504 | Charles Zeleny 
be to retard or accelerate this rate without any influence upon the 
total amount regenerated. Thus it may be accompolished in 
two fifths or three-fifths of the period of the molt which would 
TABLE 15—PaLAEMONETES VULGARIS STIMP. 
Comparison of the second regeneration of one chela with the first regeneration of the opposite chela. 
Individuals arranged in order of thoracic length. 
SECOND REGENERATION 
FIRST REGENERATION 
FINAL THORACIC 
LENGTH MMS. Side of bady Length of _ 
. propodite 
ieD right 1.93 
8.9 left 1.45 
9.5 left 1.32 
9.8 right 1.93 
9.9 right 1.96 
9.9 left 1.63 
9.9 right 2.40 
10.0 left 2.07 
10.0 right 1.78 
10.0 right 2.71 
10.1 right 2.20 
10.1 left 2.51 
10.2 left 2.29 
10.2 right 2.21 
10.4 left 2.35 
10.7 left 2625 
10.7 right 1.70 
10.9 left ae} 
1.0 right 1.96 
II. right 2.60 
II.0 right 2.64 
II.0 right 2.71 
11.1 left PEP 
Dien right 2.22 
11.2 right 2.59 
Tilers left 2.20 
11.5 left 2.50 
12.0 right 2.67 
13.0 left 2.25 
rah2 left 2.27 
13.6 right 2.97 
NVA NG stetePan Gola pav fase Serane chai ete ieiottce Nels 2.20 
IDEAS AES ooddon bones DOFNGaDBOGE ue BOG 1p Hee) 
Percentotiditierence sc). sii eerie in ei sive ¢ +1.4 
Length of pod "Side of bo dy 
propodite 
1.93 left 
1.67 right 
Tage right 
1.89 left 
1.87 left 
1.67 right 
2.39 left 
2.02 right 
1.78 left 
2.71 left 
2.19 left 
2.43 right 
2.27 right 
2.20 left 
2.30 right 
2.27 right 
1.62 left 
1.65 right 
2.07 left 
2.48 left 
2.52 left 
2.63 left 
2.17, right 
2.12 left 
2.35 left 
2.22 right 
2.41 right 
2.65 left 
227) right 
2.26 right 
2.88 left 
2.17 
