CTPRIXH)^. 
321 
Cobitis angustus (Agassiz). 
1832. Acanthopsis angustus, L. Agassiz, Neiies Jahrb. p. 134 (name 
only). 
1835-39. Acantliopsis angustus, L. Agassiz, Poiss. Foss. vol. v. pt. ii. 
p. 8, pi. 1. figs. 2, 3. 
1880. Cohitis angustus, H. E. Sauvage, Bull. Soc. Geol. France, [3] 
Yol. Yiii. p. 449. 
Type. Imperfect fish. 
A very small species, distinguished from the preceding by its 
more elongated form and slightly more remote position of the 
dorsal fin. 
Form. Log. Upper Miocene: Oeningen, Baden. 
36121 a. Fish 0*038 in length. Purchased, 1859. 
P. 1785. Smaller specimen, labelled by Agassiz. Egerton Coll. 
P. 9424. Two imperfect specimens. Purchased. 
Cobitis cephalotes, Agassiz. 
1832. Cohitis cephalotes, L. Agassiz, Neues Jahrb. p. 134 (name only). 
1835-39. Cohitis cephalotes, L. Agassiz, Poiss. Foss. vol. v. pt. ii. p. 13, 
pi. 1. figs. 5-7. 
1861. Cohitis teyleri, T. C. Winkler, Descript. Poiss. Foss. d'Oeningen 
(Natuiu’k. Verhandl. Holland. Maatsch. [2] vol. xiv.), p. 13, pi. i. 
fig. 4. [Nearly complete fish ; Teyler Museum, Haarlem.] 
1880. ^Nemachilus cephalotes, H. E. Sauvage, Bull. Soc. Geol. France, 
[3] vol. viii. p. 449. 
1880. Nemachilus teyleri, H. E. Sauvage, ibid. p. 449. 
Type. Imperfect fish ; Carlsriihe Museum. 
A species attaining a length of about 0*15. Length of head with 
opercular apparatus much exceeding the maximum depth of the 
trunk and contained about three and a half times in the length to 
the base of the caudal fin. Vertebrae 24 in the abdominal, 15 in 
the caudal region. Fins as in C. centrochir, except that the caudal 
is forked. 
Form. Log. Upper Miocene: Oeningen, Baden. 
P. 3868. Distorted hinder half of fish, labelled by Agassiz. 
EnnisTcillen Coll. 
43444. Distorted fragment, probably of this species, in counterpart. 
Presented hy Kenneth Hurchison, Esq., 1872. 
Fragmentary remains apparently of a species of Cohitis are also 
recorded from a freshwater Upper Tertiary formation in Idaho, 
U.S.A. (E. D. Cope, Proc. Acad. Nat. Sci. Philad. 1883, p. 161). 
PART IV. ^ 
