478 
ACTINOPTEETGir. 
1834. Anenclielum latum, L. Agassiz, ibid. p. 302 (name only). 
1834. Anenchelum isopleurum, L. Agassiz, ibid. p. 302 (name only)’ 
1834. Anenchelum heteropleurum , L. Agassiz, ibid. p. 302 (name on y • 
1842—44. Anenchelum tjlarisianum, L. Agassiz, Poiss. Foss. vol. v. pi- *• 
p. 70, pi. xxxvii. figs. 1, 2. 
1842-44. Anenchelum isopleurum, L. Agassiz, ibid. p. 71, pi- xxxvii- 
fig. 3. [Immature distorted fish ; British Museum.] __ 
1842-44. Anenchelum dorsale, 1,. Agassiz, ibid. p. 72, pi. xxxvii. fig- ’ 
pi. xxxvii a. figs. 1, 2. [Fragmentary distorted specimen ; Butis 
Museum.] 
1842-44. Anenchelum heteropleurum, L. Agassiz, ibid. p. 73, pi- xxxvii 
fig. 8. [Distorted large fish ; British Museum.] 
1842-44. Anenchelum latum, L. Agassiz, ibid. p. 74, pi. xxxvi. L 111 
perfect anterior half of fish ; Zurich Museum.] 
(P) 1844. Anenchelum loni/ipenne, L. Agassiz, ibid. p. 74 (name on y ^ 
(?) 1847-48. Anenchelum breviceps, C. G. Giebel, Neues Jahrb. - ‘ ’ 
p. 665, and Fauna d. Vorw., Fische, p. 80. [Imperfect distoi 
fish ; University Geological Museum, Halle.] 
1859. Anenchelum latum, G. vom Rath, Zeitschr. deutsch. geol. " BS ‘ 
vol. xi. p. 122, pi. iii. fig. 6, pi. iv. 
1859. Anenchelum dorsale, G. vom Rath, ibid. p. 122, pi- hi- fin’ ' _ 
1859. Anenchelum glarisianum, G. vom Rath, ibid. p. 122, pi- hi- 
1859. Anenchelum heteropleurum, G. vom Rath, ibid. p. 123. 
(?) 1859. Anenchelum breviceps, G. vom Rath, ibid. p. 12.!. 
1859. Anenchelum isopleurum, G. vom Rath, ibid. p. 123. 
1886. Ijepidopus glaronensis, A. Wettstein, Fischfauna Tertis' 
Glarnerschief. (Ilenkschr. schweiz. Palaeont. Ges. vol. xm-ji 
p. 42, pi. v. figs. 1, 3, 5, 9, 10, pi. vi. figs. 1, 3, 5-8. 
Type. Imperfect fish. ^ 
A slender species attaining a length of over one metre. Ton,, 
of head with oporcular apparatus contained eight times, maxim' 11 ' 1 
depth of trunk about ninotcen times in the total length of the fi s 1 
to the base of the caudal fin. About 12 teeth on the margin o 
each jaw above and below; one enlarged at anterior end of p re 
maxilla ; those of middle of dentary twice as high as those in rl,11 __ 
and behind ; the largest more or less recurved. Vertebrae 32 to • « 
in the abdominal, 72 to 75 in tko caudal region. 1’ectoral fins un 
usually large, the length of the two lowest rays equalling twice t m 
depth of the trunk ; dorsal fin arising above first vertebra, tormina 
ting over sixth from caudal fin, and its anterior 10 or 12 rajs ^ 
longest; anal fin terminating opposite end of dorsal; caudal 
larger than in the existing species. 
This is the type species of Anenchelum. The known examp * 
are very variously distorted, and it is difficult to determine 1 
exact proportions. 
Form. S[ Loc. Oligocene : Canton Glarus, Switzerland. 
