68 MAMMALIA. 



Genus PHYSODON, Gervais. 



(PAUEODELPHIS, Du Bus.) 



PHYSODON GRANDIS ? DU BUS. 



This name was proposed by M. Du Bus (Bull. Ac. Roy. Belg., 

 Ser. 2, Vol. XXXIV. p. 503, 1872) for certain teeth from the 

 Antwerp Crag, which were afterwards figured by Profs. Van 

 Beneden and Gervais (Osteogr. Cetaces, p. 336, PL xx. f. 21, 

 1880). 



Specimens from the Red Crag Nodule-bed of Suffolk have been 

 referred to this species by Mr. Lydekker (Quart. Journ. Geol. 

 Soc., Vol. XLIIL, p. 14, 1887, and Cat. Foss. Mamm. Brit. Mus., 

 Part v, p. 59, 1887). 



PHYSODON FUSIFOKMIS? DU BUS. 



This species like the last was named by M. Du Bus (loc. cit.) 

 and figured by Profs. Van Beneden and Gervais (loc. cit, Plate xx., 

 f. 19, 20). To it Mr. Lydekker refers a tooth in the British 

 Museum from the Red Crag Nodule-bed of Woodbridge (Cat. 

 Foss, Mamm., p. 60, 1887). 



Genus HOPLOCETUS, Gervais. 



HOPLOCETUS CRASSIDENS ? GERVAIS. 



Two teeth from the Faluns de Romans (Drome) [Miocene] 

 received the name of H. crassidcns from M. Gervais (Zool. Pal. 

 Fr. edit. 1, p. 161, Plate xx., figs. 10, 11, 1848-52), and Sir R. 

 Owen (Quart. Journ. Geol. Soc., Vol. XII., p. 228, 1856) noticed 

 teeth from the Red Crag of Suffolk " corresponding in size and 

 form to the singular teeth " thus named. This form of tooth is, 

 figured by Profs. Van Beneden and Gervais (Osteogr. Cetaces, 

 Plate xx., f. 26, 27, 1880) and Mr. Lydekker is of opinion 

 that certain teeth from the Red Crag Nodule-bed of Suffolk 

 may be referred to the same species (Quart. Journ. Geol. Soc. 

 Vol. XLIII., p. 14, 1887). 



HOPLOCETUS BORGEBHOUTENSIS ? DU BUS. 



This name was given by Du Bus (Bull. Ac. Roy. Belg., Ser. 3, 

 VoL XXXIV., p. 502, 1872) to a series of six teeth from the 

 Belgian Crag; and a tooth is figured by Profs. Van Beneden and 

 Gervais (Osteogr. Cetaces, PI. xx., f. 28). Certain teeth from the 



