Alfred Bell — Fossils of East Anglian Boxstones. 421 



Lucina (Dentilucina) Barrandei, Mayer. 



Lucina Barrandei, Mayer, Journ. de Conch., vol. xix, p. 340, pi. x, fig. 1, 



1871. 

 Dentilucina Barrandei, var., Sacco, Moll. Terr. terz. Piemonte, pt. xxix,.p. 83, 



pi. xix, figs. 7-9, 1901. 

 Lucina Canhami, A. Bell, Journ. Ipswich Field Club, vol. iii, p. 9, 1911. 



Mus. Ipswich. 



Syndosmya sp. 



[Two or three species of this group are present in the "boxstones", 

 possibly the Erycina longicallis and E. similis, figured in Philippi, En. Moll. 

 Sic, vol. ii, pi. xiii, figs. 7, 8, but they are not sufficiently definite for accurate 

 determination. Stanley Coll.] 



Syndosmya prismatica (Montagu). 



Ligula donaciformis , Nyst, Coq. terr. Beige, p. 92, pi. iv, fig. 9, 1843. 

 Air a prismatica, S. V. Wood, Mon. Crag Moll., pt. ii, p. 239, pi. xxii, fig. 13, 

 1850. 



Mus. Pract. Geol. London, York. 



Thracia ventricosa, Philippi. 



Thracia ventricosa, Philippi, En. Moll. Sic, vol. ii, p. 17, figured in vol. i, 



pi. i, fig. 10 (as T . pubescens) , 1844. 

 Thracia ventricosa, S. V. Wood, Mon. Crag Moll., Suppl. 2, p. 48, pi. v, 



fig. 3, 1879. 



Mus. Ipswich. 



Teredo borings in wood are not uncommon, but the shells have 

 entirely disappeared. 



[Certain shells of pre-Crag origin are found in the Oakleyan and Newbournian 

 zones of the Red Crag, and as some of these also occur embedded in the box- 

 stones they are presumably of the same age. 



Most of these are figured by Mr. S. V. Wood in the Supplements to the Crag 

 Mollusca, and by Mr. F. W. Harmer in the Monograph on the Pliocene 

 Mollusca now in course of publication. 



A few like the Rimellce, Serpulce, Turritellce, and Venericardia occur 

 in profusion, but as a rule the majority are single specimens, as in the 

 following list : — ■ 



Borsonia suffolciensis. Purpura derivata. 



Pleurotoma denticulata. Stenomphalus Weichmanni. 



,, interrupta. Triton connectens. 



,, nodifer. Ranella (?) anglica. 



,, plebeia. Semicassis saburon. 



,, Selysii. Rimella, two or three species. 



Cancellaria evulsa. Turritella, two or three species. 



Ancillaria glandiformis. Solarium, two or three species. 



Volutilithes luctatrix. Ostrea, two or more species. 



,, ' nodosa. Pecten Hceninghausii. 



,, suturalis. ,, Sollingensis. 



Mitra fusiformis (?). Venericardia, several varieties. 



Fusus abrasus. Lucina crassidens. 

 ,, crispus. 



I have not seen any specimens of the typical Valuta Lamberti of the English 

 or Belgian Crags, or of Pyrnla (Ficula) reticulata, or Cassidaria bicatenata in 

 the "boxstones". The latter, however, is said to occur sparingly in the 

 " Sables noirs d'Anvers ". 



Voluta Lamberti, Atractodon elegans, and Cassidaria bicatenata are occa- 

 sionally washed ashore on the coast, from Aldborough to Walton-on-the-Naze, 



