SYSTEMATIC INDEX. XI 



PAG* 



II. HYPEROODON, Lacep. ,., 276 



I. rostratus (Mull.) ... 276 



III. MESOPLODON, Gerv. 279 



I. bidens (Sowerby) ... 279 



IV. ZIPHIUS, Cuv. 282 



I. cavirostris, Cuv. ... ... 282 



FAMILY DELPHINID^E ' 282 



I. MONODON, L 283 



I. monoceros, L. ... ... ... ... ... 283 



II. DELPHINAPTERUS, Lacep 284 



I. leucas (Pall.) 284 



III. PHOC^NA, Cuv 285 



I. communis, Less. 286 



IV. ORCA, Gray 287 



I. gladiator (Bonn.) 287 



V. GLOBICEPHALUS, Less. ,. 289 



I. melas (Traill.) 289 



VI. GRAMPUS, Gray 290 



i. griseus (Cuv.) ... ... ... ... ... 291 



VII. LAGENORHYNCHUS, Gray 292 



1. albirostris (Gray) ... ... ... ... ... ... 293 



2. acutus (Gray) ... ... ... ... ... 294 



VIII. DELPHINUS, L 295 



I. delphis, L. ... ... ... ... ... 296 



IX. TURSIOPS, Gerv 296 



I. tursio (Bonn.) ... ... ... ... ... ... ... 297 



THE ANCIENT MAMMALS OF BRITAIN ... 298 



I. The CAVERN and BRICK-EARTH PERIOD 298 



II. The FOREST-BED and CRAG PERIODS 308 



III. The LOWER TERTIARY PERIOD 319 



