A.CIPEXS ERIDJE . 
45 
ornament has the appearance of not overlapping the 
superior margin ; and there is a feeble superficial ridge 
extending downwards and backwards from the flexure of 
the bone, as in the existing species of Acipenser. 
Purchased, 1873. 
The following remains indistinguishable from Acipenser are also 
preserved in the Collection : — 
P. 5283. Pine lateral scute, noticed and figured in Proc. Geol. Assoc. 
vol. xi. 1889, p. 28, pi. i. fig. 2; Lower Hempstead Beds, 
Hempstead, Isle of Wight. 
Presented by the Poyad Society, 1887. 
P. 6475. Two portions of scutes and another fragment; probably 
from the Hempstead Beds. Beckles Coll. 
41892. Two portions of pectoral spines ; Upper Eocene, Hordwell, 
Hampshire. Purchased , 1870. 
P. 1533, P. 1533 a. Two imperfect pectoral spines and rolled frag¬ 
ments of two others, part of the ornament of one figured, 
loc. cit. pi. i. fig. 3 b; probably from the Hempstead Beds. 
Egerton Coll. 
P. 4946. Pectoral spine wanting distal extremity, resembling the 
York specimen figured, loc. cit. pi. i. figs. 3, 3 a ; Hemp¬ 
stead Beds. Presented by John Edward Lee , Esq., 1885. 
The following remains indistinguishable from Acipenser have 
also been described:— 
Acipenser ornatus, J. Leidy, Proc. Acad. Yat. Sci. Philad. 1873, 
p. 15, and Extinct Yert. West. Territ. (Bep. U.S. Geol. 
Surv. Territ.), vol. i. pt. i. 1873, p. 350, pi. xxxii. fig. 58. 
—Miocene; Yirginia. [Scute.] 
Acipenser sp., E. T. Yewton, Yert. Eorest Bed (Hem. Geol. 
Surv. 1882), p. 129, pi. xix. fig. 6 : and Yert. Pliocene 
Hep. Britain (ibid. 1891), p. 100.—Eorest Bed Series; 
Yorfolk. [Cephalic plate ; Museum of Practical Geologv, 
London.] 
Acipenser sp., A. S. Woodward, Proc. Geol. Assoc, vol. xi. (1889), 
p. 28; Premier rayon de la dorsale cVun Poisson, ay ant 
quelque rapport avec celui cles Balistes, P. Gervais, Zool. 
et Pal. Franc*. (1852), Explic. Planches, Poiss. Eoss. p. 5, 
pi. lxviii. fig. 33.—Lower Pliocene ; Montpellier, France. 
[Pectoral fin-spine.] 
