LOPHIID^E - 



59 



Two other torsos of large fishes (CXLIII) with strong vertebrae 

 have been sent to us by Mr. Porteous. All seem to be new to science, 

 but the characters shown do not allow us to venture on giving them 

 places in the system. 



Family LOPHIID^i (?). 



53. Emmachaere rhachites Jordan and Gilbert, new genus and species. 



(Plate XXVIII, fig. 2) 



Type (No. CXLIII) the torso of a large fish, lacking the head, 

 remarkable for the large dagger-shaped interneurals, found in diato- 

 maceous deposit at Lompoc, Mr. Edward J. Porteous. Head and anterior 

 region wanting; fourteen vertebrae preserved, these very stout and 

 straight, about as long as deep, without expanded interhaemal; depth 

 at front of anal (3 inches) equal to length of 8*/2 vertebrae. First 

 dorsal, if present, now obliterated. Soft dorsal with short, stout rays ; 

 anal inserted 3 vertebras in front of it, showing traces of about sixteen 

 rays, decreasing rapidly backward ; anterior interhaemals long and stout ; 

 interneurals present very strong, dagger-shaped with edges somewhat 

 expanded at base. Caudal represented by part of lower lobe, its rays 

 strong; hypural plate divided, the lower part broadly triangular, the 

 distal truncated border nearly equal to its length. 



We cannot place this fish with certainty, but as its vertebral column 

 and appendages bear a degree of resemblance to like parts in LOPHIUS, 

 we place it provisionally among the Pediculate fishes. A comparison 

 of interneural bones and vertebrae should finally determine its affinities. 



The name is from ev, within; [la^aiQiq, a dagger. 



Family DELPHINID^. 



Phocaena occidua (Leidy). 



(DELPHINUS OCCIDUUS Leidy, Proc. Acad. Nat. Set. Phila., 1868, p. 197.) 



(Plate IX, fig. 2; Plate XXVIII, figs. 1, 3) 



Besides the fishes described in this paper we have also the posterior 

 part of the vertebral column of a species of dolphin. Our knowledge of 

 the group does not permit us to assign it to any particular species, or even 

 genus. We see, however, no difference from the living genus, PHOCENA. 



No. CXXXVI, from San Pedro, in rocks of Miocene age, a 

 friable sandstone shale. 



This fossil is broken into two pieces on the same slab. It represents 

 in the first part the imprint of eight segments with traces of three others, 



