1903.] Hay, Cretaceous Fishes from Mount Lebanon, Syria. 4^9 



sent either the sculpture of a bony scute or a number of rays 

 of a dorsal fin. On one side of this, 6, is a bony scute whose 

 axis runs obliquely to the axis of the head; while at c there 

 is another scute whose greater axis is transverse to that of 

 the head. Still farther away, at d, is found the supposed 

 lower jaw. Around this are some remains apparently of fin 

 rays. Finally, at e, is seen a very large bony plate, 7,1 mm. 

 long and 21 mm. wide. One end is narrowed and rounded 

 off. Near this plate also there are seen scattered fin rays. 

 All the plates are tuberculated. 



Nowhere are there any certain evidences of vertebral centra 

 or ribs. There seem to be some evidences of neural or haemal 

 arches. 



PYCNODONTID^. 



Coccodus lindstroemi Davis. 



Plate XXIX, Figure i. 



Coccodus lindstroemi Davis (J. W.), Jour. Geol. Soc, XLVI, 1890, 

 p. 565, pi. xxii. — Woodward (A. S.), Cat. Foss. Fishes, III, 1895, p. 

 268. 



Of this not well-known species there are in the collection 

 three specimens. One of these. No. 4517a (3698), with its 

 counterpart, presents the head. The second, No. 45176 

 (3699), much damaged, shows a part of the head, with the 

 occipital spine, and a portion of the abdominal region. The 

 third. No. 4517c (3793), also presents the head and a com- 

 plete occipital spine. The first-mentioned specimen is here 

 figured (PI. XXIX, Fig. i). On the hinder border of the 

 spine there are 14 denticles. The region below the orbit has 

 been covered with bony plates, whose surface was ornamented 

 with more numerous and smaller tubercles than the other 

 portions of the head. Behind the occipital spine is seen a 

 series of fin rays, 10 in number. They are slender, and pre- 

 sent distinct evidences of segmentation, but none of longi- 

 tudinal division. They extend downward beneath the bony 

 covering of the region and toward the neural spines, or be- 

 tween them. No. 4517c (3793) shows the presence of the 



