vol.i.] Torrey. — Hydroida of tin Pacific Coast. 59 



Colonies growing on seaweed. Trophosome resembles that of 

 ('. inrta. The hydrotheeae vary greatly. The margin is usually 

 wavy, a character which is not mentioned in the original descrip- 

 tion. Gonosome present May 23 and July 13, 1901. 



Calycella (Hincks). 



Trophosome. Hydrotheea tubular, oil short annulated pedicel from a 

 creeping stolon; operculum of several triangular tooth-like pieces. 

 Gonosome. Gonothecae on stolon; with acrocysts at maturity. 



Calycella syringa (Linn.). 



PI. VI. Fig. 50. 



Sertularia syringa, Linnaeus, Syst. Nat., XII ed., 1767, I, p. loll. 



Calycella syringa, Hincks, Ann. Nat. Hist., (3), 1861-2, VIII, p. 293. 

 Calkins, Proe. Bost. Soc. N. H., 1899, XXVIII, p. 358. Nutting, 

 Proc. U. S. Nat. Mus., 1S99, XXI, p. 741; Proc. Wash. Ac. So., 

 1901, III, p. 176. Clark, Proc. Ac. Nat. Sc. Phil., 1876, XXVIII, 

 p. 217. 



Distribution. Mouth of San Diego Bay, Cal., 1-5 fathoms. 

 Puget Sound; Berg Inlet aud Kadiak, Al. (Nutting). Coal 

 Harbor and Shumagin Is., Al. (Clark). Beach, Kara Sea 

 (Bergh). British coasts (Hincks). Iceland, 100 fathoms 

 (Hincks). Greenland (Levinsen). 



Fam. Lafoeidae. 



Trophosome. " Hydrotheeae tubular, margins without teeth or opercula, 

 the hydrothecal cavity not divided from the stem cavity by a partial septum. 

 Gonosome. "Gonangia forming a 'Coppinia' mass." (Nutting, '01). 



Lafoea. 



Trophosome. "Colony with a fascicled stem, and with hydrotheeae either 

 free or partially immersed in the stem, the distal portion not being abruptly 

 turned upward. 



Gonosome. "A 'Coppinia' mass." (Nutting, '01.) 



Lafoea dumosa (Fleming). 



Sertularia dumosa, Fleming, Edin. Phil. Jour., 1828, II, p. 83. 



Lafoea dumosa, Sars, Bidrag til Kundskaben om Norges Hydroider, 



1873, p. 45. Clark, Proc. Ac. N. Sc. Phil., 1876, XXVIII, p. 216. 



Nutting, Proc. U. S. Nat. Mus., 1899, XXI, p. 741; Proc. Wash. 



Ac. Sc., 1901, III, p. 177. 



Distribution. Port Orchard, Puget Sound. California coast 

 (Clark). Port Etches, AL, 12-18 fathoms, clayey mud (Clark). 



