eee emia 
PISCES. 
41 
C@iLOCEPHALUS, L. Agassiz, Poiss. Foss., vol. v, pt. ii (1843), 
p. 139, and Rep. Brit. Assoc., 1844 (1845), p. 308 (name 
only). 
salmoneus, L. Agassiz, bd. (1843), p. 139, and zézd. (1845), p. 308 
(name only). 
Loc. London Clay ; Sheppey. [Imperfect skull ; Brit. Mus.] 
CELODUS, J.J. Heckel, Denkschr. k.k. Akad. Wiss. Wien, Math.- 
naturw. Cl., vol. xi, 1856, p. 202. [Name universally adopted, 
but preoccupied by Ce/odon, Lund, 1839.| 
? ACROTEMNUS, L. Agassiz, Poiss. Foss., vol. ii, pt. ii (1843), 
p. 202. 
angustus (Agassiz), K. A. von Zittel, Handb. Palont., vol. iii 
(1887), p. 249: A. S. Woodward, Proc. Geol. Assoc., vol. x 
(1888), p. 307. 
Gyrodus angustus, L. Agassiz, Poiss. Foss., vol. ii, pt. ii (1843), 
pp. 235, 246, pl. Ixvi a, f. 14, 15; J. Morris, Cat. Brit. Foss., 
1854, p. 327; F. Dixon, Geol. Sussex, 1850, p. 370, pl. xxx, 
fe 14, Ob xxxiii, f. 1. 
Pycnodus angustus, L. Agassiz, Poiss. Foss., vol. ii, pt. 11 
(1843), p. 199 (name only); J. Morris, Cat. Brit. Foss., 1854, 
p. 342. 
Pycnodus elongatus, L. Agassiz, Poiss. Foss., vol. ii, pt. 11 (1843), 
p. 199. 
Loc. Chalk; Sussex and Kent. [Series of teeth ; Brit. Mus. 
(pars). | 
cretaceus (Agassiz), K. A. von Zittel, Handb. Paleont., vol. iii 
(1887), p. 249; A. S. Woodward, Proc. Geol. Assoc., vol. x 
(1888), p. 308. 
Pycnodus cretaceus, L. Agassiz, Poiss. Foss., vol. ii, pt. 11 (1843), 
py 190, pl. Ixxiia, f. 60; J. Morris, Cat. Brit. Foss., 1854, 
p. 342. 
Loc. L. Chalk; Kent. [Mandib. teeth ; 0/77 Cumberland Coll.] 
ellipticus, P. M. G. Egerton, Geol. Mag. [2] vol. iv, 1877, p. 49, 
pl. iii, f. 1. 
Loc. Gault; Folkestone. [R. mandib. dentition ; Brit. Mus. ] 
? faba (Agassiz), K. A. von Zittel, Handb. Paleont., vol. iii (1887), 
p- 249; A. S. Woodward, Proc. Geol. Assoc., vol. x (1888), 
p. 308. 
Acrotemnus faba, L. Agassiz, Poiss. Foss., vol. ii, pt. ii (1843), 
p. 203, pl. Ixvia, f. 16-18; J. Morris, Cat. Brit. Foss., 1854, 
p- 316. T. (Acrotemnus.) 
Loc. Chalk; Sussex. [Associated teeth ; Brit. Mus.] 
gyrodoides, P. M. G. Egerton, Geol. Mag. [2] vol. iv, 1877, p. 52, 
pliiv,:f. 3. 
Loc. U. Greensand ; Pinney Bay, Dorsetshire. 
Mus. ] 
[Vomer ; Brit. 
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