PLYMOUTH MAKINE INVEllTEBKATE FAUNA. 197 



[ Leptomedusae— co7(<(^. ] 



Sertulakia argentea, Ellis & Solander : T. Rincks, Hist. Brit. Hydr. 

 Zooph., p. 268, fig. 



Queen's Gd. ; Asia Sh. ; Millbay Ch. and Pit (r.a.t., s.p.) : Eddy- 

 stone Gds., not infrequent on Pcctcn opcrcularis shells, and on 

 other Hydroids (e.j.a.) : Yealni If. (r.a.t.) : Stoke Pt. Gds. (r.a.t., 

 s.p.) : Saltash Pier (e.T.b.). 



Breeding : Feb. (w.g.) : Mar., Apr. (r.a.t.). 



Sertularia gupressixa, LiniiiGus : T. Rinds, Hist. Brit. Hydr. Zooph., 

 p. 270, fig. 



Common in trawl refuse from the Eddystone (g.c.b.) : Queen's 

 Gd. (r.a.t., s.p.). 



Gonophores ripe : JMarch (r.a.t.), 



Sertularia operculata, Linnaeus : T. Rinds, Hist. Brit. Hydr. Zooph., 

 p. 263, fig. 



Wcmbury B. ; Eddystone Ptk., abundant Apr. 1898; Eddystone 

 Buoy (e.T.b.). 



Sertularia pumila, Linnaeus: T. Rinds, Hist. Brit. Hydr. Zooph., 

 p. 260, fig. 



Abundant on rocks and weeds, especially Fucus, between tide- 

 marks (g.c.b., r.a.t., s.p.) : buoy near Breakwater (r.a.t.). 



Breeding : Mar. -July (w.g.). 



Hydrall.maxia 1 alcata (Linnreus) : T. RindiS, Hist. Brit. Hvdr. Zouph., 

 p. 273, fig. 



Not uncommon in the Sound; conmion, 15-30 fms., on stony 

 ground, and on sand with stones and shells : always attached to 

 stones or shells (r.a.t.): abundant in the Hamoaze (e.j.a.) : Millbay 

 Pit; Uuke Pk.; Mewstone Gds.; Cawsand B.; Eame-Eddystone Gds. 

 (r.a.t.) : Eddystone Gds., occasional specs, (e.j.a.). 



Breeding : Jan. (w.a.) : Feb.-Apr. (r.a.t.). 



Thuiaria articulata (Pallas): T. Rinds. Hist. Brit. Hydr. Zooph., 

 p. 277, fig. 



Wembury ]].; stones and shells off Mewstone (g.c.b.): Mewstone 

 Ledge (r.a.t.). 



Plumulariidae. 



Antennularia axtenxina (Linnyeus): T. Rinds, Hist. Brit. Hydr. 

 Zooph., p. 280, fig. 



Not unconnnon in the Sound ; common outside, 15-30 fms., 

 especially on medium gravel and muddy sand (r.a.t., s.p.) : Eddy- 

 stone Gds. (e.j.a., s.p.) : Cawsand B : Pame-Eddy stone Gds.; Mew- 

 stone Gds. (r.a.t., s.p.): Stoke Pt. Gds.; Looe-Eddystonc Gds. (s.p.). 



Breeding: Apr. (r.a.t.): May (w.g., R.A.T., s.p.): June-July (w.g.). 



Antennularia ramosa (Lamourou.x) : T. Rinvks, Hist. Brit. Hydr. 

 Zooph., p. 282, fig. 



With A. antennina, but less abundant (e.j.a., r.a.t., s.p.). 

 Breeding: Apr. (r.a.t.): May (w.g., r.a.t., s.p.). 



Aglaophexia Helleri, Marktanncr - Turneretscher : C. C. Nutting, 

 Journ. Mar. ]>iol. Assoc, ser. 2, vol. iv, p. 153. 

 Eddystone lik. (c.C.N., E.T.B.), 



