POLYCH.ETA OF PLYMOUTH. 62:^ 



eyes, therefore, the specimen does not differ from the S. ciliatus with 

 two eyes described by Mcintosh ; it does differ, however, from the 

 S. ciliatus described by Keferstein and Ehlers, which has four eyes. 

 It agrees with S. 'pallidus Langerhans, which has two eyes. The 

 correct synonymy of the two species, if indeed they are really 

 distinct, can only be settled by further research. 



Opheyotrocha puerilis Claparede and Mecznikow : Mcintosh, Mon. 

 Brit. Aim. II. 2, 1910, p. 364. 



Plymouth. Frequently met with in dredgings from the Sound, 

 especially from Asia Shoal. Sometimes very numerous in dredgings 

 from the Cattewater. Often common in the Laboratory tanks. 



Breeding : August (w.G.). Spawned in tanks, May (a.j.s.). 



Torquay. Frequent on the sides of glass vessels containing 

 roots and pieces of rock. A small aquarium was found to be swarming 

 with this species (Elwes, Joum. M.B.A., vol. 9, 1910, p. 61). 



LuMBRicoNEREis FRAGiLis 0. F. Mliller : Mcintosh, Mon. Brit. Ann. II. 

 2, 1900, p. 372. 



Plymouth. Two specimens (both incomplete) from a depth of 

 47-49 fms. S.S.W. of the Eddystone are provisionally referred to 

 this species by Crawshay (Joum. M.B.A., vol. 9, 1912, p. 342). 



Southern (Proceed. E. Irish Acad. XXXI. 47, 1914, p. 85) thinks that 



L. fragilis 0. F. Mliller and L. imyatiens Claparede may prove to 

 be identical. 



LuMBRicoNEREis Latreilli Audouiu and Edwards : Mcintosh, Mon. 

 Brit. Ann. II. 2, 1910, p. 376. 



Plymouth. Shores of the Sound between tide-marks (Drake's 

 Island, Mount Edgcumbe, Rum Bay) ; amongst dredgings from 

 Millbay Channel, Asia Shoal, Queen's Ground, Yealm River and 

 Eddystone Grounds. 



Salcombe. a number of specimens on the west side of the 

 harbour under the Marine Hotel. A few were found in other parts 

 of the estuary (Journ. M.B.A., vol. 6, 1900, p. 191). 



Torquay. Three or four in rather coarse gravel on Babbacombe 

 Beach (Journ. M.B.A., vol. 9, 1910, p. 61). 



LUMBRICONEREIS IMPATIENS Claparede : Mcintosh, Mon. Brit. Ann. 11. 

 2, 1910, p. 379. 



Plymouth. Occurs in dredge and trawl material fi-om the 

 Rame-Eddystone, Looe-Eddystone and Mewstone Grounds, es- 

 pecially from gravel ; very abundant on Queen's Ground in the 

 spring of 1903. 



Arabella (Maclovia) iricolor (Montagu) : Mcintosh, Mon. Biit. 

 Ann. II. 2, 1910, p. 395. 



Plymouth. Occasional specimens at low-water mark on the 

 shores of the Soimd and Wembury Bay. 



