584 
Cambarus propinquus. Nos. 
2 
Charles Zeleny 
TABLE 12 
2309-2378. Right chela removed 2 days after 4th molt 
m 
S 
i e 
ial 
z : 
: : 
: : 
° - 
Pa) an oo ol 
< 1d n oO 
< is Sales 
1S) a = a 
2319. St | 46 | 22() 
2325 of 4-6 15 
2331 ro 4-6 12 
2338 GS P46 | 13 
2339 Sons, | 85 
2354 2 | 246 | 14 
2358 ce) 4-6 12 
2364 of 4-6 14 
[:MGSRE® co SOB OG oSnOOGODT 14.6 
(APPROX.) 
CEPHALO-THORACIC LENGTH, 
4TH MOLT. 
5-4 
é 
- I 
ze a 
& 5 
g a 
le 
g 5 
S Z 
z z 
ae eee 
fees 
ele aaa 
ol | 
s El EE 
v 4 
7-03 3.55 
5.97 3.18 
6.47 | 3.40 
6.51 | 3-60 
62235) 3.09 
(ely | chet 
6.59 | 3-03 | 
6.81 | 2555 
| 
3233) 
6.52 | 
LENGTH OF REGENERATED 
RIGHT CHELA, 6TH MOLT 
t 
1 
x 
a 2 gan 
Zz a eS 
g Zz HZ 
E> ete ae 
% a as 
fe a Z 
° fe spas 
Bice alee 
A ia m a < 
S < & aR 
a % Oo fm O 
Ode eae Meee et ced 
S| E zeae 
O ea ore On mee 
at oS [a Oe 
Lond ay a 
na n co 
0.33 |. 0.015 | 0.65 
0.34 | 0.023 | 0.64 
0.28 | 0.023 | 0.52 
0.83) | :0F025)) somso 
0.35 | 0.023 | 0.70 
0.32 | 0:023 | 0.65 
0.31 | 0.026 | 0.67 
0.35 | 0.025 | 0.67 
0.326] 0.0229 0.636 
wd 
BE 
38 
a 
ge & 
HO 
z 
a 
APs 
9 a 
Ax om 
Sa) 
foe] a 
aw A 
o 2 & 
gar 
r=} 
GO! 0 Mo! oO) DO) 1G) 6) vo 
ee 
nn 
0.045 
Table 12. In all chela measurements in this and the following tables ‘‘chela length” means the 
greatest length of the propodite. The specific amount of regeneration is the amount per unit of ceph- 
alo-thoracic length. The average length of the right chela in a control series of 17 unoperated indi- 
viduals was 3.41 mm. at the sixth molt. 
TABLE 13 
Cambarus propinquus. Nos. 2391-2483. Right chela removed one day after fo 
urth molt 
| 
|e 
i 
| 
i 8 
i-s) | | 
Z |g 
S | 
5 | 5. 
4 n ices | 
< a | » Oo 
g i 3 pei 
3) a Senna 
— 
2402 g 4-6 | 14 
2406 of 4-6 | 1) 
2409 of 4-6 13 
2412 ofl 4-6 | 13 
Sas ree) ||) 4-0) 16 
2477 Pca Ort 05 
SVU ARGanateterefetatelen ra teiehets | 13.8 | 
(appRox.) 
CEPHALO-THORACIC LENGTH, 
Anan nn 
Ww WWW WH Ww 
4TH MOLT 
| 
| 
| 
| 
CEPHALO-THORACIC LENGTH, 
6TH MOLT 
LENGTH OF UNINJURED CHELA, 
6TH MOLT 
t 
4 
z 
a §/ a 
a sot ae 
Bess 
= fe 
& 
& | 0 
Z 
ae 
Ss oS 
Se S 
m 
5 3) < 
ES mas 
2 x & Oo 
Be | aoe 
zm} a < 
I a 
1.67 |; 0.25 
T8245) N'O.27 
1.64 | 0.24 
1.70 | 0.24 
2.13 | 0.30 
2).20)|| (0.33 
| 
1,000] Os27 
SPECIFIC RATE OF REGENER- 
ATION 
| 
° 
° 
0.018 
0.018 | 
° 
° 
-O22 } 
0.0195) 
mA 
me |G 2 
Oo & par 
5 Zz 
an » 
Aw a 
Bow on 
<2 HO 
“#5 |< 
z ag 
So |22 4 
AD A 
| 8 ., Onan 
me Axe oO 
& wz me 
ec a (2 
mo Alm 
~ 8 > 
Saro<5 
zZemOoZARE 
a a 
4 4 
0.46 | 0.033 
0.54 | 0.045 
0.47 | 0.036 
0.44 | 0.031 
0.57 | 0.036 
0.62 | 0.041 
es nena 
0.52 | 0.037 
Table 13. The average length of the right chela in a control series of 18 unoperated individuals 
was 3.52 mm. at the sixth molt. 
