History of British animals - University of Guam Marine Laboratory

308 MOLLUSCA. PECTINIBRANCHIA. Cingdla.Length |ths of an inch ; breadth about |ths ; conic, smooth, subpellucid,horn-coloured ; whorls deeply divided by the separating line ;apex moderatelypointed ; inner lip forming an angle about the middle, behind which is anarrow cavity. Montagu compares this species to Limnea fossaria, to which,itmay be added, some of the numerous varieties of Turbo quadrifasciatus beara close resemblance, and with which the present species is probably connected.-242. C.putta.— Whorls five, rounded, the first large ; striatedor spotted with pink.Turbo pullus, Linn. Syst.i. 1233. Don. Brit. Shells, t. ii. f. 2-6. MontTest. Brit. 319.— On fuci, on the English and Irish coasts.Length |ths of an inch ;breadth one-half less, smooth, glossy, finely variegatedwith pink, purple, or brown ; strong;whorls decreasing rapidly, deeplydivided by the separating line ; aperture suborbicular ; pillar-lip reflected,and forming behind a small cavity ; operculum strong, thick, testaceous, veryconvex, white and smooth externally ; the interior part, when separated fromthe animal, is a little concave, and has a small and singular spiral turn nearone end.243. C. ulvce.— Whorls five to seven, nearly flat ;outer lipeven retrally.Turbo ulvfe, Penn. Brit. Zool. iv. 132. t. lxxxvi. f. 120. Mont. Test. Brit.313.— In muddy inlets, common.Length fths, breadth £th of an inch ; corneous, thick, opake whorls with;a distinct separating line, and slightly wrinkled across by lines of growth ;outer lip nearly straight retrally ; pillar-lip reflected and forming behind aslight longitudinal cavity ; operculum radiated with arched striae from theinner margin.244. C. suburnbtlicata.— Whorls five to seven, rounded, thefirst occupying above half the lengthof the shell.Turbo sub. Mont. Test. Brit. 316—About the roots of fuci, common.Length T 3 5 ths, breadth ^th of an inch ; greenish-grey, smooth, glossy ;whorls well defined by the separating line ; apex obtuse ; aperture suborbicular,the outer lip rounded ; the pillar-lip reflected, forming behind a smallcavity.245. C. interrupta.— Whorls five or six, slightly rounded,with interrupted spiralbrown bands.Turbo in. Adams, Linn. Trans, v. 3. t. i. f. 16, 17- Mont. Test. Brit.329.— On fuci, common.Length about ph of an inch ; breadth |ds less ; pellucid, glossy, palebrown'; the coloured bands frequently form rows of oblong spots ; aperturewide ; outer lip rounded, very thin ; pillar-lip scarcely reflected.246. C. rubra.— Whorls five, rounded, translucent, glossy,brown, with a fine separatingline.Turbo ruber, Adams, Linn. Trans, iii. 66. t. xiii. f. 21. Mont. Test. Brit.320—At the roots of fuci, not uncommon.Length |th of an inch ; breadth §ds less; the pillar distinctly visible fromthe outside ; aperture suborbicular ; pillar-lip slightly reflected.247. C. vitrea.— Whorls four, rounded, nearly transparent,white.