PLYMOUTH MARINE INVERTEBRATE FAUNA. 295 



[Cephalapoda— co«W.: Tunicata ] 



Polypodidse. 

 Polypus vulgaris (Lamarck): J. G. Jeffreys, Brit. Conch., vol. v, p. 144, 

 fig. (as Octopus). 



On the shore and from lobster pots ; generally only a few speci- 

 mens are obtained during the summer months, but it varies greatly 

 in abundance in different years (e.j.a.) : exceptionally plentiful* in 

 1900 (W.G.). 

 MoscniTES cirrosa (Lamarck): J. G. Jeffreys, Brit. Conch., vol. v, p. 146 

 (as El e done), fig. 



Frequently met with on the trawling grounds (e.j.a.): conmionly 

 canght in lobster pots (a.j.s.). 



TUNICATA. 



Molgulidae. 

 Molgula oculata, Forbes : H. de Lacaze-DiUhiers, Arch. Zool. expt., 

 ser. 1, vol. vi, p. 516, fig. (as Anurella). 



Mewstone Ledge (t.v.h.): not uncommon in clean fine gravel off 

 the Mewstone (r.a.t.): Eddystone Gds. (e.j.a.). 

 Molgula simplex. Alder & Hancock: H. de iMcaze-Duthiers, Arch. 

 Zool. expt., ser. 1, vol. vi, p. 542, fig. (as Anurella). 



Eddystone Gds., on Chcvtopterus tubes, not uncommon (E.J.A.). 



Cynthiidse. 

 Forbesella tessellata (Forbes) : E. Forbes & Hanley, Hist. Brit. Moll., 

 vol. i, p. 39, fig. (as Ci/n.thia limacina) ; Jf'. A. Herdman, Journ. 

 Linn. Soc, Zool., vol. xxiii, p. 578. 



liame-Eddystone Gds. (r.a.t.) : Eddystone Gds., single spec, on 

 fine gravel (e.j.a.). 

 Styelopsis grossularia, v. Beneden : R. Hartmeyer, Meeresf. Bergen 

 [Bergens Mus. Publ], pt. i, p. 46. 



Abundant on rocks between tide-marks, Jennyclilf B., Bum B., 

 Mt. Edgcumbe; occasionally in dredgings from Millbay Ch., Queen's 

 Gd., etc. (r.a.t.) : Eddystone Gds., the small squat var. not un- 

 common on shells, particularly Pecten shells, on the gravels W. of 

 the Eddystone (E.j.a.). 



Breeding : May ; Oct. (W.G.). 

 Polycarpa pomaria (Savigny) : E. Hartmeyer, Fauna Arctica, vol. iii, 

 p. 229. 



Common at times in the Cattewater, but probably from trawl 

 refuse; very plentiful on one occasion 4 m. W.N.W. of the Eddystone 

 (r.a.t.): Eddystone Gds. (e.j.a.): Mewstone Ledge (a.j.s.). 



Ascidiidae. 

 Corella larv^.formis, Hancock : IV. A. Herdman, Journ. Linn. Soc, 

 Zool., vol. xxiii, p. 588. 

 Off the Eddystone (W.G.). 



* Jonrn. Mar. Biol. Assoc, ser. '2., vol. ii. pp. 'J(J0-73. 



