ORISMOLOGY. 30.9 



XVI. ARMS. 



1 . TOOTH (Dens). A short flattish process, somewhat 



resembling a tooth. 

 C 2. HORN (Cornu). A longer process, resembling a 



horn. 



a. LAMINATE HORN (Cornu laminatum). A horn di- 



lated at its base into a flat plate. Ex. Onthopha- 

 gus nutans. 



b. NODDING HORN (Cornu nutans}. When a horn 



bends forwards.- Ex. Onthophagus nutans. 



3. SPINE (Spina). A fine, long, rigid, pointed process. 



Ex. Those on Elytra of many Hispcc, and the 

 Posterior Tibice of Locusta. 



4. MUCRO (Macro). A short, stout, sharp-pointed 



process. Ex. Elytra of Lixus paraplecticus. 



5. SPUR (Calcar). A spine that is not a process of the 



crust, but is implanted in it. Ex. Those on the 

 lower side of the Tibia of Acrida. 



XVII. APPENDAGES. 



1. AURICLE (Auricula). An appendage resembling an 



ear. Ex. Thorax ofLedra aurita. 



2. CARUNCLE (Caruncula). Having fleshy excrescences 



somewhat resembling the caruncles of birds. Ex. 

 Prothorax of Malachius. 



XVIII. MOTION. 



1. VERTICAL (Verticalis). When it is up and ddwn. 



2. HORIZONTAL (Horizontalis). When it is from side 



to side. 



