigid, erect, giving forth scattered, stiff and 

 straight, alternate branches forming nearly a right angle with the stem. 



