A Monograph of the Fossil Lepadidae by Charles Darwin--Delphi Classics (Illustrated) by Charles Darwin

Author:Charles Darwin [DARWIN, CHARLES]
Language: eng
Format: epub
Tags: Parts Edition 7 of 36 by Delphi Classics
Publisher: Delphi Classics (Parts Edition)
Published: 2017-08-24T00:00:00+00:00

(13. POLLICIPES VALIDUS. Tab. IV, fig. 2.

POLLICIPES VALIDUS. Steenstrup. Kroyer’s Tidsskrift, 1839, pi v, figs. 28 — 32.

P. scutis crassissimis, angustis; margine oeeludente externe costa rotundata forti firmato; intus prominentia rostrali infra marginem rectum basalem dependente; costd ab apice ad marginem basalem propius ad rostralem quam ad basi-lateralem angulum accedente. Carina Ioevissima, transverse semicylindricd; parte superiori libere prominente, interne aut plana aut crista centrali instructa.

Scuta, extraordinarily thick, narrow; occludent margin exteriorly strengthened by a rounded, strong ridge; internally, at the rostral angle, a blunt tooth depends beneath the straight basal margin: the ridge running from the apex to the basal margin is nearer to the rostral than to the baso-lateral angle. Carina very smooth, transversely semi-cylindrical; upper freely projecting portion internally, either solid and flat, or with a central prominent crest.

Scania, Sweden. Mus. Univers. Copenhagen. Petersberg, near Maestricht.

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