CYNTHIA L1MACINA. 93 



Hal). - - On a dead shell in 25 fathoms water 

 (Me Andrew fy Forbes). 



ENGLAND. -[? Hastings, Sussex (Bowerbank) .~\ 

 Mount's Bay, Cornwall (McAndrew $ Forbes). [Scilly 

 Isles (Oarus, 1850).] 



CHANNKL ISLANDS. [Guernsey (Ansted, 1862).] 

 First record. Forbes, 1848; coll. McAndrew & 

 Forbes, 1846. 



A specimen sent to us from Hastings by Dr. Bower- 

 bank appears to belong to this species. The body is 

 extremely depressed and nearly flat, with the basal 

 margin sinuous. The test is soft and pellucid in com- 

 parison with that of C. tessellafa, and the tessellations 

 are only about half the size of those of that species, 

 and are shorter, rounder, and less regular. There was 

 no colour remaining. The visceral characters could not 

 lie determined as they had been injured by pressure. 

 The mantle, however, is thin, transparent, and mem- 

 branous, and adheres strongly to the test throughout ; 

 the muscular fibres are excessively fine. 



8. Cynthia echinata (Linnaeus) Alder. 



(PI. XXX, fig. 10; PI. XXXII, fig. S; PI. XLVIII, 

 fig. 8 ; and fig. 59 in text.) 



Ascidia echinata LINNAEUS Syst. Nat. ed. 12, [I, pt. 2 (1767),] 

 p. 1087; [P. MULLER Linne Natur-Syst. I, 1 (1775), p. 

 86 ;] O. F. MULLER Zool. Dan. Prodr. [1776], p. 224, no. 

 2722, and Zool. Danica, IV [1806], p. 10, pi. cxxx, f. 1 ; 

 FABRICIUS Fauna G-rcenl. [1780], p. 331 ; [BRUGUIERE Hist. 

 Nat. Vers, I (1789), p. 147; G-MELIN Linnasi Syst. Nat. 

 I, pt. 6 (1791), p. 3124; Bosc Hist. Nat. Vers, I (1802), 

 p. 104; TURTON Gen. Syst. Nat. IV (1802), p. 93;] 

 LAMARCK Hist. Nat. Anim. sans Vert. [ed. I, III (1816), 

 p. 123, and] ed. 2, III [1840], p. 528; [THOMPSON in Ann. 

 Nat. Hist. (1) V (1840), p. 94;] FORBES & HANLEY Brit. 

 Moll. I [1848], p. 35 [pi. C, f. 4]; [COCKS in Hep. R, 

 Cornw. Polyt. Soc. 1849 (1850), p. 73;] THOMPSON Nat. 

 Hist. Ireland, IV [1856], p. 360; [NORMAN in Zoologist 

 XV (1857), p. 5708; DICKIE in Rep. Brit. Assoc. for 1857, 

 (1858), p. 111]. 



