PLATE IX. 
Fig. 
1. Clndocyclus gardneri, Agassiz; scales, outer aspect.- 
Upper Cretaceous ; Ceara, Brazil. [28901 b.] 
Cladocyclus lewexiensis, Agassiz ; scale, outer aspect. 
Chalk; Sussex. [25861-] 
«L Ditto ; scale, outer aspect. — Lower Chalk ; Durham. 
[41712.] 
4. Ichthyodectes elegant, Newton ; left maxilla, outer aspect. 
Lower Chalk ; Upper Hailing. [P. 5645.] 
•>. Ditto ; left dentary, inner aspect, found with preceding 
specimen. | P. 5644. J 
0. Tchthyodeetes tenuidens, sp. nov. ; head, right lateral 
aspect. — Lower Chalk ; Durham, d. Dentary. mx* 
M axilla, p.op. Preoperculum, pr.f. Prefrontal (ect- 
ethinoid). s.o. Suhorhital. tel. Sclerotic. 1 49054. | 
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