296 
KArXlLOIDEA. 
instead of being above the centre. The present species bears some 
resemblance to Nautilus Deslonffchampsianus, d’Orb. h but the latter 
has a more inflated shell, a distinctly angular umbilical border, and 
longitudinal as -well as transverse ornaments. 
“ We have pleasure in associating with this species the name of 
Mr. T. G. Bayfield, of Norwich, from whose fine collection of Upper- 
Chalk fossils all the examples of this species, now in the British 
Museum, were derived.” (Foord and G. C. Crick.) 
Horizon. Upper Chalk. 
Locality. Norwich. 
AVell represented in the Collection. 
Nautilus vastus, Kner. 
1850. Nautilus vastus, Kner, Versteiii. des Kreidemergels von Lemberg 
und seiner Umgebung (Ilaidinger’s Natur\viss. Abhandl. Band iii. 
Abtli. ii.), p. 6, Taf. i. ff. 1 , a-c. 
1850. Nautilus vastus, Alth, Geognostiscli-Baliiontologische Besclirei- 
bung der nachsten Umgebung von Lemberg (Ilaid. Natiirw. 
Abhandl. Band iii. Abth. ii.), p. 203. 
? 1861. Nautilus depressus, Binkhorst, Monographie des Gast^ro])odes 
et des C(5phalopodes de la Craie Siiperieur dii Limbourg, p. 12, 
tab. V. ff. 9, a-c. (Not Nautilus depressus, Bose, in D^terville’s 
ed. of Biiflbn, 1709 (?), Vers, pi. 42. f. 8, which is a BeUeroplion 
1876. Nautilus cf. depressus, SchUiter, Ceplialopodeu der oberen Deut- 
schen Kreide, Palaeontograpliica, Band xxiv. Abth. ii. p. 181. 
Sp. Char. Shell much inflated ; the periphery scarcely distin- 
guishable from the sides, which form therewith an almost uninter- 
rupted curve. The greatest width of the whorls is in the region of 
the umbilicus. The latter is closed or exceedingly small. The septa 
are rather widely separated, their distance apart being 1 inch on a 
fragment where the shell is 3| inches wide. The sutures are, as 
nearly as possible, straight upon the periphery, but slightly curved 
forwards at the junction of the latter with the sides of the shell ; 
on the sides they form a very slight backwardly directed curve. 
The siphuncle is situated .between the centre and the peripheral 
border. 
Remarks. This species resembles Nautilus Bouchardianus, d’Or- 
^ Paleont. Francaise (Terr. Cret.), vol. i. p. 90, pi. xx. 
^ This species (Kautilite deprime) is figured also in Sonnini’s ed. of Buffon’s 
Hist. Vat. des Mollusqiies (1798), edited by Denys-Montfort, vol. iv. p. 298, 
pi. iv. fl'. 2, 3. See also Schlotheim, 'Die rctrcfactenkundo.’ 1820, p. 83. 
