574 Davis—On the Fossil Fishes of the Chalk of Mount Lebanon. 
Hakel. It occurs in all sizes, from the young, about an inch in length, to the 
full-grown adult. 
Clupea minima, AGASS. 
Clupea minima. Agassiz, L., 1833-43. ‘“‘ Rech. sur les poiss. foss.,” vol. v., pt. 2, 
p: £205 pl uxt; figs. 
Clupea minima. Picrer, J. F., 1850. “ Desc. de quel. poiss. foss. du Mt. Liban.,” 
p- 41, pl. vuz., fig. 4. 
Clupea minima. Picrer et Humpert, 1866. ‘“‘ Nouv. rech. sur les poiss. foss. du 
Mt. Liban.,” p. 68. 
Clupea minima. Fraas, Oscar, 1878. ‘Aus dem Orient. II. Theil. Geolog. 
beobachtungen am Libanon,” p. 91. 
This species was described by Agassiz as not only the smallest of the genus, 
but probably of the whole family. The head has the ordinary proportions, and 
is about one-fifth of the entire length of the fish. The dorsal fin is described as 
rather long; it is exactly median, and contains at least twelve rays. The 
vertebral column contains twenty-nine vertebre, of which fourteen are caudal. 
The ribs are more slender than the apophyses. 
Pictet expressed much doubt as to whether this species should be retained in 
the genus Clupea, and considered the incomplete description of Agassiz insufficient 
to justify its being so. This author afterwards describes a series of C. minima as 
Leptosomus crassicostatus (‘‘ Nouv. rech. sur les poissons fossiles du M. Liban.,” 
p. 74). 
Formation and Locality.—Schistes Calcaires du Liban. 
Ex coll_—Mons. Amie, Paris. 
Clupea lata, Acass. 
Clupea lata. Acassiz, L., 1833-43. ‘Rech. sur les poiss. foss.,” vol. v., pt. 2, 
p. 118) pla. fie. 10: 
Clupea lata (non), Picrer, J. F., 1850. ‘Desc. de quel. poiss. foss. du Mt. 
iiiban:,? ps 37,0p)..vi, fe. 1 
Clupea lata. Prcrer et Humbert, 1866. ‘‘ Nouv. rech. sur les poiss. foss. du Mont 
Liban.,” p. 68, pl. vir, fig. 6. 
Clupea lata. Fraas, Oscar, 1878. ‘‘ Aus dem Orient. II. Theil. Geolog. beo- 
bach. am Libanon,” p. 91. 
Clupea lata was described by M. Agassiz from a specimen in the cabinet of 
M. Alex. Brogniart; it is distinguished principally from the great depth of the 
body immediately behind the head, instead, as is generally the case, its greatest 
