20 BEITISH TUNICATA. 



lobes. Thorax orange-coloured, the branchiae with ten 

 or twelve rows of stigmata. Abdomen short, stomach 

 plicated. Post-abdomen pedunculated, rather short 

 and stout, ending in a distinct mucro. 



Height of mass three-tenths of an inch (7 mm.). 

 Length of individuals two-tenths (5 mm.). 



Hab. Under shelving rocks at low water-mark 

 of spring tides. 



ENGLAND. North coast of the Isle of Man, abundant 

 (Forbes). Douglas Bay, Isle of Man (Alder). 



IRELAND. ? Belfast Bay, Antrim (Drummond). ? 

 Strangford Lough, Down (Thompson). 



CHANNEL ISLANDS. -- Guernsey (Alder). Gouliot 

 Caves, Sark (Norman). 



First recordThompson, 1840; or Forbes, 1848. 



This species appears to be confined to the south and 

 west coasts. It has not yet been found on the north- 

 east coast of England or Scotland. 



2. Parascidia Fleming!! Alder. 

 (Plate LIV, figs. 8 and 9; and PI. LVI, fig. 5.) 



? Sydneitm turbinatum FLEMING Brit. Anim. [1828], p. 469, 



and Moll. Anim. (1837), p. 212. 

 ? Sidnymn turbinatum COLDSTREAM in Edinli. new Philos. 



Journ. IX (1830), p. 239; ALDER & HANCOCK in Trans. 



Tyneside Nat, Field Club, I [(1848), p. 203]. 

 [Non Sidnyum turbinatum SAVIGNY Mem. Anim. sans Vert. 



pt. 2 (1816).] 

 Parascidia Flemingii ALDER in Ann. Nat. Hist. (3) XI 



[1863], p. 172, [and in Rep. Brit. Assoc. for 1866 (1867), 



p. 208; NORMAN in Rep. Brit. Assoc. for 1868 (1869), 



p. 303] . 



Colony turbinate, inversely conical, or clavate and 

 pedunculate, tapering to a narrow base, several masses 

 being generally associated and united by a creeping 

 fibre (PL LIX, fig. 8) ; transparent, gelatinous, 

 yellowish or greyish white [flesh-coloured], appearing 

 more or less of a reddish orange from the enclosed 



