No. 2311. WHALES OF THE GENUS PSEUD ORG A— MILLER. 



207 



Measurements of skulls of Pseudorca. 



Locality. 



Number. 



Condylobasal length 



Basal length 



Occipital crest to tip of beak 



Rostrum 



Tip of beak to nares 



Posterior tooth to apex of maxillary notch. 

 Breadth of beak between maxillary notches. 

 Breadth of beak at level of posterior tooth . . 

 Greatest breadth of single intermaxillary .. 



Least breadth of single intermaxillary 



Interorbital breadth 



Glenoid breadth 



Depth of brain case behind nares 



Occipital depth 



Depth of rostrum at level of posterior tooth . 

 Depth of rostrum at middle of tooth row.. . 



Mandible 



Co ronoid -angular depth 



Depth of mandible at level of posterior tooth . 

 Depth of mandible at middle of symphysis. 



Maxillary tooth row (alveoli) 



Mandibular tooth row (alveoli) 



Sixth upper tooth: 



Greatest height 



Greatest diameter. 



Peru. 



3679 



225 

 65 

 55 



57 



47 



525 



150 



67 



46 



225 



230 



Height from base of enamel 36 



' 22 

 Diameter at base of enamel { bv 



25 



Lower 

 Cali- 

 fornia. 



23282 



600 

 590 

 510 

 278 

 360 

 60 

 195 

 188 



323 

 362 

 193 



228 



Vene- 

 zuela. 



20932 



540 

 585 

 490 

 270 

 345 



50 



180± 

 190± 



51 



51 

 290± 

 327 

 183 

 210 



43 



38 



220 



Florida. 



218360 



590 

 570 

 485 

 270 

 343 



54 

 187 

 194 



54 



48 

 304 

 348 

 197 

 216 



49 



42 

 465 

 133 



60 



33.5 

 227 

 210 



84.5 

 22.6 



by 



20.4 

 20± 

 15 

 by 

 14.4 



"N.E. 

 Coast." 



11320 



620 



610 



545 



300 



385 



63 



210 



215 



59 



57 



338 



377 



205 



223 



56 



45 



No 

 history. 



230 



92 ± 

 23 



by 



27 



28 



17.6 



bv 



19 



219325 



595 



580 



535 



295 



380 



58 



177 



174 



46 



50 



300 



352 



190 



218 



48 



43 



495 



137 



60 



36 



225 



225 



EXPLANATION OF PLATES. 

 All figures about one-fourth natural length. 



Plate 27. 

 Pseudorca crassidens. Florida. Dorsal view of skull. 



Plate 28. 

 Pseudorca crassidens. Florida. Ventral view of skull. 



Plate 29. 

 Pseudorca crassidens. Florida. Lateral view of skull. 



Plate 30. 

 Pseudorca crassidens. Florida. Mandible from above . 



Plate 31. 

 Pseudorca crassidens. Florida. Mandible from side. 



