LAAIXIDJE. 
373 
P. 2303 b. Three comparatively slender small dental crowns; Ota- 
tara series, Trelissic. By exchange, 1876. 
P. 2307 b. Robust tooth, probably of this species, with the outer 
face remarkably flat, one edge sharp and the other rounded ; 
Oamaru System, Tokomariri. By exchange , 1876. 
Odontaspis vorax, Le Hon. 
0 - 
1871. Lamna ( Odontaspis ) vorax, H. Le Hon, Prelim. Mem. Poiss. 
Tert. Belg. pp. 5, 10. 
Type. Detached tooth ; Brussels Museum. 
Teeth slender, those anteriorly placed being much curved and 
attaining a total height of about 0‘025 ; branches of the root short. 
Outer coronal face prominently convex,; inner face smooth; lateral 
denticles long, slender, and pointed, in two or more pairs, the inner 
pair being always much the largest. 
Form. § Loc. Miocene and Pliocene : Belgium. Pliocene : Tuscany. 
47025. Two anterior teeth, only differing from that outlined by Le 
Hon by the relatively greater length and slenderness of 
the crown; Lucardo, Tuscany. Purchased, 1875. 
Odontaspis^^v crassidens, Agassiz. /r 
1843. Lamna crassidens , L. Agassiz, Poiss. Foss. vol. iii. p. 292, pi. xxxv. 
figs. 8-21. £-//, /3 
1849. Lamna crassidens, R. W. Gibbes, Journ. Acad. Nat. Sci. Philad. N 
[2] vol. i. p. 197, pi. xxvi. figs. 116-118. 
1857. Lamna crassidens, G. G. Gemmellaro, Atti Accad. Gioenia Sci. 
Hat. [2] vol. xiii. p. 318, pi. vi. a. figs. 15, 16. 
1879. Lamna crassidens, J. Probst, Wiirtt. Jahresh. vol. xxxv. p. 153, 
pi. ii. figs. 64-68. 
Type. Detached teeth. 
Teeth robust, attaining a maximum total height of about 0-04 ; 
apex of crown only slightly bent inwards, except in the most ante¬ 
rior pair; outer coronal face gently convex; inner coronal face 
strongly convex, flattened in the middle, smooth. Branches of the 
root of moderate length, compressed ; considerably divergent in the 
most anterior teeth. 
As remarked by Agassiz, the detached crowns of the teeth of this 
species can scarcely be distinguished from those of Oxyrhina desorii. 
Form. 6)' Loc. Eocene: Baden, Sicily, and South Carolina, U.S.A. 
Miocene : Wiirtemberg. 
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