466 Davis—On the Fossil Fishes of the Chalk of Mount Lebanon. 
5. Zone of Ammonites syriacus. 
6. Cardium beds. 
7. Zone of Gasteropods of Abieh. 
III. Cenomanbildung. 
8. Sandstone-formation with beds of coal and bitumen. 
9. Glandarien-zone. (Cidarites glandarius. ) 
The Senonmergel, in addition to the nummulites and some species of molluscs, 
contains the remains of fishes. Dr. Fraas enumerates several species, of which 
the following is a list. They are all from the hill, Abu Tor, on the road between 
Hinnom and Bethlehem. 
1. Otodus lanceolatus, Agass. (Poiss. foss. vol. iii., plate 37, fig. 20.) 
2. O. appendiculatus, Agass. (_,, cs ‘s spe) S2yeti geal os) 
3. Oxyrhina mantelli, Agass. ( ,, si 54 » 92, figs. 3-9.) 
4. Lamna compressa, Agass. (_,, 3 5 ob Ol phe Ooe) 
5. L. acuminata, Agass. (ae 35 . sr OM gules, OAs) 
6. Enchodus halocyon, Agass. (_,, 6) VOL Way on ype 1005 Hose he) 
7. Ptychodus polygyrus, Agass. (_,, ry AGI TH gy 828) 
8. Corax heterodon, Reuss. (Bohm. Kreid., plate 3, figs. 49-71.) 
=C. falcatus, Agass.) 
9. Lamna subulata, Agass. (Poiss. foss. vol. 111. p. 296, pl. 37a, figs. 5—7). 
10. L. elegans, Agass. Gass. » p- 289, pl. 35, figs. 1-7). 
The species numbered 1-6 are given in ‘‘ Aus dem Orient,” pt. 11., pp. 100, 101. 
Those numbered 7-10 are from the same locality, and are described by the author 
in ‘Aus dem Orient,” pt. 1., p. 109. I have had no opportunity of confirming the 
above identifications; their English equivalents range from the Lower Neocomian 
(O. appendiculatus, Ag.), through the chalk series, to the London clay (Lamna 
compressa, Ag., and L. elegans, Ag.), and, taken together with the invertebrate 
fauna, appear to indicate that the Senonmergel, or white chalk of Palestine and 
Syria is either a tertiary deposit, or that the fossils may have been collected 
from several horizons, and that there has been a gradual and continuous process 
of deposition from the chalk to the tertiary epochs. 
The upper beds of the Turonian group contain the fish remains which have 
made the locality famous in Ichthyological annals. The Sahel Alma marls 
are replete with the fossil mollusc, Pholadomya fabrina, d’Orb., from which Dr. 
Fraas suggests the name Pholadomyenmergel, to distinguish them from the 
several divisions into which the group is divided. Besides the Pholadomya 
fabrina several others are found, and along with them two or three species of 
