158 Victor E. Emmel. 
ic, inward proliferation of epidermal cells to form connective tissue. 
in, invagination of epidermal cells at the joints 
m, muscle crossing the breaking joint. 
ma, muscle attachment. 
mb, muscle in the basipodite. 
me, meropodite. 
mf, myofibrille. 
mn, muscle nuclei. E 
mp, chitinogenous muscle plate or tendon. 
mt, cells undergoing mitotic division. 
n, nerve. 
nt, n2, nerves passing through the breaking joint. 
nf, neurofibrille. 
ng, nuclei of the “Grenzlamelle.” 
nn, nuclei of the neurilemma. 
p, propodite. 
m, 7, 73, flexor muscles in the propodite, carpopodite, and meropodite, re- 
spectively. 
rt, cyto-reticulum. 
s, septum of connective tissue dividing venous blood sinus into two channels. 
sa, sarcolemma. 
v, valves in venous blood channels. 
v, valves in venous blood channels; v', v*, inner and outer channels, respect- 
ively. 
ve, venous blood channel. 
vs, yenous sinus; vs', vs?, respectively distant and proximal of the breaking 
joint. 
