176 HANDBOOK OF INVERTEBRATE ZOOLOGY. 



(i.) The protopodite {p) is obscurely divided into two 

 joints. The proximal one, articulating with the sternal 

 plastron, is known as the coxopodite (c) and the distal one 

 as the hasipodite (b). The protopodite carries, besides the 

 exopodite and the endopodite, a long, hairy process, the 

 Jlabellum, or epipodite (Fig. 92, f). In order to expose 

 the flabellum, the appendage must be removed from the 

 body. 



(ii.) The exopodite, (Fig. 92, ex), is long and slender, 

 and divided into two portions, the distal one being ob- 

 scurely many-jointed. 



(iii.) The endopodite (Fig. 92, en), is divided into two 

 regions, a proximal, greatly flattened, two-jointed region, 

 or gnathostegite, and a terminal, three-jointed, slender, 

 finger-like process, the endognathal palp. 



(iv.) The large, flattened, basal joint of the gnathoste- 

 gite (Fig. 92, is), is the ischiopodite, and the smaller 

 terminal joint (m) is the meropodite. 



(v.) The basal joint (c) of the endognathal palp, is the 

 carpopodite; the middle joint {pr) the pi'opodite, and 

 the terminal joint (d) the dactylopodite. 



2. The Pereiopods. 



The five pairs of legs, or pereiopods, are quite similar 

 in structure. Each consists of a two-jointed protopodite, 

 and a long, five-jointed limb, or endopodite ; the exopo- 

 dite being absent. The seven joints which make up the 

 limb are then the basipodite (Fig. 91,^) [see foot-note 

 on p. 174], coxopodite {ex), ischiopodite {is), meropc^- 

 dite (w), carpopodite (c), propodite {p), and dactylopo- 

 dite {d). The joint between the second and third por- 

 tions, the ischiopodite, and coxopodite, admits of very little 

 motion, and the two pieces are almost fused with each 

 other. 



