ORLSMOLOGY. 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, 13. 
7. Cucumiform (Cucumiformis). Cucumber-shaped. 
Whose longitudinal section is oblong, and trans- 
verse circular. Plate XX. Fig. 18, excluding 
the neck. 
8. Cordiform (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 antennce of Aleochara socialis, and many 
others of that genus. 
11. Pyramidal (Pj/ramidalis). 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 XI. Fig. 6. 
VOL. IV. T 
