154 CATALOGUE OF ADDITIONS TO, AND ALTERATIONS 



operculum, with which this species is furnished, " to the roof of 

 a house, the two opposite angles forming the gables." 



* From Shetland and the Hebrides. (A.M.N.) On Flumu- 

 laria tuhuUfera from Cornwall. (T.H.) 



Genus, Filellum. — Hincks. 



* 1 — Filellum Serpens. — Hassall. /7w?.(?Z;s, Brit. Hydro. Zoo., 

 p. 214, plate 41, fig. 4, 



Parasitical on some of the large Sertulariclce, especially 

 Sertularia ahietina. 



Yery common, Gorran Haven and other parts of Coi*nwall. 

 (C.W.P.) In 100 fathoms off Eekiavick, Iceland. (T.H.) 



*•' Genus, Coppinia. — Hassall. 



1 — Coi'PiNiA Arcta. — Dahell. fJinchs, Brit. Hy. Zoo., p. 219, 

 plate 41, fig. 5. 



On Sertularia abietina and Hydrallmannia and other zoophytes, 

 widely distributed. Grorran Haven, &c. (C.W.P.) 



Genus, Halecium. -— 6^/^^/. 



■^ 1 — Halecium Beanii. — Johnston. Hincks, Brit. Hydro. Zoo., 

 p. 221, plate xliv, fig. 3 and xliii, fig. 2, 2a. 



A delicate and pretty species, it is widely spread. Eather 

 rare ; from Fowey harbour, and off the Deadman in deepish 

 water. (C.W.P.) 



Genus, Diphasia. — Agassiz. 



1 — Du'HAsiA Eosacea. — Linn. Bincks, Brit. Hy. Zoo., p. 245, 

 plate xlviii, fig. 1 . 



Sertulakia llosACEA. — Couch, Corn. Faun. 3, p. 18. 



On Fiuna ingens, from deep water ofi' the Deadman. (C.W.P.) 

 Eather rare. 



2 — DipuAsiA Attenu^ata. — Hincks, Brit. Hy. Zoo., p. 247, 

 plate 11,9, fig. 1 . 



Sertularia Eosacea. — Ellis. Couch, Corn. Faun., p. 18. 



An exceedingly pretty species. It occurred to me at Gorran 

 Haven, Cornwall, and Peterhead, Aberdeenshire. (C.AV.P.) 



