1875.] ^^^ [Copo. 



Reptilia. 



Triontx lima, Cope, Ext. Batr. Kept. N. Amer., 1870, p. 153. PI. vii. 



Fig. 14. 

 PuppiGERUs GRAND^vus, Leidy, Chelone grandcBva, Leidy, Proceed. 



Acad. Philadelphia, 1861, p. 203 ; Puppigerus grandcevus, Cope, Ext. 



Baltr. Kept. N, A., 1870, p. 235. 

 Thecachampsa sericodon. Cope, Proceed Acad. Phila., 1867, p. 143 ; 



Ext. Batr. Kept. N. Amer., 1870, p. 43, Fl. v. Fig. 8. 



Incertae sedts. 



Agabelus porcatus. Cope, gen. et sp. nov. 



Established on an osseous body which nearly resembles the elongate 

 muzzle of a Priscodelphinus without teeth, but with the alveolar lines ex- 

 cavated into a deep groove on each side. The superior surface possesses 

 a shallow median groove as in most delphinoid cetaceans, while the sup- 

 posed palatal face is plane and sharply defined by the lateral grooves. 

 The latter are bounded above by a thin overhanging border on each side, 

 and their fundus is marked by a series of nutritious foramena of small 

 size, apparently corresponding to the positions of teeth of other genera. 



With this imperfect material it is impossible to decide positively on the 

 character of this genus, but I suspect that it will be found to be allied to 

 the sword-dolphins of the genus lihabdosteus, Cope. 



Char. Specif. The general form is depressed, and the outline tapers 

 regularly to near the apex. The upper face presents two convexities, 

 one on each side of the median groove, but towards the base these parts 

 are not exactly symmetrical. There is a narrow bevel descending to the 

 margin on each side. The grooves are wide and deep, anteriorly wider 

 than the palatal rib which separates them, and opening outward as well 

 a 5 downwards. Bone moderately dense, surface not covered with the 

 cementum and faintly longitudinally line-grooved. Total length of frag- 

 ment, M. .065 ; width do. at base, transversely .012, vertically, .006 ; with 

 palate at base .007 ; at broken extremity, .002 ; depth at do. .0035. 



Mammalia. 



Sqtjalodon atlantictjs, Leidy, Cope, Proceed. Academy, Philada. , 1867, 



p. 153 ; Macrophoca atlantica, Leidy, I. c. 1856, p. 220. 

 Zarhachis velox, Cope, Proceed. Acad. Philadelphia, 1869 (March). 

 Priscodelphinus harlani, Leidy, Proceed. Acad. Phila., 1851, p. 327. 

 Priscodelphinus lacertosus. Cope,' DelpMnapterus lacertosus, Cope, 



ibidem, 1868, p. 190. 

 Priscodelphinus grand.3EVUS, Leidy, ibidem, 1851, p. 327. Tretospliya 



grandcevus, Cope, ibidem, 1869 (March). 

 Priscodelphinus uraeus, Cope, Tretosphys uraeus, Cope, 1869 (March). 



The four preceding species may be regarded as congeneric for the 

 present, as they are similar in the forms of the vertebrae, especially in 



