FISTULA RIID.E. 
375 
Fistularia longirostris (Blainville). 
1796. Esox belone, G. S. Volta, Ittiolit. Veronese, p. xviii. pi. v. fig. 2 
(err ore). 
1818. Flsox longirnstris , II. D. de Blainville, Nouv. Diet. d’Hist. Nat. 
vol. xxvii. p. 341. 
1835. Fistularia temiirostris, L. Agassiz, Neues Jahrb. p. 291 (name 
only). 
1839-42. Fistularia fenuirostris, L. Agassiz, Poiss. Foss. vol. iv. p. 280, 
pl- xxxv. fig. 4. 
1876. Fistularia tenuirostris, F. Bassani, Atti Soc. Veneto-Trent. Sci. 
Nat. voL iii. p. 181. 
Type. Imperfect fish ; Museum of Natural History, Paris. 
A very small species, attaining a length of about 0'2. Im- 
perfectly known, but anterior fused vertebra; considered by Agassiz 
to be relatively shorter than in the other known species. Dorsal 
bn with 12 or 13 rays, anal fin with at least 9 or 10 (according to 
Eassani). 
Form. <)- Loc. Upper Eocene : Monte Bolca, near Vorona. 
Not represented in the Collection. 
Genus AULOSTOMA, Laeepede. 
[Hist. Nat. Poiss. vol. v. 1803, p. 357.] 
Teeth very minute, only on mandible and vomer. Vertebra; 
about 50 to 65 in total number, at least half being caudal. Inter- 
muscular bones very numerous and long. Pectoral fins on flank ; 
mfraclavicles not much extended; small pelvic fins remote; a series 
of very slender, small free spines in front of dorsal fin, which 
is remote ; anal fin similar to soft dorsal ; caudal fin rhombic, 
Without elongated ray. Scales small and ctenoid. 
Existing species distributed like those of Fistularia. 
Aulostoma bolcense (Blainville). 
1796. Fistularia chinensis, G. S. Volta, Ittiolit. Veronese, p. xvi. pl. v. 
fig- 1 (errors). 
1818. Fistularia Mcensis , H. D. de Blainville, Nouv. Diet. d’Hist. 
Nat. vol. xxvii. p. 340. 
1835. Aulostoma bolcense, L. Agassiz, Neues Jahrb. p. 291 (name 
only). 
1839-42. Aulostoma bolcense, L. Agassiz, Poiss. Foss. vol. iv. p. 282, 
_ pl. xxxv. figs. 2, 3. 
1876. Aulostoma bolcense, F. Bassani, Atti Soc. Veneto-Trent. Sci. 
Nat. vol. iii. p. 181. 
Type. Imperfect fish ; Museum of Natural History, Paris. 
