364 BRITISH FOSSIL VERTEBRATA. 
MESOPLOLON (continued)— 
tenuirostris (Owen), R. Lydekker, Cat. Foss). Mamm. B. M., 
pt. v, 1887, p. 71. 
Ziphius tenutrostris, R. Owen, Crag Cetacea (Pal. Soc., 1870), 
Pp: 24,.pl. V5. fs 1,2: 
Dioplodon tenuirostris, Van Beneden and P. Gervais, Ostéo- 
graphie des Cétacés (? 1872), p. 422; G. Capellini, Mem. 
R. Accad. Sci. Istit. Bologna [4] vol. vi, 1885, p. 296. 
Loc. Red Crag ; Felixstowe. [Rostrum ; Brit. Mus.] 
MICROCHGRUS, S. V. Wood, Ann. Mag. Nat. Hist., vol. xiv, 
1844, p. 350. 
erinaceus, S. V. Wood, zézd@., p. 350, and London Geol. Journ., 
no. 1;°1846,.po 5, pleii, f: 1=3); J. Motris;CatSrit. Foss., 
1854, p. 360; R. Lydekker, Quart. Journ. Geol. Soc., vol. xli, 
1885, p. 529, woodcut, and Cat. Foss. Maimm. B. M., pt. v, 
1887, p. 303, woodcut 45. 
Loc. U. Eocene ; Hordwell. [Portions of skull and mandible ; 
Brit. Mus. ] Es 
MICROLESTES, T. Plieninger, Witt. Jahresh., vol. iii, 1847, p. 164. 
HYPSIPRYMNOPsSIS, W. B. Dawkins, Quart. Journ. Geol. Soc., 
vol. xx, 1864, p. 406. 
moorei, R. Owen, Brit. Mesoz. Mamm. (Pal. Soc., 1871), p. 6, 
pl. i, f. 1-13; R. Lydekker, Cat. Foss. Mamm. B. M., pt. v, 
1871, p. 203. 
Loc. Rheetic Fissure; Frome. [Teeth ; Bath Mus.] 
rheeticus (Dawkins), R. Owen, Brit. Mesoz. Mamm. (Pal. Soc., 
107 1). Pro plist, 4-16: 
fHypsiprymnopsis rheticus, W. B. Dawkins, Quart. Journ. Geol. 
Soc., vol. xx, 1864, p. 411, woodcut 3. ‘XL. (Hyvpsiprymnopsis.) 
Loc. Rhietic ; Watchet, Somersetshire. [Tooth; Oxford Mus.] 
MICROTUS, F.and P. Schrank, Fauna Boica, vol. 1, 1798, p. 72. 
ARVICOLA, De Lacépéde (? 1799), Mém. de I’Institut, vol. iii, 
1801, p. 490. 
agrestis (Linneus), F. Lataste, Le Naturaliste, 1883, p. 349, 
and Actes Soc. Linn. Bordeaux, vol. xxxvili, 1884, p. 36. 
Arvicola agrestis, R. Owen, Brit. Foss. Mamm., 1846, p. 206, 
woodcut 77; J. Morris, Cat. Brit. Foss., 1854;.p. 357 ; 
W. A. Sanford, Quart. Journ. Geol. Soc., vol. xxvi, 1870, 
p- 124; H. P. Blackmore and E. R. Alston, Proc. Zool. 
Soc., 1874, p. 467 ; R. Lydekker, Cat. Foss. Mamm. B. M., 
pt. i, 1885, p. 232. [See also ALtcrotus arvalis.] 
[Mus agrestis, Linnzeus, Fauna Suecica, ed. alt., 1761, p. 11]. 
Mus gregarius, Linnzeus, Syst. Nat., ed. 12, vol. i, 1766, p. 34. 
? “Water rat,’ W. Buckland, Phil. Trans., 1822, p. 182, pl. xxv, 
f. 11, and Relig. Diluv., 1824, p. 18, pl. xi, f. 11. 
Loc. Pleist.; Crayford and Grays. 
Caves ; near Bath Kent’s Hole, and Kirkdale. 
