ORISMOLOGY. 
.30.9 
XVI. ARMS. 
1. Tooth (Dens). A short flattish process, somewhat 
resembling a tooth. 
2. Horn (Comu). A longer process, resembling a 
horn. 
a. Laminate Horn (Comu laminatum). A horn di- 
lated at its base into a flat plate.-Ex. Onthopha- 
gus nutans. 
b- Nodding Horn (Comu nuta?is). When a horn 
bends forwards.— Ex. Onthophagus nutans. 
3. Spine (Spina). A fine, long, rigid, pointed process. 
—Ex. Those on Elytra of many Hispa, and the 
Posterior Tibia of Locusta. 
4. Mucro (Mucro). 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. 
I. Auricle (Auricula). An appendage resembling an 
ear.— Ex. Thorax ofLedra aurita. 
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 down. 
2. Horizontal (Horizontal). When it is from side 
to side. 
2. 
