ORISMOLOGY. 273 



horizontal section is circular, and vertical lanceo- 

 late. Ex. Abdomen of Cynips aptera. 



4. OVALIFORM (Ovaliformis). Whose longitudinal sec- 



tion is oval, and transverse circular. PLATE XX. 

 FIG. 6. 



5. ELLIPSOID (Ellipsoidea). Whose longitudinal sec- 



tion is elliptical, and transverse circular. PLATE 

 XX. FIG. 19. 



6. OVIFORM (Oviformis}. Whose longitudinal section 



is ovate, and transverse circular. PLATE XX. 

 FIG. 12, is. 



7. CUCUMIFORM (Cucumiformis}. Cucumber-shaped. 



Whose longitudinal section is oblong, and trans- 

 verse circular. PLATE XX. FIG. 18, excluding 

 the neck. 



8. COKDIFORM (Cordiformis). Oviform and hol- 



lowed out at the base without posterior angles. 

 PLATE IX. FIG. 22. 



9. CONICAL (Conica). Whose vertical section is trian- 



gular, and horizontal circular. Ex. Abdomen of 

 Ccelioxys conica (Apis * * b. K.). PLATE XX. 

 FIG. 7. 



10. TURBINIFORM (Turbiniformis). Whose vertical 



section is turbinate, and horizontal circular. Ex. 

 Joints of antenna of Aleochara socialis, and many 

 others of that genus. 



11. PYRAMIDAL (Pyramidalis). Whose vertical section 



is triangular, and horizontal quadrangular. 



12. CUNEIFORM (Cuneiformis}. Whose vertical section 



is cuneate, and horizontal parallelogramical. 



13. TRIQUETROUS (Triquetra}. Whose horizontal sec- 



tions are equilateral triangles. PLATE XL FIG. 6. 



VOL. IV. T 



