CATALOG OF FOSSIL FISHES IN THE CARNEGIE MUSEUM oie 
em. in length, partly distorted, in the British Museum of Natural History, and by 
two larger specimens measuring in total length 33 and 38 cm. respectively, in the 
Carnegie Museum. These are cataloged under the numbers 4223 +-4223a, and 4890. 
There is also a distorted and imperfectly restored specimen cataloged as No. 4363, 
which may possibly be referred to this species. 
28. Thynnus latior (Agassiz). 
1796. Scomber orycynus Volta, Ittiolit. Veronese, p. 226, pl. LV, fig. 2 (errore). 
1844. Orycynus latior Agassiz, Poiss. Foss., Vol. V, p. 60, pl. XXIV. 
Type.—Imperfect fish; Paris Museum of Natural History. 
The type specimen of this form has remained up to the present time unique. 
One nearly complete individual, preserved in counterpart, belongs to the Bayet 
Collection, and is cataloged as No. 4533, 4533a. All of the fins are beautifully 
displayed. 
29. Thynnus bolcensis Agassiz. 
1796. Scomber thynnus Volta, Ittiolit. Veronese, p. 119, pl. XX VII (errore). 
1844. Thynnus bolcensis Agassiz, Poiss. Foss., Vol. V, pt. 1, p. 57 (undescribed). 
Type.—Imperfect fish. Paris Museum of Natural History. 
The type and, until recently, solitary known example of this species was 
wrongly identified with the existing Tunny by Volta, and afterwards recognized 
by Agassiz as belonging to a distinct species, for which he proposed the undefined 
name of Thynnus bolcensis. A fine large example measuring 95 cm. in total length, 
and displaying the essential features to good advantage, forms one of the ornaments 
of the Bayet Collection. It is on exhibition in the Hall of Fossil Vertebrates, and 
is catalogued as No. 5245. A more detailed account of this form is reserved for a 
subsequent paper. 
Genus Auxis Cuvier. 
This genus resembles Scomber proper in having the two dorsal fins well 
separated, but the caudal pedicle carries a lateral keel and the pectoral scales are 
enlarged. The following species is doubtfully referred to this genus by A. Smith 
Woodward. 
30.. Auxis (?) propterygia (Agassiz). 
1796. Scomber pelamis G. 8. Volta, Ittiolit. Veronese, p. 66, pl. XIV, fig. 2 (errore). 
1796. Scomber trachurus G. 8. Volta, ibid., p. 125, pl. X XIX, fig. 2 (errore). 
1796. Ophicephalus striatus G. S. Volta, ibid., p. 193, pl. XLVIII, fig. 1 (errore). 
1818. Scomber pelamis (?) H. D. de Blainville, Nouv. Dict. d’Hist. Nat., Vol. 
XXVII, p. 345. 
