ITS PRODUCTIONS. 71 



of Iridcea edulis and of Delesseria sanguinea grow in 

 the shallow hut shaded pools near low water mark. 

 Among the creatures I hrought home were several of 

 the Common Squat Lobster (Galathea rugnsaj and 

 a fine specimen of the much more beautiful Gal. stri- 

 gosa, with its livery of scarlet and azure. Trochus 

 ziziphinus was common ; Cyprcea Europcea, common ; 

 Pecten distort us, several ; Pecten opercularis, small ; 

 A?iomi(B and Serpulce, common on stones ; two or three 

 Botrylli; two of a heemtiiul Pleurobranc/ms ; Dorh 

 tuberculata, D. Johnstoni f^J, and another Doris ; 

 Ophiocoma rosula, abundant, and in much variety ; 

 one had the body velvet-black; — Polynoe cirrata ; 

 Actinia alba, and one or two other small species ; 

 Echinus esc'ule?itus ? ; a rough Sponge ; a small 

 Crab ; and a mass of eggs, probably of a crab. 



THE PLEUROBRANCHUS. 



The most interesting of these captures was the pair of 

 Pleurobranchi. The species proved to be P.plumu- 

 la, an animal very rarely seen by naturalists, and 

 a variety more than usually rich in colouring. It 

 therefore appeared to me worth while to make careful 

 drawings and notes from these individuals, which 

 lived for some time with me (See Plate II.) 



Length when crawling If in. breadth f in. The 

 form oval, convex ; the cloak ample, smooth ; the 

 oral veil, undulate at front margin, the tentacular 

 sides produced into blunt angles, and the centre 

 notched. Dorsal tentacles blunt, curved outwards, 

 projecting a little beyond the veil. Eyes small, black 



