338 ORISMOLOGY. 



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 9 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. 

 Crabro clypeatus, scutatus, &c. <$. PLATE XV. 

 FIG. 3. a. 



2. PALMATE (Palmatus). When towards the apex the 



cubit is armed laterally with several divaricate 

 spiniform teeth. Ex. Scarites, Clivina. PLATE 

 XV. FIG. 5. 



3. DIGITATE (Digitatus}. When" the apex of the cu- 



bit is divided into several long teeth or fingers. 

 Ex. Gryllotalpa. PLATE XV. FIG. 6. 



4. DOLABRATE (Dolabratus}. When the apex of the 



cubit is dilated and shaped something like the 

 head of a hatchet. PLATE XV. FIG. 4. 



ft. HAND (Manus). 



1 . PATELLATE (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. Dytiscusg, Staphyli- 

 nus. PLATE XV. FIG. 9. 



2. SCUTATE (Sariata). When a single joint of the 



