344 
SELACHII. 
Trifjonodus secundus, T. C. Winklor, he. cit. vol. iv. (1870), p. 20, 
pi. ii. figs. 4, 5. — Bru.xollian Eocene ; Brussels. 
Triffonorlns tertius, T. C. Winkler, he. oit. vol. iv. (1876), p. 21, 
pi. ii. figs. 6, 7. — Bnixellian Eocene ; Brussels. 
Lamna triplex, F. A. Quenstedt, ITandb. Petrefakt. 3rd edit. 
(1882), p. 268, pi. XX. figs. 26. — “Feuerstein; Miirk- 
isebo Gescbiebc.” 
Otodus tricuspis, L. Agassiz, Pois. Foss. vol. iii. (1843), p. 273, 
pi. xxxvi. fig. 28. — Lower Miocene ; Wilhelmshbhe, near 
Cassel. 
Orthodon eondamyi, II. Coquand, Beser. Geol. Dept. Charente, 
vol. ii. (1860), p. 126. — Upper Cretaceous ; Charente, 
France. 
Genus PRISTIURUS, Bonaparte. 
[Faun. Ital. vol. iii. 1841, art. 131.] 
Dorsal and anal fins as in SeylUum. A series of small flat spines 
on each side of the upfier edge of the caudal fin. Snout much 
elongated. Teeth small, tricuspid. 
Pristiurus hassei, sp. nov. 
1803. NotidaniM (jomip;), A. Wagner, Abh. k. bay. Akad. Wiss.,math.- 
phys. Cl. vol. ix. p. 296. 
1882. Prisfiurur, C. llasse, Natiirl. Syst. Elasmobr., Besond. Theil, 
p. 2.56, pi. XXXV. figs. 46, 46. 
Type. Nearly complete tish ; Palmontological Museum, Munich. 
A very small species, distinguished from the existing P. melano- 
stomus by the relatively greater size of the tail. The second dorsal 
fin is situated above the hinder part of the anal ; and the length of 
the tail behind the second dorsal is equal to that of the trunk in 
advance ef this fin. 
Form. ^ Loc. Lower Kimmeridgian (Lithographic Stone): Bavaria. 
33003. Plaster cast of t}'pe specimen, figured, without specific name, 
by C. Hasse, op. cit. ; Eichstiidt. The snout is indicated 
as being very obtuse, and, if confirmed, this feature will 
necessitate a slight modification in the acce 2 >ted definition 
of the genus. Purchased, 1864. 
Genus MESITEIA, Kramberger. 
[Bad Jugoslav. Akad. vol. Ixxii. 1885, p. 53.] 
First dorsal fin above or behind the pelvios ; anal fin long. Tail 
