270 ORISMOLOGY. 
6. Ovate (Ovata). Oval, but having the ends circum- 
scribed by unequal segments of circles. Plate XX. 
Fig. 12, 13. 
7. Cordate {Cordata). Heart-shaped. Ovate or sub- 
ovate and hollowed out at the base, without pos- 
terior angles. Plate IX. Fig. 22. 
o 
8. Sagittate (Sagittata). Arrow-shaped. Triangu- 
lar, hollowed out at the base with posterior angles. 
Plate XXVII. Fig. 41. w"<. 
9. Hastate ( Hastata ). Halberd-shaped. Triangu- 
lar, hollowed out at the base and sides with the 
posterior angles spreading. — Ex. Horn of the pro- 
thorax of Di/nastcs hastatus. Postfurca in many 
Coleoptera. Plate XXII. Fig. 5. b f. 
10. Triangular; Quadrangular; Quino,uangu- 
Lar ; Sexangular ( Triangula ; Qiiadrangula : 
Quinquangida ; Sexangida). Having three, jour, 
Jive, or six angles. 
11. Turbinate (Turbinata). Top-shaped, triangular 
with curved sides. Plate XXV. Fig. 18. 
12. Ensate (Ensata). Gradually tapering till it ends 
in a point. — Ex. Ovipositor of Acrida viridissima. 
Plate XV. Fig. 19. 
13. Lanceolate (Lanceolata). Oblong and gradually 
tapering towards each extremity. — Ex. The Cerci 
in Blatta. Plate XV. Fig. 23. Q". 
14. Sigmoidal (Sigmoidea). S-shaped. Lanceolate 
and concave on one side at the base, and on the 
other at the apex. — Ex. Ovipositor of Cimbex, 
Plate XV. Fig. 21. H". 
15. Cuneate {Cuneata). Wedge-shaped. Having the 
longitudinal diameter exceeding the transverse, 
