ORISMOLOGY. 303 



less wide, which attends the edges, and is usually 

 produced by its reflexion. 



10. EDGE (Acies). The extreme termination of the 

 margin. 



IX. TERMINATION. 



1. SUMMIT (Fastigium). The tip or extreme termina- 



tion of the upper part. 



2. APEX (Apex). The top or upper termination of any 



part. 



3. BOTTOM (Fundus). The extreme termination of the 



lower part. 



4. BASE (Basis). The lower termination of any part. 



5. ACUTE (Acuta). Terminating in an acute angle. 



PLATE XV. FIG. 17. 



6. OBTUSE (Obtusa). Terminating bluntly, but within 



the segment of a circle. PLATE XIV. FIG. 1. f. 



7. ROTUNDATE (Rotundata). Terminating in the seg- 



ment of a circle. PLATE VI. FIG. 1. e. 



8. TRUNCATE (Truncata). Terminating in a trans- 



verse line. PLATE XIII. FIG. 5. a'". 



9. PREMORSE (Prcemorsa). Terminating in an irre- 



gular truncate apex, as if bitten off. Ex. Elytra 

 of Lebia, Dromia, Lomechusa, &c. 



10. RETUSE (Retusa). Terminating in an obtuse sinus. 



Ex. Back part of the Head in Cimbex. 



11. EMARGINATE (Emarginata). When the end has 



an obtuse notch taken out. Ex. Nose of Pedinus 

 arenosus. 



12. EXSCINDED (Excisa). When the end has an angu- 



lar notch taken out. Ex. Nose of Opatrum sa- 

 lulosum. 



