MALACOZOA. GASTEROPODA. 347 



the body, anteriorly abrupt, rather narrowed behind, with the 

 surface smooth, and the margins indistinct, unless before and 

 behind. The sides erect, flat, smoothish, being but faintly 

 rugoso-reticulate, and at the middle nearly as high as the 

 breadth of the foot. The upper part arched in both direc- 

 tions, little broader than the foot, rugoso-reticulate, the mar- 

 gin slightly projecting. The anterior margin or veil some- 

 what semicircular in its direction, widely repand in the 

 middle, thin, and rather narrow. Behind it are two obtuse 

 tentacula, in two short sheaths. The mouth presents the ap- 

 pearance of a vertical, thick-lipped slit, and is furnished inter- 

 nally with two horny dull-yellow plates of great size. Six 

 ramose branchiae on each side, of which only some portions 

 remain. The genital and anal apertures on the right side, 

 separated to a considerable distance, the anterior in the form 

 of an oblique slit, the other circular, and with a smaller cir- 

 cular aperture above it. The colour of the upper part black, 

 paler and tinged with brown in the middle, of the sides livid 

 purple, of the foot purplish- white. Length an inch and three- 

 fourths, breadth seven-twelfths, height eight-twelfths. 



It is probable that were I to continue my efforts, ob- 

 jects would daily or weekly occur for months to come ; 

 but the time which I can with propriety devote to the 

 Mollusca of Aberdeenshire is now ended, and other 

 subjects of investigation present themselves. The beach 

 is thickly covered with the sweepings of the ocean, 

 amid which are thousands of Crustacea, annulata, acti- 

 nozoa, and zoophyta all of which present objects of 

 interest to the zoologist. The fishermen and their chil- 

 dren are engaged in collecting the Lugworms that have 

 been cast ashore ; and as there are at least two hundred 

 baskets, and in each probably about five hundred worms, 

 besides Mollusca, one may calculate what a destruction 

 of animal life has resulted from the late easterly gale. 

 Of our more common bivalve Mollusca one might ga- 

 ther as many specimens as would supply all the cabi- 

 nets of Europe, and of the rarer and more delicate, 

 some are here and there to be seen among the sea- 

 weed. No doubt, in this mass are many not hitherto 



