PYCXODOXTIDJE. 
209 
P. 5102. More nearly complete specimen : Lindnerberg. 
Presented by J. E. Lee, Esq., 1885. 
28506. Portion of left splenial dentition; Coral Rag, Schnaitheim, 
Wiirtemberg. Purchased, 1847. 
40638. Right splenial bone with much-worn teeth, doubtfully 
assigned to this species; Coral Rag, Weymouth. 
Purchased , 1867. 
P. 3786 d. Small right splenial closely resembling the specimen 
figured by Pricke, Joe. cit. pi. xix. fig. 3; Kimmeridge 
Clay, Weymouth. Enniskillen Coll. 
P. 6748. Abraded portion of similar left splenial; Kimmeridge 
Clay, Weymouth. Purchased , 1892. 
P. 3741. Portion of small right splenial dentition; probably from 
the Coral Rag of Wevmouth. Enniskillen Coll . 
O v 
Mesodcn nicoleti (Agassiz). 
1844. Pycnodus nicoleti, L Agassiz, Poiss. Foss. vol. ii. pt. ii. p. 192, 
pi. lxxi. fig. 14. 
1860. Pycnodus nicoleti, F. J. Pictet, Rept. & Poiss. Foss. Jura Neu- 
chatelois, p. 55, pi. xiii. figs. 1-3. 
1879. Pycnodus nicoleti, H. E. Sauvage, Bull. Soc. Sci. Nat. Ahmne, 
vol. xxxiii. pt. ii. p. 33, pi. ii. fig. 6. 
Type. Imperfect splenial dentition. 
A large species, known only by the dentition of the lower jaw, 
which appears to differ from that of M. granulatus merely in the 
greater length of the principal teeth as compared with their breadth. 
Future discoveries must determine whether the two supposed species 
are truly distinct. 
None of the specimens in the Collection show more than one 
inner series and three outer series of small teeth on the splenial 
bone. 
Form. S)' Loc. Kimmeridgian: Switzerland: Yonne, France, 
(?) Portlandian: Germany. 
P. 1644. Imperfect left splenial dentition, much worn ; Soleure. 
Egerton Coll. 
P. 3740. Two similar specimens; Soleure. Enniskillen Coll. 
P. 5292. Portion of left splenial dentition, showing the rugosity on 
one of the principal teeth ; Soleure. 
Presented by Her Grace the Duchess of St. Albans , 1876. 
PART III. 
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