CYPRINODONTIDiE. 
293 
®®®1. Two small specimens. Enniskillen Coll. 
1908. Small distorted specimen, probably of this species. 
Purchased. 
Prolebias goreti, Sauvage. 
!880. Prolebias goreti, H. E. Sauvage, Bull. Soc. G<5ol. France, [3] 
v °l. viii. p. 445, pi. xii. figs. 1, 2. 
type. Imperfect fish. 
^ species with moderately robust skeleton about 0'045 in length. 
on gth of head with opercular apparatus about equal to the 
Maximum depth of the trunk, and contained nearly four times m 
the total length to the base of the caudal fin. Vertebra) 12 in the 
abdominal, 16 i n the caudal region. Dorsal fin with 10 rays, 
arising immediately in front of the anal, which comprises 14 rays. 
horrn. Loc. Lower Miocene : Cercste, Basses Alpes. 
P ' 3 78. Imperfect fish, in counterpart ; Cereste. Gardner Coll. 
Prolebias brongniarti (Agassiz). 
18-34. Aspius brongniarti, I,. Agassiz, Neues Jalirb. p. 383. 
1835-39. Aspius brongniarti , L. Agassiz, Poiss. Foss. \o . P • 11 ■ 
p* 38, pi. lv. fio*. 4. _ 
7874. Prolebias oustaleti, II. E. Sauvage, Bull. Soc. Hist. IS at. 
Toulouse, vol. viii. p. 193, pi. i. figs. 6, 7. [Imperfect fish.] 
1874. Aspius brongniarti, II. E. Sauvage, ibid. p. 195. 
Type. Imperfect fish ; olim A. Brongniart Collection. 
A large species, attaining a length of about O' 13. Dengt o 
r ad with opercular apparatus equal to the maximum ep o 
^ unk, which is contained four times in the length to t e asc 
the caudal fin. Vertebra) about 20 in the abdominal, - in ic 
c audal region ; 17 pairs of ribs. Dorsal fin with about I- rays, 
rising immediately in advance of the origin of the ana > w 1C 1 
m °re extended with 14 or 15 rays ; caudal fin slightly forked. 
Ihe synonymy here given assumes that the discrepancies ic ween 
the two original definitions are due to imperfections m the speci- 
mens studied. The amended definition now proposed is based on 
the specimens enumerated below. 
Form. Sf Loc. Lower Miocene (Lignite): Puy-de-Dome, France. 
Pl 3863. Impression of large fish about 
of the dentition ; Menat. 
0'13 in length, with traces 
Enniskillen Coll. 
