320 
ACTINOPTEKYGII. 
Genus COBITIS (Artedi), Linnaeus. 
[Syst. Nat. ed. 10, 1758, p. 303.] 
Syn. Acanthopsisj L. Agassiz {non \an Hasselt, 1823), Neues Jahrb. 
1832, p. 134. 
Trunk elongate and laterally compressed. A small erectile sub- 
orbital spine on the cheek. Pharyngeal teeth in single series. 
Barbels on upper jaw. No pseudobranchiae. Air-bladder enclosed 
in bony covering. Dorsal fin short, opposed to or immediately 
behind the pelvic pair : anal fin short; caudal fin rounded, truncate, 
or slightly forked. Scales minute. 
Existing species occur only in the freshwaters of Europe and Asia. 
It is impossible with certainty to separate the extinct species here 
recorded from the genus Kemachilus, Cuvier (which has no erectile 
suborbital spine). 
Cobitis centrochir, Agassiz. 
1832. Cobitis centrochir, L. Agassiz, Neues Jahrb. p. 134 (name only). 
1835-39. Cobitis centrochir, L. Agassiz, Poiss. Foss. vol. v. pt. ii. p. 11, 
pi. 1. figs. 1, 4. 
1861. Cobitis bredai, T. C. Winkler, Descript. Poiss. Foss. d'Oeningen 
(Natuurk. Verhandl. Holland. Maatsch. [2] vol. xiv.), p. 9, pi. i, 
figs. 1-3. [Imperfect fish; Teyler Museum, Haarlem.] 
1880. Nemachilus centrochir, H. E. Sauvage, Bull. Soc. Geol. France, 
[3] vol. viii. p. 448. 
1880. Nemachilus bredai, H. E. Sauvage, ibid. p. 449. 
Tupe. Imperfect fish ; olim Lavater Coll., Zurich. 
A small species not exceeding 0*1 in length. Length of head 
with opercular apparatus slightly exceeding the maximum depth of 
the trunk and contained about five times in the length to the base 
of the caudal fin. Yertebrae 26 in the abdominal, 14 in the caudal 
region. Pelvic fins with 7, dorsal and anal fins with 9 or 10 rays; 
dorsal fin arising midway between the extremity of the snout and 
the base of the caudal fin, directly opposed to the pelvic pair; anal 
fin arising midway between the pelvic pair and the caudal, which 
is rounded or truncated. 
Form. 4' Log. Upper Miocene ; Oeningen, Baden. 
P. 1786, P. 3867. Two very small specimens, labelled by Agassiz. 
Eger ton Enniskillen Colls. 
42795. Similar specimen. Van Breda Coll. 
42T82. Imperfect large specimen, partly in counterpart. 
Van Breda Coll. 
