OETACEA. 73 



MESOPLODON TENUIKOSTEIS, OWEN. 



The rostrum named Ziphius tenuirostris by Sir R. Owen (Pal, 

 Soc., 1870, p. 24) was obtained from the Red Crag Nodule-bed of 

 Suffolk, and is preserved in ihe British Museum (Lydekker, Quart. 

 Journ. Geol. Soc., Vol. XLIIL, p. 15, 1887, and Cat. Foss. Mamm. 

 Part v, p. 71, 1887). Prof. Capellini (Mem. Ac. Sci. Insl. 

 Bologna, Ser. 4, Vol. VL, p. 296, 1885), has recognised it in the 

 Pliocene near Orciano in Italy. 



MESOPLODON GIBBUS, OWEN. 



This species like the last was established by Sir R. Owen (Pal. 

 Soc. 1870, p. 17, 1870) for a ziphioid rostrum from the Nodule- 

 bed of the Red Crag of Suffolk, which is now in the British 

 Museum (Cat. Foss. Mamm., Part v, p. 72, 1887). The species 

 has been likewise recognised by Prof. Capellini in the Pliocene 

 of Serastretta, Italy. 



MESOPLODON ANGUSTUS, OWEN. 



Another form of ziphioid rostrum from the Nodule-bed of the 

 Red Crag of Suffolk was thus named by Sir R. Owen (Pal. Soc., 

 1870, p. 19.) It has not hitherto been recognised elsewhere. 

 The type is in the British Museum (Cat. Foss. Mamm., Part v, 



p. 72, 1887). 



MESOPLODON ANGULATUS, OWEN. 



This also is one of the species established by Sir II. Owen 

 (Pal. Soc., 1870, p. 20) for a ziphioid rostrum from the Nodule-bed 

 of the Red Crag of Suffolk and the specimen is preserved in the 

 British Museum (Cat. Foss. Mamm., Part v, p. 73, 1887). 



A rostrum from the Antwerp Crag has, with some doubt, been 

 referred to this species by Profs. Van Beneden and Gervais 

 (Oste'ogr. Cetaces, p. 422, 1880). 



MESOPLODON COMPKESSUS, HUXLEY. 



Prof. Huxley (Quart. Journ. Geol. Soc., Vol. XX., p. 388, 1864) 

 described a rostrum from the Red Crag (Nodule-bed) of Blackheath, 

 near Ipswich, under the name of Belemnoziphius compressus ; and 

 the specimen is preserved in the Museum of Practical Geology. 

 Sir R. Owen afterwards (Pal. Soc. 1870, p. 25) described another 

 rostrum from the Red Crag of Suffolk, which is now in the 



