THE DEPTH AND MARINE DEPOSITS OF THE PACIFIC OCEAN. 39 



otic of Kogia or some very similar form, and 1 indeterminate long and 

 slender bone. Most of these remains are but slightly encrusted with 

 manganese. 



" Station 4658, depth 2370 fathoms. Four teeth of Oxyrhina, 9 Lamna, 2 

 nondescript fragments ; also 1 delphinoid tympanic. Manganese coating 

 very slight. 



" Station 4666, depth 2600 fathoms. No fish remains ; 4 excellently pre- 

 served ear-bones of Hyperoodon, one having the tympanic still fused with the 

 periotic ; also 1 heavily encrusted delphinoid tympanic, and several corroded 

 osseous fragments. 



" Station 4676, depth 2714 fathoms. No fish remains ; 3 rather heavily 

 encrusted ear-bones of Hyperoodon, . . . and 1 unrecognizable fragment. 



" Station 4685, depth 2205 fathoms. This station, which lies within the 

 barren area, is remarkable for having furnished a larger number of vertebrate 

 remains than any other during the cruise, and with them were brought up 

 li tons of manganese nodules. There are in all 73 sharks' teeth, 5 of 

 which belong to Carcharodon; the rest to Lamna and Oxyrhina. Some of 

 the teeth, are embedded in nodular masses ; none have the crowns heavily 

 encrusted, but the majority have dark-brown clay adhering to them. 

 Cetaceans are represented by 5 delphinoid ear-bones ; the tympano-periotic 

 of one individual consists of a single piece. 



" Station 4693, depth 1142 fathoms. According to the published record 

 of ' Albatross ' dredging stations, in the General Report of the Expedition^ 

 sharks' teeth and cetacean bones came up in the trawl at this locality. 

 None such are contained, however, in the collection submitted for examina- 

 tion, the only specimen marked with this station number being a well 

 preserved tergum of Lepas. 



" Station 4695, depth 2020 fathoms. The vertebrate remains dredged 

 at this point are confined to 2 small and tolerably fresh-looking Oxyrhina 

 teeth. 



" Station 4701, depth 2265 fathoms. Eight sharks' teeth, including 1 large 

 and beautifully preserved Carcharodon, wholly unencrusted, also 1 large and 

 6 smaller Oxyrhina teeth, very lightly coated ; 2 delphinoid ear-bones, like- 

 wise with very little coating. 



"Station 4709, depth 2035 fathoms. Two small fresh-looking Lamna 

 teeth ; 2 heavily encrusted ear-bones of Hyperoodon, 1 indeterminate 



I Mem. Mus. Comp. Zobl, Vol. XXX., p. 44, 1906. 



