CEPHALOPODA. 31 
The lateral portions of the sheath exhibit deep vascular impressions at the posterior 
extremity. 
The B. sepioidea is found plentifully at Bracklesham Bay, on the coast of Sussex ; 
it is also found at Stubbington (near Gosport) and at Sheppy. In France it occurs, 
according to M. d’Orbigny, in the lower calcaire grossier at Chaumont (en bas), Vivray, 
and Saint Germain; in the upper calcaire grossier at Chaumont (en haut), Grignon, 
Courtagnon, Parnes, Muchi-le-Chatel, &c., and, in the sandy beds above the calcaires 
erossiers, at Tancrou, Aumont, Acy, &c. 
The specimen (Pl. 1, fig. 14) exhibits nearly the entire form of the shell; it was 
found at Sheppy, and enriches the cabinet of Mr. Dixon. The length is four inches, 
and the breadth across the superior extremity of the sheath, if the cast were perfect, 
would be rather more than an inch. The remains commonly found seldom consist of 
more than the rostrum, with, occasionally, portions of the ventral plate, and, more 
rarely, of the posterior extremity of the sheath. The ordinary size of the rostrum is 
six tenths of an inch* long, and three tenths wide at the superior extremity. 
No. 2. BrELosEpiA CuviERI. Deshayes. Tab. I, fig. 3 a—e. 
Serra Cuvrert; Desh. 1837. Foss. des Env. de Paris, p. 758, tab. 101, fig. 7-9. 
_ — Vyst. 1843. Deser. des Coq. et des Polyp. des Terr. tert. dela Belg. 
p- 610, tab. 46, fig. 1. 
— — Pictet. 1845. Traité élém. de Paléont. vol. ii, p. 315. 
— SEPIOIDEA (sp.); D’Orb. 1845-7. Moll. viv. et fos. vol. i, p. 269. 
BeLosEPIA OweEnt; J. D. C. Sowerby. 1849. Dixon’s Geol. Hist. &e. p. 109, tab. 9, 
fig. 13a. 
Nec Serta Cuviert; D’Orb. 1825. Tab. Méth. de la Classe Ceph. p. 67. 
Nec BreLosepia Cuviert; Voltz. 1830. Obs. sur les Bélemn. p. 22, tab. 2, fig. 6a-g. 
Nec Szpta Cuviert; Sow. Min. Con. vol. vi, p. 183, tab. 591, fig. 1. 
Nec Betosrpra Cuvier; J. D. C. Sow. 1849. Dixon’s Geol. Hist. &e. p. 109, tab. 9, fig. 11a. 
B. Testa extremitate posticali lateraliter dilatatd ; rostro brevi, crasso, arcuato, acuto, 
ad basim latissimo ; lamind ventrali arcuatd, profundé sulcatd, in margine denticulata ; 
callo dorsali profundé rugoso, margine inferiori recto aut sursum vergenti. 
M. Deshayes, in his description of this species, refers to Beloptera sepioidea 
(Beloptere de Cuvier) of De Blainville, and to the specimen figured by Mr. Sowerby 
in ‘Mineral Conchology,’ as identical with it. The description given by M. de 
Blainville is rather sub-generic than specific, and is too general for the purpose of 
identity ; but the figures given by him are evidently those of a mutilated specimen of 
* In stating the size of the shells I have used tenth parts of an inch, in order to facilitate a comparison 
with the measurements of French shells; as tenths of an inch may be readily, and with sufficient accuracy, 
converted into “millimetres” by taking 1 tenth as equal to 23 millim. The exact proportion is 305 
millim. = 12 inches; i. e. ‘] in. = 2°54166 &c. millim. 
