146 
ACTINOPTERYGII. 
Diplomystus vectensis (Newton). 
1889. Clupea vectensis, E. T. Newton, Quart. Journ. Geol. 
vol. xlv. p. 112, pi. i v . . j T j. 
1889. Diplomystus vectensis, A. S. Woodward, Geol. Mag- PJ v 
p. 230. 
Type. Imperfect fish ; G. W. Colenutt Collection, Ryde- ^ 
A small species, attaining a length of about 0*06, the 
region comparatively slender. Length of head with °P £ 
apparatus slightly less than the maximum depth of the tru' 1 ^ 
contained about four and a half times in the total length ot ^ 
to the base of the caudal fin. Abdominal vertebrae r 
caudals 15 in number. Dorsal fin deeper than long, with g _ 
rays; anal fin comparatively low and extended, with 16 or 1 
Dorsal scutes narrow ; ventral ridge-scales 20 to 22 in nU 
not serrated, decreasing in size backwards. , j B le 
Form. Sf Loc. Lower Oligoccne (Osborne Beds) : near } ’ 
of Wight. 
P. 5930. Very small specimen ; King’s Quay, near Ryde. jgg9. 
Presented by G. W. Colenutt, *2 > ^ 
P. 6853, -54. Small slab displaying small individuals, and 
other specimens ; King’s Quay. _ jg93. 
Presented by G. F. Harris, SC L ’ 
The imperfect specimens named as follows from tb° 
Cretaceous of Pietraroja, Province of Benevento, Italy , a 8 
to Diplomystus : a85 0), 
Histiurus elatus, O. G. Costa, Atti Accad. Pontan. vol. • t 
p. 289, pi. vi. fig. 3, and ibid. vol. vii. (1853), P- ’ 
2. 00 
Histiurus serioloides, O. G. Costa, ibid. vol. viii. (1864), 1 
pi. ix. fig. 3. jjapoli, 
Histiurus ventricosus, 0. G. Costa, Atti R. Accad. ® c • 
vol. ii. no. 21 (1865), p. 5, pi. ii. figs- 3-5. ^ 
The original specimens are in the Geological Museum, 
of Naples. 
Genus CLUPEA (Artedi), Linnmus. 
[Syst. Nat. ed. 10, 1758, p. 317.] 
Syn. Alosa, Q. Cuvier, Rfigne Animal, ed. 2, vol. ii- 18 ' 9 ’ ?' xX . 1847, 
Meletta, Cuvier & Valenciennes, Hist. Nat. Poiss. ' 
P-366. - i865,P- 413- 
Uropterina, P. Lioy, Atti Soc. Ital. Sci. Nat. vol. vim 
Ptericephalina, P. Lioy, ibid. p. 414. 
