196 CATALOG OF FOSSIL FISHES IN THE MUSEUM 



are rather weaker than in L. atrox, and upon the ornamentation of the 

 scales. These appear perfectly smooth to the naked eye, except for 

 one, or sometimes two, large punctas near their centres, while under a 

 lens the entire surface is seen to be covered with minute pittings. 



The fossil was obtained some years ago from a track hand, in Wyo- 

 ming, by the late Dr. Ernest Wende, formerly a director of the Buffalo 

 Society of Natural Sciences; it later became the property of the 

 Society through the kindness of Mrs. Wende. 



E 2150 A gar pike 88 cm. in length, on a slab of shale (PL 68). The 

 fish is shown in lateral view, except the head, which rests 

 on its dorsal surface, displaying the inside of the cranium. 

 All the fins are shown — more beautifully, in fact, than 

 in any other specimen hitherto known. The left pec- 

 toral is shown above the right, and the same is also the 

 disposition of the ventrals. 



In the head, the left maxilla is detached and lies above 

 its mate, with its large laniary teeth overlapping the 

 mandible — as seen near the bottom of the figure. The 

 vomer, palatines, and parasphenoid are very little dis- 

 turbed. The facial bones are badly crushed, but both 

 cleithra are preserved. Little can be said as to the ex- 

 ternal ornamentation of the head plates, except that the 

 outer surface of the left cleithrum seems to be covered 

 with fine, oblique striations. The mandibles and max- 

 illae each bear a double series of teeth, and the vomer 

 and palatines are covered with short conical teeth. 



The longest vertebral centrum exposed (above base of 

 ventral fin), measures 1.2 cm. in length. 



The pectoral fin has 9 rays, and shows a series of 

 slender fulcra. The ventrals are nearer the anal than the 

 pectoral, have 5 rays, and are armed with biserial fulcra. 

 The anal has 8 or 9 rays, the dorsal 7. The latter begins 

 about opposite the origin of the anal. The caudal, which 

 is completely preserved, i^ rounded posteriorly, and has 

 15 rays. The fulcra of its upper margin are slender, and 

 apparently in a single series; those of the lower margin 

 are robust and biserial. 



The ornamentation of the scales has already been 

 referred to above. The squamation is much disturbed 



