CASSIS (SEMICASSIS) SABURON. 69 



Remarks. — The specimen iioav figured is from the York Museum and was 

 obtained at Boyton ; I have several fragmentary specimens of the same species 

 from Oakley. The Boyton shell corresponds with one I found some years ago in 

 the Pleistocene deposits of Ficarazzi, near Palermo, and with those represented by 

 Chenu, and in the ' Mollusques marins de Roussillon,' except that it is smaller and 

 the sculpture is more delicate. The typical G. hicarinata of the Crag is larger and 

 much stronger. One of the Scaldisien fossils figured by Nyst under the latter 

 name (fig. 14 />) may be the present species. 



Cassidaria bicatenata, J. Sowerby, var. Canhami, A. Bell. Plate II, fig. 14. 



1871. Cassidaria bicatenata, var. CanJiami, A. Bell, Ann. Mag. Nat. Hist. [4], vol. vii, p. 356. 



Dimensions. — L. 108 mm. B. 60 mm. 



Distribution. — Not known living. 



Fossil : Newbournian Crag : Sutton, Waldringfield. 



Reinavlcs. — The shell here figured, Avhich was obtained by the Rev. H. Canham 

 from the Newbournian Crag at Waldringfield, belongs to the Ipswich Museum. It 

 represents a variety differing from the type form of the English and Belgian Crags 

 in the greater length of the spire and the obsolete character of the tubercles. Mr. 

 Bell informs me there are three or four examples of the same kind at Ipswich, the 

 one originally described by him being found at Sutton. Perfect and unworn 

 specimens of G. hicatenata are not uncommon in the Scaldisien of Antwerp, the 

 equivalent of the Waltonian horizon of the English Crag, negativing the view that 

 they are derivative in those deposits ; the Red Crag fossils are usually stronger and 

 more solid than those found in the Coralline Crag or at Antwerp. 



Genus CASSIS, Lamarck, 1799. 

 Sub-genus SEMICASSIS, Klein, 1753. 

 Cassis (Semicassis saburon) (Bruguiere). 



1792. Cassidea saburon, Bruguiere, Ency. Metli., p. 420, uo. iv. 



1856. Cassis saburon. Homes, Foss. Moll. Tert. Wien, vol. i, p. 177, pi. xv, figs. 2 — 7. 



1872. Cassis saburon, S. V. Wood, Mon. Crag Moll., 1st Suppl., p. 10, tab. vi, fig. 1. 



1873-75. Cassis (Cassidea) saburon, Seguenza, Boll. E. Com. G-eol., vol. iv, p. 300, 1873 ; vol. vi, 



p. 278, 1875. 

 1879-82. Cassis saburon, Fontannes, Moll. Plioc. Rhone, vol. i, p. 96, pi. vi, fig. 17. 

 1882. Cassis sabtiron, Bucquoy, Dautzenberg, et DoUfus, Moll. mar. Eouss., vol. i, p. 64, pi. vii, figs. 



1,2. 

 1885. Cassis saburon, Van den Broeck, Mel. Geol., pt. ii, p. 35. 

 1890. Cassis saburon. Cams, Prod. Faun. Medit., vol. ii, p. 374. 

 1892. Cassis saburon, Van den Broeck, Bull. Soc. Belg. G-c'ol., vol. vi (Memoires), p. 121. 



