Copy 1

A conchological dictionary of the British Islands / by William Turton.

  • William Turton
Date:
1819
Catalogue details

Licence: Public Domain Mark

Credit: A conchological dictionary of the British Islands / by William Turton. Source: Wellcome Collection.

    278/366 (page 192)
    rita tribes, as the imagination of different authors has fan-- cied their approximation. They are all of modern. disco-- very, and in none of them is the pillar-lip sufficiently trats-- verse to entitle them to a place among the Nerites: wee think therefore that they form a singularly appropriate di-- vision, in contrast with the second, where the pillar-lip iss placed rather transversely and flattened, but without thee groove and perforation. A. The pillar-lip flattened, with a groove along its mid: dle which terminates in a perforation, | to 6. B. The pillar-lip flattened, without groove or perfora-- tion, 7 to 15 C. Solid, and imperforate behind the pillar, 16 to 3). D. Solid, and perforated behind the pillar, 32 to 34. E. The spires cross-barred, or reticulate, 35 to 56. F. Tapering, but not cross-barred, 57 to 66. G. The aperture toothed within: spires regular, 67] to 78. H. The spires reversed, 79 to 85. I. Flat, and resembling the Helix, 86 to 92. Kx. Indistinct species, 93 to 105. A. The pillar-lip flattened, with a groove along its middlee, which terminates in a perforation, | to 6. 1. Turbo pallidulus. Pallid Turban. Fig. 85, 86. Nerita pallidula. Da Costa, pl.4. f. 4, o— Donovan, t pl. 16. f. 1—Dorset Cat. pl. 20. f. 4, 5. Shell transversely oval, thin, semitransparent, very ich - scurely striate longitudinally, and slightly wrinkled acrossj, whitish covered with a pale brown or greenish skin: spires: three or four, the first very large and much spread towardss the outer margin, the others placed laterally and flat uponn the surface, or having the appearance of being rather sunki beneath it: aperture ample, nearly orbicular, slightly ano gular towards the pillar, much spread at the margin ; thes outer-lip thin, somewhat reflected and fringed by the outer’ skin ; pillar-lip broad, oblique but not transverse, with ¢: rather narrow groove which terminates in a somewhas spire ae