POLYCH^TA OF PLY.MOUTH. 641 



CHLORH^MID^. 



Stylaeioides (Trophonia) plumosa (0. F. Miiller) : Mcintosh, Mon. 

 Brit. Ann. III. 1, 1915, p. 231. 



Plymouth, In dredgings from Millbay Channel and Asia Shoal, 

 occasional specimens. Also dredged off Stoke Point. 



Flabelligera (Siphonostoma) affinis Sars : Mcintosh, Mon. Brit. 

 Ami. III. 1, 1915, p. 107. 



Plymouth. Between tide-marks at Drake's Island (r.a.t., 

 T.V.H., e.j.a.) ; Reny Rocks (r.a.t., e.j.a.) ; under Rame Head 

 (t.v.h.) ; Wembury Bay (e.j.a., a.j.s.) ; in dredgings from Millbay 

 Channel, Queen's Ground (r.a.t., t.v.h.) ; Mewstone Grounds 

 (e.j.a., r.a.t.) ; on Echmus acutus (r.a.t.). 



Torquay. Under stones at Corbyn's head {Elwes, Journ. M.B.A., 



vol. 9, 1910, p. 6-i). 



SABELLID^. 



Sabella pavonina (Savigny) : de St. Joseph, Ann. Sci. Nat. Zool. 

 XVII. 1894, p. 267. 



Plymouth. Common on the shore in Yealm River and also 

 found in Yealm dredgings. Common on the shore in the Catte- 

 water, near the entrance to Hooe Lake. Looe-Eddystone, Rame- 

 Eddystone and Eddy stone Grounds, common amongst hydroids 

 and Cellaria. 



Dredged by Crawshay S.S.W. of the Eddystone at a number of 



positions in depths of 40 to 51 fms. (Journ. M.B.A., vol. 9, 1912, p. 346). 



Specimens from the deeper water are all small with the tube of 

 very fine mud, compact and light coloured. Those on the shore 

 attain a large size and the tube is much coarser. 



Breeding : August and September (c.s.). 



Salcombe. Very abundant on the shore at the Salstone, and on 

 the mud in Kingsbridge Estuary south of Garston Point. Absent 

 from the banks near the mouth of Salcombe Harbour (Journ. M.B.A., 

 vol. 6, 1900, p. 198). These estuarine specimens were of large size. 



Torquay. Large specimens from the inner harbour. {Elwes, Journ. 



M.B.A., vol. 9, 1910, p. 65). 



Branchiomma vesiculosum (Montagu) : de St. Joseph, Ann. Sci. Nat. 

 Zool. XVII. 1894, p. 300. 



Plymouth. Occasional specimens on the shore, Yealm sand- 

 bank and Rum Bay (r.a.t.) : Drake's Island, south shore of Yealm 

 near the mouth. Barn Pool, and shore south of Batten Castle. 



Salcombe. In Salcombe Estuary where the soil is composed of 

 gravel, abundant. It is found at a higher tidal level than Sabella 

 pavonina and Myxicola infundibulum. Most numerous on the 



