PLATE I. 
Fig, , Page 
1. BrycJicBtus muelleri, sp. nov.; liead, left lateral aud 
superior (1 a) aspects, one third nat. size.—London 
Clay; Sheppey. d. Dentary. fi\ Frontal. mcc. 
Maxilla. orh. Orbit. pa. Parietal, pmx. Pre¬ 
maxilla. s.mx. Supramaxilla. s.o.l., 5.0.2. Post¬ 
orbitals. 16. Scale. [P.3893.] 77 
2. Ditto ; bead, right lateral and superior (2 a) aspects, one 
third nat. size.—Ibid. op. Operculum, p.op. Pre¬ 
operculum. pet. Pectoral fin. sp Squamosal. Other 
letters as above. 2 6. Premaxillary tooth. 
[P. 157.] 78 
3. Ditto ; right mandibular ramus, one third nat. size.— 
Ibid. [43020.] 79 
4. Ditto; right premaxilla, outer and oral (4 a) aspects, 
one half nat. size,—Ibid, [43021.] 80 
\ 
