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I.—On Recent and Fossil Pleurotomariæ

Published online by Cambridge University Press:  01 May 2009

Henry Woodward
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Extract

The progress of modern discovery, both in Palæontology and Zoology, has been steadily tending to bridge over the gap which seemed at one time to separate the past from the present life-history of our globe, and has brought each more closely into relationship with the other than seemed possible fifty years ago.

Type
Original Articles
Information
Geological Magazine , Volume 2 , Issue 10 , October 1885 , pp. 433 - 439
Copyright
Copyright © Cambridge University Press 1885

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References

page 434 note 1 Bulletins of the Museum of Comparative Zoology at Harvard College, vol. ix. Nos. 1–5, pp. 78–79, June—Dec. 1881.

page 435 note 1 Dr. C. Gottsche writes (Berlin, 22 July, 1885), “In Dr. Hilgendorf's specimen, which is a little rolled, and covered with Serpulæ and Bryozoa, the aperture is entirely broken a way, so that the slit can only be reconstructed from the band.” He adds that two more specimens of P. Beyrichii were brought back by Dr. Doederlein, of Strassburg in 1882, but they do not exhibit the slit itself. This statement brings the total number of living specimens of Pleurotomaria of all species known, up to 13 individuals.

page 439 note 1 Sowerby's description is as follows:–“Pleurotomaria, Defrance. Gen. char. A trochiforrn spiral shell, with an angular sinus near the middle of the outer lip, from which a band marked with lines of growth that indicate the sinus is carried round the whorls; no beak or sinus at the base of the aperture; a columelia with or without an umbilicus.”—(Sowerby, Min. Conch.)