oniSMOLOGY. 358 
4. Polypod (Polypus). Having more than eight legs 
but under \fifty. — Ex. Glomeris, Cermatia. 
5. Centipede (Centimes). Having more them Jjfty legs 
but under two hundred. — Ex. Scolopendra. 
6. Myriapod (Myriapus). Having two hundred legs 
or more. — Ex, Iidus. 
B. Situation. 
1. Antepectoral (Antepectorales). The fore-legs or 
arms, affixed to the Antepectus. 
2. Medipectoral (Medipcctorales). The mid-legs, 
affixed to the Medipectus. 
3. Postpectoral (Postpectorales). The hind-legs, af- 
fixed to the Postpectus. 
4. Distant (Distantcs). When the pairs of legs are 
remote from each other at their base. — Ex. Inter- 
mediate legs of Copris. 
5. Approximate (Approximati). When they are near 
each other at the base. — Ex. Posterior legs of Co- 
pris, 
6. Equidistant (2Equidista?ites). When all the three 
pair are equally distant at the base. — Ex. Cassida. 
C. Duration. 
1. Persistent (Persistentes). Legs which the insect 
has in all its states. — Ex. The legs attached to 
the trunk. N.B. TJiese are called Legs (Pedes). 
Plate XVIII. Fig. 11. a. 
2. Deciduous (Decidui). Legs which the insect has 
not in all its states. — Ex. Membranous legs of Ca- 
terpillars. Plate XVIII. Fig. 11. b. N.B. These 
are called Prolegs (Propcdcs). 
vol. iv. 2 a 
