52 
actinopterygii. 
5 in number, the centra more elongated than in the type i 
Fins as in the type species. 
4 Loc. L pper Cretaceous : Sahel Alma, Mount Lebanon. 
46521. Very large fish, partly shown only in impression 
the principal characters of the species 
i, display 
P. 1878. Specimen about 0-2 in length. 
f .„ying 
Lewis Coll 
Coll 
Egerton * 
n equally large specimen displaying the head, which i® 
shown of the natural size in PI. VII. fie. 3 . The head is 
exnnspH . .qhed 
The head I 
exposed from the left side, and is a little obliquely crusl 
at the imperfect left mandibular ramus is displa ce 
upwards. The cranium is shown to be elongated and 
depressed, with a straight basicranial axis. The pterVgO' 
quadrate arcade is shown to be delicate and apparently 
toothless ; while the mandibular suspensorium is almost 
vertical though arched, and the articular end of the 
mandible is beneath the back of the head. The front 
half of the left facial region is broken away, so that the 
characteristic maxilla of the right side is partly expose 
om within, and there seem to be traces of a very short 
premaxilla at its anterior end. Above the maxilla (**■) 
the large antorbital check-plate is seen (a.o.), V aT ^ 
red a , nd dls P la J'ing the radiating branches from the 
ime-canal Below the maxilla, adjoining the remain® 
of the mandible (d.), there is an impression of the 
conical tooth at its symphysis. Between the mandibular 
rami the letfc ceratohyal is narf.lv . and the senes 
— , ^i«upercuium ( 
... 1 ar £° tnangular expansion at its lower end, mar 
a cw radiating blanches of the slime-canal; 
operculum and suboperculum behind are too m 
e and fractured for recognition. Just behind 
ercu um there are traces of the thickened ante 
neural spines. Lew U I 
tion '* (r ^ &r ^ e 8 P ec imen apparently elongated by die 
Lewis 
44831, 46516, 465l9_on p 
*0. Four nearly complete fishes. 
Lewi 
