THE BLACK SAXD-TVOEM. 31 



two remarkably large examples of it on Byng Cliff 

 Ledge. It is larger in size, and coarser in appearance 

 than the other kinds, and is always tinged with a 

 bluish-gTey or livid-green hue, thongh the character- 

 istic marks and habits are always to be recognised. 

 It is fond of taking np its abode within the angular 

 cells or chambers of Eschar a foliacea, which affords 

 a retreat to so many and so various creatures. 



I found beneath a stone another specimen of a 

 worm that seems to be uncommon, but which I have 

 met with also near Ilfracombe, as I have recorded 

 elsewhere, — the Black Sand Worm [Areyiicola hran- 

 cMalis) ; and a much more elegant animal of the same 

 class, which was new to me, Sigalion hoa ; it bears 

 a general resemblance to the scale-bearing PoJynoes, 

 but is drawn out to a much gTcater length, with very 

 numerous segments. Crawling in a pool occun'ed also 

 the beautiful Orange Pleurobranchus (P. plumula) ; 

 the great yellow Doris {D. tuber culatci) was adhering 

 to a stone out of water, having resorted to the shallows, 

 doubtless, for the depositing of its ribbon of spawn, 

 where it had been left by the recess of the tide ; — and 

 the pretty little Cowry ( Cypr(jea EuropOici) , with ribbed 

 porcelain shell, and elegantly painted body, was not 

 uncommon. I saw for the first time Pilummis hir- 

 tellus, a little hairy Crab that has a great love for the 

 darkness, always resorting to the obscm'est crannies ; 

 and Athanas mtescens, a tiny species of Prawn, of a 

 dark sea-green hue, whose well- developed pincers give 

 it so much the aspect of a lobster, that it is generally 

 believed, "s\athout doubting, by the fishermen, to be the 

 young state of that much-honoured Crustacean. The 



