322 ORISMOLOGY. 



vii. CANTHUS. 



1. ENTERING (Intrans). When the Canthus takes a 



, little angle or sinus out of the eye. Ex. The Ca- 

 pricorn beetles, Mylabris. PLATE VI. FIG. 1. h'. 



2. CLEAVING (Fmdens). When the Canthus cleaves the 



eye half through of more. Ex. The Petalocerous 

 beetles. 



3. DIVIDING (Dividens). When the Canthus passes 



. right through the eye and divides it into two. 

 Ex. Gyrinus, Tetraopes. a PLATE XXVI. FIG. 36. 

 4-. SEPTIFORM (Septiformis). When the Canthus forms 

 an elevated ridge or septum. Ex. Many Petalo- 

 cerous beetles. 



viii. EYES (Ocuii). 



1. SIMPLE (Simplices). Eyes which do not consist of 

 an aggregate of hexagonal lenses. Ex. Araneidcc, 

 Scorpio, Phalangium, PLATE VII. FIG. 9. h. 



a. SCATTERED (Sparsi}. When simple eyes are sepa- 



rate from each other and not arranged in a certain 

 order. Ex. Eyes of Caterpillars, and some Scolo- 

 pendrce. 



b. ORDINATE (Ordinati}. When simple eyes are ar- 



ranged in a certain order. Ex. Araneidea. PLATE 

 XXVI. FIG. 37. 



c. CONGLOMERATE (Conglomerati). When a number of 



simple eyes are collected together so as to exhibit 

 the appearance of a compound one. Ex. lulus. 

 PLATE XIII. FJG. 11. 



d. DORSAL (Dorsales}. When they are placed on the 



a Germ. Insect. Spec. 486. 



