590 EOLIDID^. 



ill series or fascicles, along the margin and sides of the 

 back, in some species nearly covering it. Foot linear 

 or lanceolate. Orifices of generative system and vent at 

 the right side. 



Section I. Eons. — Branchiae numerous, depressed, and 

 imbricated. Body broad. Tentacles smooth. Spawn of 

 numerous waved coils. 



1. E. PAPILLOSA, Linnseus. 



Plate B. B.B. f5g. 1, (var. Zetlandica). 



Limax papillosus, Linnaeus, Syst. 1082. 



Doris papulosa, Muller, Zool. Dan. t. cxlix. f. 1-4. — Montagu, Lin. Trans. 



vol. xi. p. 1 6, pi. 4, f. 2, 

 Tritonia papulosa, Fleming, Ed. Enc. xiv. p. CI 9. 

 Eolida papulosa, Fleming, Brit. An. p. 285. — Johnston, Loudon's Mag. Nat. 



Hist. vol. viii. p. 376. — Ann. Nat. Hist. vol. i. p. 118. 

 Doris vermigera, Turton, Brit. Fauna, p. 133. 



Eolis Zetlandica, (var.) Forbes and Goodsir, Proc. Brit. Assoc. 1839 ; Athe- 

 naeum, No. CIS, p. 647. 

 „ rosea, (var.) Alder and Hancock, Ann. Nat. Hist. vol. ix. p. 34. 

 „ obtusalis, (var.) Alder and Hancock, Ann. Nat. Hist, vol, ix. p. 34. 



This very variable species is the largest of our British 

 Eolida, attaining a length of nearly three inches. Its 

 body is oblong, thick, and broad, gradually becoming 

 pointed behind. It is usually of a brownish purple colour, 

 with opake white specks. The middle of the back is 

 smooth, the sides are thickly clothed with reflected and 

 appressed oblong branchite, ranged in more or less dis- 

 tinct rows, from six to twenty in number, according to 

 size, and each composed of from four to six or more bran- 

 chiae. They are all olive, pink, brown, or more rarely 

 yellowish. The dorsal tentacula are rather short, stout, 

 and wrinkled ; the oral ones are simple and short. The 

 foot is white. 



