ICHTHYODORTJLITES. 
117 
BvfrVlOv U'aJ^La'S j Tly ft} 76 , i/-zrl>. 
Nemacanthus brevis, Phillips. ffh. 
^843. Nemcicanthus brevispinus, L. Agassiz, Poiss. Foss. vol. iii. p. 17? • av ^4<ifb/'<) 
(name only). 
1871. Nemcicanthus brevis, J. Phillips, Geol. Oxford, p. 178, diagr. 
xxxviii. figs. 3 -5. 
1890. Nemacanthus brevis, A. S. Woodward, Proc. Geol. Assoc. yoI. xi. 
p. 289, pi. iii. fig. 1. i . 
I ‘jib lxN\ o<^UvtW-T kuA/i S [rbu ntfs), Z, 33 
Type. Oxford Museum. 
Form . Sf Log. Bathonian (Stonesfield Slate): Stonesfield, Oxford¬ 
shire. 
P. 2218. Two specimens, one figured by the present writer, Joe. cit. 
pi. iii. fig. 1. Egerton Coll . 
P. 2851. Two specimens. 
Enniskillen Coll . 
The following species have also been determined : — 
Nemcicanthus granulosus , Miinster, in L. Agassiz, Poiss. Foss. 
yoI. iii. (1843), p. 177 (name only) ; (?) F. von Alberti, 
Ueberblick liber die Trias (1864), p. 208, pi. vii. fig. 9.— 
Muschelkalk; Laineck, Bavaria. 
Nemcicanthus minor , J. W. Davis, Quart. Journ. Geol. Soc. vol. 
xxxvii. (1881), p. 419, pi. xxii. fig. 5. — Rhsetic; Wainlode 
Cliff, Gloucestershire. [Mus. Geol. Soc. London.] 
Nemcicanthus sentionis , Munster, in Agassiz, Poiss. Foss. vol. iii. 
(1843), p. 177 (name only). Quoted as N. senticosus by 
C. G. Giebel, Fauna der Yorwelt, vol. i. (1848), Fische, 
p. 304. —Muschelkalk ; Laineck, Bavaria. 
Nemcicanthus tuberculcitus, F. Bassani, Atti Soc. Ital. Sci. Nat. 
vol. xxix. (1886), p. 30.—Upper Trias; Besano, Lom¬ 
bardy. 
The following spine may also be referable to this group of 
Ichthyodorulites:— 
Psilciccinthus aalensis , F. A. Quenstedt, Der Jura (1858), p. 347, 
pi. xlvii. fig. 20.—Brown Jura /3 ; Aalen, Wiirtemberg. 
[Tubingen University Museum.] 
