EXPLANATION OF PLATES. 



PLATE 1. 



(All figures are of the natural size.) 

 . 1-4. Careharifis (Frionodon) sp. ind., Station 2. All of these specimens are seen 



from the inner or convex face ; the original of Fig. 1 is an anterior lower 

 tooth, and the remainder are postero-lateral teeth referable to the upper 

 dentition. 

 5, 6. Carcharias {Frionodon) sp. ind., Station 13. Inner face of an anterior and 

 an antero-lateral tooth of a small species possibly distinct from that illus- 

 trated in Figs. 1-4. 

 7, 8. Hemipristh sp. ind., Station 2. Inner face of two much decomposed crowns. 

 9, 10. Lamna sp. ind., Station 2. Two anterior teeth of a small species seen in 

 profile and from the inner or posterior aspect. 

 Oxyrhhia crassa Ag., Station 2. Inner face of a small anterior tooth. 

 Oxi/r/iinii crassa Ag., Station 2. Inner face of two large anterior teeth. 

 Oxijrliuia crassa. Ag., Station 2. Average-sized examples of the postero- 

 lateral dentition. 



19. Oxt/rhina crassa Ag., Station 13. Inner face of a large specimen belonging 



to the lateral series. 



20. Oxi/rhina crassa Ag., Station 2. A rather heavily encrusted lateral tooth 



corresponding in size to the anterior teeth shown in Figs. 12 and 13. 

 Carcharodon megalodon Ag., Station 2. Rather lightly encrusted lateral teeth. 

 Supposed Cetacean incus from Station 2 ; also shown in Fl. 2, fig. 30. 



PLATE 2. 



(All figures are of the natural .size.) 

 25. Right petrous bone of Globicephalus (?). Station 2. 



2G. Left tympanic and petrous bones still retained in natural association and 



apparently referable to Glohiceplialus. Station 13. 



27. Left tympano-pteriotic of Glohiceplialus (?). Station 2. 



28. Left petrous bone of a Ziphioid whale. Station 2. 



29. Left tympano-pteriotic of a Ziphioid whale. Station 13. 



30. Supposed Cetacean incus, also shown in PI. 1, fig. 24. Station 2. 



31. Carcharodon viet/alodon, Ag., Station 17.3. A comparatively large-sized and 



very heavily encrusted specimen. 



32. Carcharodon mcyalodon Ag., Station 173. A lateral tooth having a moder- 



ately thin coating of manganese on the outer face, and a very tliick deposit 

 on the inner, which presumably lay uppermost. 



33. Carcharodon megalodon Ag., Station 173. A lateral tooth evidently buried 



in reverse position to that shown in the j)recediug figure. 



PLATE 3. 



Track of the " Albatross " from San Francisco to Yokohama. 

 191 



