Tissues in the Crustacean Limb. 157 
Ritzy, W. A., 08. Muscle Attachment in Insects. Annals of the Entomolog. 
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XI. DESCRIPTION OF PLATES. 
Unless otherwise indicated, all figures are from camera drawings made 
from longitudinal sections of the chelze of fourth stage lobsters. 
List OF ABBREVIATIONS. 
a, artery. 
at, a’, arteries passing through the breaking joint. 
b, blood plasm. 
be, blood corpuscles. 
bel, blood clot. 
bk, breaking joint. 
bs, basipodite. 
c, carpopodite. 
ch, chitin. 
ch‘, new chitin. 
cm, connective tissue membrane, 
ct, connective tissue. 
d, dactylopodite. 
e, epidermis. 
e*, migrating epidermal cells. 
e*, e, e*, e*, extensor mucles in the propodite, carpopodite, meropodite, and 
ischiopodite, respectively. 
ec, regenerating and proliferating epidermal cells. 
ef, Supportive fibrille. 
em, epidermal membrane. 
en, regenerating epidermal nuclei. 
i, ischiopodite. 
