524 
actixopterygii. 
Archasoteuihis glaronensit, A. Wettstein, Fischfauna Tcrtiaer. 
Olarnerschiof. (Denkschr. schweiz. Pal. Ges. vol. xiii. 
1880), p. 07, pi. viii. iig. 11. — Oligoceno ; Canton Glarus, 
Switzerland. [Imperfect fish with 12 dorsal and 6 anal 
fin-spines ; Basle Museum.] 
Family SPA11ID/E. 
As Percida 2 , but dentition of premaxilla and dentary specialised, 
so that there is either a sharply cutting margin or a prehensile or 
cutting margin with inner molariform teeth ; palate toothless or 
with rudimentary dentition. 
In the existing fauna, these are marine fishes found on all 
temperate and tropical coasts. 
Synopsis of Extinct Genera and Genera represented 
by Extinct Species. 
Single series of stout, obtusely-conical teeth, 
with minute similar teeth within Sparnudus (p. 524). 
Incisiform front teeth, and two or more series 
of molariform hinder teeth Sargus (p. 529). 
Very broad incisiform teeth in front Triyonodon (p. 531). 
Minute clustered front teeth, with few enlarged 
canines, and two or more series of molari- 
form hinder teeth Payellus (p. 532). 
Conical prehensile front teeth, and two series of 
molariform hinder teeth Payrus (p. 533). 
As Payrus, but three or more series of molari- 
form hinder teeth, usually irregular Chrysophrys (p. 5.31). 
Genus SPARNODUS, Agassiz. 
[Poiss. Foss. vol. iv. 1838, p. 10.] 
Syn. Scuenurus, L. Agassiz, Rep. Brit. Assoc. 1844 (1845), p. 295. 
A singlo series of stout obtusely-conical teeth on the margin of 
the jaws, longest at the symphysis, gradually becoming very short 
behind; a few irregular, minute, obtusely-conical teeth within. 
Preoperculum pectinated and very finely serrated. Dorsal fin with 
10 spines, anal fin with 3 spines. Scales large or of moderate size, 
not serrated but very finely rugose in their exposed portion, ex- 
tending over the operculum and cheek, and forming a sheath at the 
base of the dorsal and anal fins. 
An Upper Eocene and Lower Miocene genus. 
