PLATE IX. 
1. Cladocychiii gardnevi, Agassiz; scales, outer aspect.— 
Upper Cretaceous ; Ceara, Brazil. [28901 1).] 109 
2. Cladocyclus letuesiensis^ Agassiz ; scale, outer aspect.— 
Chalk; Sussex. [25861.] HO 
3. Ditto ; scale, outer aspect.—Lower Chalk; Burham. 
[41712.] 110 
4. Iclitliyodectes elegans^ Newton ; left maxilla, outer aspect. 
Lower Chalk ; Upper Hailing. [P. 5645.] 103 
5. Ditto: left dentary, inner aspect, found with preceding 
specimen. [P. 5644.] 103 
6. Iclitliyodectes tenuidens^ sp. nov. ; head, right lateral 
aspect.—Lower Chalk ; Burham. d. Dentary. mx. 
Maxilla, p.op. Preoperculum. Prefrontal (ect- 
ethmoid). s.o. Suhorbital, scl. Sclerotic. [49054.] 104 
