1903.] H<^yi Cretaceous Fishes from Mount Lebanon, Syria. 4^7 



the region of the bony mass behind the head. There are 

 apparently 13 dorsal rays. A considerable portion of the 

 body is covered with scales. No. 4506c (3799), from Hakel, 

 exposes on the matrix an impression of the caudal fin. It has 

 been deeply forked. The larger rays have been obliquely 

 segmented; the median ones split up into smaller filaments. 



No. 45o6(i (3866) is part of a fish which had a depth of at 

 least 125 mm. It presents the ventral fins; but no other fins 

 are present to afford us a means of locating the position of 

 the ventrals. These fins appear to have been about 30 mm. 

 long. 



No. 4506^ (3823), from Hakel, is about as large as No. 

 4506a (3681). It seems to present some traces of the ven- 

 trals at a point 75 mm. in front of the anal fin. There are 

 also some faint indications of the bony mass on the back, to 

 which reference has been made above. 



No. 3899, of the Cope Collection, is probably from Hakel. 

 The specimen resembles much the one figured by Pictet and 

 Humbert, but not so much of the body is present. One pec- 

 toral fin is well exposed, mostly as an impression on the ma- 

 trix (PI. XXX, Fig. i). The longest ray, the most anterior, 

 has a length of 65 mm., and its distal end is slightly more 

 than 7 mm. wide. The next ray, somewhat shorter, is 9 mm. 

 wide distally. The other rays are successively shorter and 

 narrower. All the rays, for a great part of their distal por- 

 tions, are longitudinally divided. There appear to be some- 

 what more than 10 rays. No teeth are seen in this specimen. 



CTENOTHRISSID^. 



Ctenothrissa signifer, sp. nov. 



Plate XXXI, Figures i and 2. 



Two fishes which were collected at Hajula belong evidently 

 to an undescribed species of Ctenothrissa. The number of 

 the type is 4521a (3651). With its counterpart, it furnished 

 all parts of the animal. A second specimen is numbered 

 45216 (3813). 

 [Jmn-, igoj.] ^7 



