TLYMOUTII iMAlilNE INVERTEBltATE FAUNA. 213 



[ Turbellaria— co?iW. ] 



Hyporhynchus penicillatus (Schmidt). 



One specimen among Zostera in Cawsand B. (f.w.g.). 



Vorticidae, 

 Provortex balticus (Schultze). 



Between tide-marks, chiefly at Wembury B. (f.w.g.). 



Provortex affinis (Jensen). 



Drake's I. among algae (f.w.g.). 



Provortex rubrobacillus, Gamble. 

 Dredged off New Gds. (f.w.g.). 



Fecampia erythrocephala: a. Giard, C. E. Acad. Paris, vol. ciii, p. 499. 

 Encysted stage common on all stony shores at low water (w.i.b.^s.p.). 



Plagiostomidae. 



Plagiostoma dioicum (Metschnikoff). 



Duke Pik. and Wembury B. (f.w.g.). 



Plagiostoma elongatum, Gamble. 



Wembury B., among sand; Breakwater (f.w.g.). 



Plagiostoma pseudomagulatum, Gamble. 



Among weed-tubes of Polydora cccca in Hamoaze (f.w.g.). 



Plagiostoma sagitta, Uljanin. 



Tide-pool Piedding Pt. (f.w.g.). 



Plagiostoma caudatum, Levinsen. 



One specimen among Zostera in Cawsand B. (f.w.g.). 



Plagiostoma vittatum (Frey u, Leuckart) 



Abundant littoral species in all localities. Egg capsules from 

 Breakwater in September (f.w.g.). 



The tanks in the Laboratory swarm with them (e.g.g.). 



Plagiostoma Koreni, Jensen. 



Breakwater and Piedding Pt. Tank in Laboratory (f.w.g.). 



? Plagiostoma siphonophorum (Schmidt). 



A specimen from Millbay Ch. (f.w.g.). 



Plagiostoma Girardi (Schmidt). 



Low spring-tides, Wembury B.; tide-pools north side of Cawsand B. 

 Not uncommon Duke Ptk. and Millbay Ch. (f.w.g.). 



Vorticeros auriculatum (0. F. Miiller). 



An abundant littoral species in all localities (f.w.g.). 



Vorticeros luteum, v. Graff. 



One specimen New Gds.; one on inner side of Breakwater (f.w.g.). 



Enterostoma austriacum, v. Graff. 



Common in Sound below 5 fms. (f.w.g.). 



Enterostoma fingalianum, Claparede. 



Among FloridcK, Wembury V>. (f.w.g.). 



Cylindrostoma quadrioculatum, (K. Leuckart). 



Abundant among Floridce, Wembury B. (f.w.g.). 



Tanks in Laboratory (e.g.G.). 

 Cylindrostoma inerme (Hallez). 



Duke Kk., Millbay Ch., Hamoaze (f.w.g.). 



