CESTEACIOSTID^. 
2^53 
28479. Three tooth-fragments, perhaps of this species ; Crailsheim, 
Wiirtemberg. Purchased, 1853. 
P. 2179. Similar fragment ; Crailsheim. Etjerion Coll. 
Hybodus polycypbus, Agassiz. 
184.3. Jlyhodus polycyphus, L. Agassiz, Poiss. Foss. vol. iii. p. 193, 
pi. xxiv. figs. 17, 18. 
1843. Jlyhodus lonyiconus, L. Agassiz, tom. cit. pi. xxiv. fig. 22. 
1844. Jlyhodus rugosus, T. Plieninger in II. von Meyer & T. Plieninger’s 
Beitr. Pal. IViirtteiuhergs, pp. 50, 117, pi. xii. figs. 52, 59. 
1849. Jlyhodus mougeoti and JI. pUcatilis, II. von Meyer, Palaeontogr. 
vol. i. p. 220, pi. xxviii. figs. 40-48. 
1852. Jlyhodus rugosus, F. A. Quenstedt, Handb. Petrefakt. p. 177, 
pi. xiii. fig. 29. 
1805. Jlyhodus polyeyphus, II. Eck, Form. bunt. Sandst. u. Muschelk. 
Obcrschlesicn, p. 119. 
Type. Detached teeth. 
Teeth very thick and robust, with a moderately elevated crown. 
Coronal surface mostly smooth, with rugose markings extending 
downwards from the summit of the principal cone, and also from 
the summit of the stout lateral denticles. 
Fonn. 4' Loc. Muschelkalk and Lettenkohl : E. France, Wiirtem. 
berg, Saxony, and Silesia. 
28476. Three broken teeth ; Bone-hed, Crailsheim. 
Purchased, 1853. 
P. 2189. Imperfect tooth ; Crailsheim. Egerton Coll. 
P. 2790. Similar specimen ; Crailsheim. Ennisl-Ulen Coll- 
28481. Tooth; Halle, Saxony, Purchased, 1853. 
Hybodus cuspidatus, Agassiz. 
1843. Jlyhodus cuspidaius, L. Agassiz, Poiss. Foss. vol. iii. p. 194, 
pi. xxii. a. figs. 6-7. 
1844. Jlyhodus euspidatus, II. von Meyer & T. Plieninger, Beitr. Pal. 
WUrttenibergs, p. 113, pi. xii. figs. 57, 01, 62. 
1882. Jlyhodus robustus, F. A. Quenstedt, Handb. Petrefakt. 3rd edit, 
p. 277, pi. xxi. fig. 31. 
Type. Detached teeth. 
Teeth with a relatively high conical crown, strongly marked by 
vertical superficial wrinkles. Lateral denticles robust and conical. 
Form. 4' Loc- Upper Muschelkalk and Keuper: Wurtemberg. 
28465. Imperfect tooth ; Ludwigsburg. PurcJiased, 1853. 
19691. Tooth fragment; 'Wurtemherg. Purchased, 1845. 
