252 
8ELACHII. 
P. 2179, P. 2180, P. 2191. Six teeth, three being of the form of 
H. longiconus, and showing lateral denticles; Bayreuth. 
Eger ton Coll. 
P. 2770, P. 2770 a. Three teeth, and one large tooth either of this 
species or H. mougeoti ; Brunswick. Enniskillen Coll. 
Hybodus mougeoti, Agassiz. 
_ 1 843. Hybodus mouge oti , L. Agassiz, Poiss. Foss. vol. iii. p. 190, pi. xxiv. 
figs;7 ^87TT7T23 l6. 
1843. Hybodus obliquus, L. Agassiz, tom. cit. p, 192, pi. xxiv. figs. 3-6 
(non figs. 1, 2). 
1844. Hybodus obliquus , H. von Meyer & T. Plieninger, Beitr. Pal. 
Wiirttembergs, p. 56, pi. xii. fig. 58. 
1844. Hybodus (obliquus , Ag. P) aduncus, Plieninger, in H. von Meyer & 
T. Plieninger, op. cit. p. 112, pi. xii. figs. 55, 88. 
(P) 1844. Hybodus acluncus , Plieninger, in H. von Meyer & T. Plieninger, 
op. cit. p. 112, pi. xii. figsr 26, 35, 80^ t : 
1852. Hybodus plicatilis , P. Gervais, Zool. et Pal. FranQ. Explic. Pi. 
Poiss. Foss. p. 12, pi. lxxvii. figs. 1, 2, 4 (non fig. 3). 
1856. Hybodus mougeoti , C. Giebel, Zeitschr. gesammt. Naturw. vol. viii. 
p. 426, pi. i. fig. 7. 
1861. Hybodus plicatilis , E. E. Schmid, Nova Acta Acad. Cses. Leop.- 
Car. vol. xxix. no. 9, p. 19, pi. iii. figs. 1-6. 
1865. Hybodus mougeoti , H. Eck, Form. bunt. Sandst. u. Musckelk. 
Oberschlesien, p. 118. 
1883. Hybodus mougeoti, H. E. Sauvage, Bull. Soc. Geol. France, [3] 
vol. xi. p. 495, pi. xii. fig. 12. 
Type. Detached teeth. 
Teeth very robust, with a relatively high crown, strongly marked 
by numerous vertical superficial wrinkles. Lateral denticles small, 
robust, sometimes absent. 
Some of the teeth referred to this species do not differ much from 
those of H.plicatilis, but we follow Sauvage in regarding it as distinct. 
Form. Sf Log. Muschelkalk and Lettenkohl: Bavaria, Wiirtemberg, 
Hanover, and Eastern France. 
1534-5. T wo small teeth, and one larger; Bayreuth, Bavaria. 
Braun Coll. 
19684. Large tooth, with worn or abraded principal cone; Bayreuth. 
Purchased , 1845. 
P. 2180 a. Typical tooth; Bayreuth. Egerton Coll. 
P. 2782. Tooth, with worn or abraded principal cone; Hildesheim, 
Hanover. Enniskillen Coll. 
