| OCR Text |
Show 1883.] PROF. F L O W E R O N T H E DELPHINIDiE. 471 Fig. 1. Posterior part of the osseous palate of Globiceps melas, showing a very general arrangement of the pterygoid bones in the Belphinidce. mx. maxillary bone; pal. palatine bone; pt. pterygoid bone; r. its reflected inferior lamina, enclosing the great post-palatine air-sinus, the opening into which is o. This and all the following figures are drawn one third of the natural size. Pig. 2. Posterior part of osseous palate of Phoccena communis. The pterygoid bones are comparatively little developed and far apart. A portion of the vomer, of irregular form, is seen in the middle line, behind the palatine bones. Though generally present, this bone varies considerably in form and extent in different individuals. |
