Frederick Dixon
Published: 2013-09
Total Pages: 160
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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1850 edition. Excerpt: ...are scattered in all directions. At Hampstead and Highgate, single valves only have been found by Mr. Wetherell. CRUSTACEA. Astacus Bellii. (Tab. XV. figs. 3 & 4.) Spec. Char.--Thorax smooth and punctate; claws and moveable finger having a strong obtuse carina, and furnished with a double series of spines; abdomen smooth, punctate, and slightly sculptured. The double row of spines may be accidental, as they are sometimes observed on recent Lobsters. I have called this species after my friend Thomas Bell, Esq., F.R.S., F.G.S., the author of the excellent work on British Crustacea. Fossil Crustaceans are very rare at Bognor and Bracklesham, though common in the London clay at Sheppey and Highgate. A work is much wanted on British Fossil Crustacea, and I hope Mr. Bell will turn his attention to the subject when he has finished the recent species. Cancer Leachii, Konig. (Tab. XV. fig. 5.) This specimen is in sulphuret of iron, and was found by G. A. Coombe, Esq. It is now in the cabinet of T. Bell, Esq. I have one more specimen of this species in my own collection; these being the only two examples I have been able to procure from Bognor. At Alum Bay in the Isle of Wight, this species occurs in very fine preservation, from the Eocene formation of that locality. CONCHIFERA DIMYARIA. Pholas Pechellii. (Tab. XIV. fig. 10.) Spec. Char.--Shell subclavate, concentrically striated; anterior portion but slightly sinuated, small, separated by a deep, narrow, oblique furrow, which is directed backwards; beaks anterior, not prominent; length half the width. A species almost destitute of imbricating teeth upon the lines of growth, and thus approaching to Teredo. It occurs very rarely, in fossil wood at Bognor. It is named after my esteemed friend...