132 SPECIMENS OF CETACEA. 



cranii ; premaxillse concave in front of nares, then 



50 50 

 convex almost as far as pointed tip. Teeth — ^, 



small, acute. Vertebral formula C^J)■^^^'LCd^^ — 75. 

 Northmaven, Shetland, 1895. 



Donor — Thos. Anderson, Esq. 



3. Skull, with mandible. Length 17| inches, breadth 



7-^ inches. Beak, length 11 inches, breadth at base 



3f inches, breadth at middle 2 inches. Nasals and 



transverse ridge on vertex on same plane ; pre- 



maxillaries concave in front of nares, then narrow 



and convex nearly to the pointed tip ; pterygoids 



moderate, meeting mesially ; hard palate with a strong 



mesial ridge, on each side of which is a deep, broad 



groove. Syinphysis of mandible 2i inches. Teeth 



46 46 

 small, acute, j^ j^ • 



4. Rostrum with broken mandible. Beak 10| inches long, 



3f inches broad at base. Sjnnphysis 2 inches long. 



Palate with broad mesial ridge, on each side of which 



is a groove, deep behind, shallow in front. Teeth 



. -, 47 47 

 snnple, conical, ^ ^. 



5. Mandible, length 16| inches, height 2f inches; symphy- 



sis, length 2 1 inches. Teeth in each half 49, small, 

 acute. 



6. Tympano-periotic bones, pair of, articulated. Tympanic, 



length II inch, breadth f inch, height ^ inch. Bilobed, 

 inner flattened laterally, small, rough, and pointed ; 

 outer larger, rounded, and smooth. Periotic, length 

 1^ inch, breadth ^ inch. Tympanic ossicles present. 

 From No. 1. See figure of tympanic below. 

 Dalmeny. 



7. Tympano-periotic bones, pair of - articulated. Tympanic, 

 length 1§ inch, breadth i^ inch, height h inch. Periotic, 



