a*. f$“ M' ilt i z 
$r ^Af s ^ ^ N 
<* V 7 Gctleocerdo Icevissimus^ E. D. Cope, Proc. Acad. Nat. Sci. Philad. 
^ V? •'- 1867, p. 141.—Miocene; United States. 
(?) Galeocerdo maretsensis, T. C. Winkler, Archiv. Mus. Teyler, 
vol. iv. (1876), p. 10, pi. i. figs. 10, 11, 12.—Heersian 
Beds ; Belgium. (? Prionodon.) 
Galeocerdo prisms (Zigno), P. Bassani, Bend. B. Accad. Sci. Pis. 
• e Matem. 1888, p. 375 : Galeodes priscus, J. J. Heckel, 
Sitzungsb. math.-nat. Cl. k. Akad. W 7 iss. Wien, vol. xi. 
(1854), p. 324.—Upper Eocene; Chiavon, Vicentin, 
Italy. 
Galeocerdo productus, L. Agassiz, Amer. Journ. Sci. [2] vol. xxi. 
(1856), p. 273.—Tertiary; Ocoya Creek, California; 
Galeocerdo subloevis, G. von Miinster, Beitr. Petrefakt. vii. (1846), 
p. 20 : Gcdeus sublcevis, G. von Miinster, op. cit. v. (1842), 
p. 66.—Miocene ; Vienna Basin. 
Galeocerdo vincenti, A. Daimeries, Ann. Soc. Boy. Malacol. Beige, 
V A. Proc.-Verb., June 1888, p. liv (name only).—Heersian 
Beds; Belgium. 
Possil vertebrae of Galeocerdo have been described by C. Hasse, 
Natiirl. Syst. Elasmobr., Besond. Theil (1882). Some resembling 
( those of the existing G. tigrinus are recorded from the Molasse of 
Baltringen, Wiirtemberg (p. 260, pi. xxxvi. fig. 17), and the Crag 
of Antwerp (p. 260, pi. xxxvi. fig. 18) ; others resembling those of 
•frtfcn.&yt**' ^he existing G. circticus are recorded from the Swiss Molasse (p. 262, 
% ph xxxvii. figs. 25, 26), and from the Miocene of Germany and 
v " Prance (p. 262, pi. xxxvii. figs. 27-32). Vertebrae from the Sain¬ 
land Eocene are also described by P. Noetling, loc. cit. p. 99, pi. ix. 
• figs. 6-10. 
Genus MISMIPRISTiS* Agassiz. 
SELACHII. 
Ft 
f n 
%'<P‘ 
S' [I* 0 ! 88 - F° ss - vol. iii. 1843, p. 237.] 
Syn. Dirrhizodon, C. B. Klunzinger, Verhandl. k. k. zool.-bot. Gesell. 
Wien, vol. xxi. 1871, p. 664. 
Principal teeth elevated and triangular, more or less curved or 
inclined backwards, with both coronal margins coarsely serrated, 
except towards the apex ; root well-divided into two divergent 
branches. Upper teeth relatively large, broad, and flat; anterior 
lower teeth slender, subulate, inwardly curved, and destitute of 
denticulations or with one or two minute points at the base. 
This genus was originally founded by Agassiz upon fossil teeth 
from the Molasse of Wiirtemberg, but a living species of the fish 
(H. elongatus) has subsequently been discovered in the Bed Sea. 
