520 
actixoptebygii. 
(1891), p. 050. — Lower Tertiary (?) ; I tee Hills, South 
Dakota, U.S.A. [Imperfect fish.] 
] achygaster polyspondylus, C. G. Giebel, Fauna der Vorw., Fische 
(1848), p. 22. — Oligocene ; Canton Glarus, Switzerland. 
[Distorted fish.] 
?J achygaster spinosus , C. G. Giebel, Neucs Jahrb. 1847, p. 667, 
and op. cit. p. 22. — Ibid. [Type species. Ditto.] 
1 aralales bleicheri, 11. E. Sauvnge, Bull. Soc. Geol. France [3] 
vol. xi. (1883), p. 485, pi. xi. figs. 1, 2. — Oligocene ; 
Rouffach, Alsace. [Imperfect fish.] 
Paraperca provincial is, II. E. Sauvage, loc. cit. [3] vol. iii. (1875), 
p. 639, pi. xxiii. fig. 2. — Lower Oligocene; Aix-en- 
Provence. [Imperfect fish, perhaps Cottoid ; Paris 
Museum of Natural History.] 
Perea ( Sandroserrus ) reboulii, P. Gorvais, Zool. et Pal. Franc. 
(1852), Poiss. Foss. p. 8, pi. lxxiii. fig. 1. — Pliocene ; 
Pezenas, Herault. [Imperfect fish ; University of Mont- 
pellier.] 
Platylates rupeliensis, It. Storms, Bull. Soc. Beige Geol. vol. >■ 
(1887), Mem. p. Ill, pi. vi. — Middlo Oligocene (Kupe- 
lian) ; Rumpst, near Boom, Antwerp. [Imperfect trunk ; 
Brussels Museum.] 
Plioplarchiu septemspinosus, E. D. Cope, Amer. Nat. vol. xxiii. 
(1889), p. 620. — Tertiary ; John Day ltivcr, Oregon. 
[Imperfect fish.] 
Plioplarchus sexspinosus, E. D. Cope, Amor. Journ. Sci. [3] 
vol. xxv. (1883), p. 416, and Yert. Tert. Form. West, 
Book I. (Rep. U.S. Geol. Surv. Territ. vol. iii- 1884), 
p. 729. — Tertiary ; W. Dakota. [Imperfect trunk.] 
Plioplarchus white i, E.D. Cope, loc. cit. 1883, p. 414, and op. cit- 
1884, p. 728, pi. xxiv o. fig. 1.— Ibid. [The type species. 
Imperfect fish.] 
Podocys minutus, L. Agassiz, Poiss. Foss. vol. iv. (1838-39), 
pp. 5, 135, pi. xvi. fig. 5; A. Wettstein, Fischfauna 
lertiaer. Glarnerschief. (Denkschr. schwciz. Palaeont. 
Ges. vol. xiii. 1886), p. 69, pi. viii. fig. 8.— Oligocene ; 
Canton Glarus, Switzerland. [Imperfect fish ; Zurich 
Museum.] 
The following extinct species have also been referred to existing 
genera of Percidse, but are not represented in the Collection : — 
Anthias bassanii, D. G. Kramberger, Rad Jugoslav. Akad. vol. cvi. 
(1891), p. 77. Anthias cfr. stiriacus, F. Bassani, Atti 
