612 E. J. ALLEN, 



Torquay. Rare. Recorded by Gosse from Anstey's Cove {Elwes, 



Journ. M.B.A., vol. 9, 1910, p. 59). 



ScALiSETOSUS COMMUNIS (Delle Chiaje) : Mcintosh, Mon. Brit. Ann. I. 

 2, 1900, p. 372. 



Plymouth. On the shore at Mount Edgcumbe : amongst 

 dredgings Millbay Channel and Asia Shoal (r.a.t., e.j.a.). 



Fauvel considers that the name S. pellucidus (Ehlers) should be 

 maintained for this species, as there is great doubt as to Delle 

 Chiaje's species (Camp. Sci. Monaco, XLVI. 1914, p. 47). 



ScALiSETOSUS ASSiMiLis (McIntosh) : Mcintosh, Mon. Brit. Ann. I. 2, 

 1900, p. 377. 



Plymouth. Among spines of Echinus esculentus from Mewstone 

 and Eddystone Grounds (t.v.h., r.a.t., e.j.a.). 



MALMGRENL4 CASTANEA, McIntosh : Mon. Brit. Ann. I. 2, 1900, p. 379. 



Plymouth. Commensal on the surface of Spatangus jmrpureus, 



near the mouth of the Echinoderm : not uncommon (t.v.h., e.j.a.). 



Halosydna gelatinosa (M. Sars) : Mcintosh, Mon. Brit. Ann. I. 2, 

 1900, p. 384. 



Plymouth. Frequently met with on the shore under stones 

 and amongst dredging and trawling material throughout the area, 

 including the Eddystone Grounds. 



One specimen taken by Crawshay S.S.W. of the Eddystone in 

 49 fms. (.Journ. M.B.A., vol. 9, 1912, p. 341). 



Torquay. One specimen under a stone at Babbacombe Beach 



(Ehves, Journ. M.B.A., vol. 9, 1910, p. 60). 



PoLYNOE scolopendrina Savigny Auct. : Mcintosh, Mon. Brit. Ann. 

 T. 2, 1900, p. 389. Marenzeller, Zur Kenntniss der adriatischen 

 Anneliden. Sitzb. math-nat. CI. Wien. 69, 1874, p. 420 as P. 

 Johnstoni. 



Plymouth. Commensal in tubes of Polyrmiia nebulosa on the 

 shore at Mount Edgcumbe. In dredgings from Asia Shoal. 



Eddystone Grounds {Hodgson, Journ. M.B.A., vol. 6, 1900, p. 249). 



The specimens commensal with Polymnia nebulosa are large 

 (6 to 7 centimetres long) and the colour tends, especially in spirit, 

 to dark olive green. Those from dredgings in the Sound are smaller 

 (2-3 cm.) and the colour is light brown. The elytra of the two 

 sides nearly or even quite meet in the middle line in both cases. 

 The dorsal bristle bundles are well developed. Three rows of dorsal 

 tubercles on the posterior segments are very marked. 



PoLYNOE crassipalpa Marenzeller : Zur Kenntniss der adriatischen 

 Anneliden. Sitzb. math-nat. CI. Wien. 69, 1874, p. 412. 



Plymouth. Occasional specimens are met with in dredgings 

 from Plymouth Sound. 



When the two are seen side by side there can be no doubt that 



