574 
ACTINOPTERTGII. 
A small species known only by the jaw. klarginal dental plates 
in contact, forming continuous series. About 10 superposed plates 
in complete inner pile.. ^ ^ ^ 
jPorm. Aoc. Tertiary f^noiplEle Beds: South Carolina. Miocene: 
l^orth Carolina. 
P. 8607. Portion of inner dental plates; Phosphate Beds, South 
Carolina. Slatter Coll. 
The following specimens referable to Dioclon are not specifically 
determined:— 
38819. Imperfect fish about 0*12 in length, with spines fewer and 
larger than in D. erinaceus ; Upper Miocene, Oran, 
Algeria. Purcluisedy 1853. 
P. 1910-11. Imperfect inner dental plates ; Eocene, Clark Co., 
Alabama, U.S.A. Egerton Coll. 
P. 4792. Base of very large inner pile of dental plates, which are 
less broad in proportion to length than those of B. scillce ; 
Miocene, Malta. 
Presented hg Sir Richard Owen, K.C.B., 1884. 
The following extinct species have also been described on imperfect 
evidence, but are not represented in the Collection: — 
^iodon acanthodes, H. E. Sauvage, Ann. Sci. Nat. [5] vol. xiv. 
O (1870), art. no. 7, p. 4, and Ann. Sci. Geol. vol. iv. (1873), 
P* ^^5 70-72.—Upper Miocene; Licata, 
Cl o 1**^ *'*‘ Sicily. [Imperfect fish, including jaws.] 
:^o corsicanus, A. Portis, Boll. B. Comit. Geol. Ital. vol. xx. 
(1889), p. 379. Phyllodiis corsicanus, A. Locard, Eaune 
Terr. Tert. Moy. Corse (1877), p. 11, pi. i. figs. 1, 2.— 
Miocene; Corsica. [Dental plates.] 
Dioclon foleyi, E. Lydekker, Eec. Geol. Surv. India, vol. xiii. 
(1880), p. 60, and Paleeont. Ind. ser. x. vol. iii. (1886), 
p. 257, pi. XXXV. fig. 10.—Eocene ; Isle of Eamri, Arakan, 
India. [Dental plates]. 
Dioclon gigantodus, A. Portis, loc. cit. 1889, p. 358, pi. x. figs. 1,2. 
—Upper Eocene ; Castel Madama, near Tivoli. Cental 
plates ; University of Borne.] 
Dioclon heptadiodon, A. Portis, loc. cit. 1889, p. 364. Enneodon 
echinus, J. J. Heckel, Sitzungsb. k. Akad. Wiss., math.- 
naturw. Cl. vol. xi. (1854), p. 127, and Denkschr. k. 
Akad. Wiss., math.-naturw. Cl. vol. xix. (1861), p. 76, 
