SPECIMEI^S OF FOSSIL CEPHALOPODA. 
47 
Conchyliolithus N. Ammonites (luidii) anfractibus extrinsecis 
teretibus, &c., W. Martin, Petrificata Derbiensia, 1809, pi. xxxv, 
ff. 1, 2, and App. p. 16. Carboniferous Limestone : near Ashford. 
Derbyshire. [C. 1547.] 
Cone of Belemnite (alveola), v. Belemnite^ cone of. 
Conularia teres, J. Sowerby, Min. Conch, vol. hi, p. 108, 1820, 
pi, cclx, fF. 1 & 2 (reversed), Orthoceras teres (J. Sowerby) : A. H. 
Foord, Cat. Foss. Ceph., British Museum, pt.i, 1888, p. 121. Carbo- 
niferous Limestone : Tronlie Bank,” near Glasgow. [36475.] 
Cornu ammonis,” J. Parkinson, Org. Bern. vol. hi, p. 140, pi. ix, 
f. 8 (reversed). Gault : “ Foreign (?).” [43932.] Decomposing. 
Cosmoceras parkinsoni, Aptychus probably belong to, v. under 
Aptychns. 
Crioceras astierianns, A. d’Orbigny, Pal. Fran^., Terr. Cret. vol. i, 
1840-1842, p. 468, Atlas, pi. cxv bis, ff. 3, 4. Gault ; Escrag- 
nolles (Yar), France. [46953.] 
Crioceras dnvalli, C. Leveille' : J. Prestwich, ‘ Geology,’ vol. ii, 1888, 
pi. xii, f. 3. Neocomian : Barreme (Basses- Alpes), France. [46924.] 
Crioceratites bowerbankii, J. de C. Sowerby, Trans. Geol. Soc. 
[2], vol. V, 1840, p. 410, pi. xxxiv, ff. 1, 1 a. Lower Greensand ; 
I. of Wight. [46474.] 
Cyrtoceras approximatum (J. de C. Sowerby) : J. F. Blake, Brit. 
Foss. Ceph. pt. i, 1882, p. 172, pi. xx, ff. 1, la. Wenlock Beds?, 
Dudley. [69780.] 
Cyrtoceras ? bdellalites, J. Phillips, Pal, Foss. Cornwall, &c., 1841, 
p. 117, pi. xlvii, f. 223 a. Middle Devonian : Mudstone Bay, 
S. Devon. [C. 1574 a.] 
Cyrtoceras ? bdellalites, J. Phillips, Pal. Foss. Cornwall, A;c., 1841, 
p. 117, pi. xlvii, f. 223 h. Middle Devonian : kludstone Bay, 
S. Devon. [C. 1574 6.] 
Cyrtoceras centrifugum, J. W. Salter, in J. Y. Salter & H. F. 
Blanford, Palmont. Niti, 1865, p. 13, pi. ii, f. 1. Lower Silurian 
(Ordovician ?) : Bimkin, Himalaya Mts. [C. 4529.] 
