ORISMOLOGY. 329 
2. UnarmMep (Inerme). When it has no prosternum. 
Ex. Curculio'L. 
3. ARMED (Armatum). When it has a prosternum. 
N.B. These two last terms may be extended also to 
the Medipectus and Postpectus. And also to the 
whole together. Thus, if there was no Sternum at 
all, it should be called Pectus inerme; and if one 
existed in all these divisions of the breast, it would 
be Pectus armatum. 
c. ARM (Brachium). 
a. cuBIT (Cubitus). 
1, CLYPEATE (Clypeatus). When a concavo-convex 
plate is affixed to the outside of the cubit. Ex. Cra- 
bro clypeatus, scutatus, &c.3. Puate XV. Fie. 
Son 
2. Patmate (Palmatus). When towards the apex the 
cubit is armed laterally with several divaricate 
spiniform teeth. Ex. Scarites, Clivina. PLATE 
XV. Fic. 5. 
3. Diertate (Digitatus). When the apex of the cu- 
bit is divided into several long teeth or fingers. 
Ex. Gryllotalpa. Prats XV. Fie. 6. 
4. DoLasrateE (Dolabratus). When the apex of the 
cubit is dilated and shaped something like the 
head of a hatchet. Pratt XV. Fia. 4. 
8. Hand (Manus). 
1. PareuaTe (Patellata). When several joints of the 
hand are dilated so as.to form an orbicular patella 
furnished underneath either with suckers, or a 
dense brush of hairs. Ex. Dytiscus 3. Staphyli- 
nus. PLare XV. Fie. 9. 
