Effect of Age upon Regeneration 591 
TABLE 23 
Palemonetes vulgaris. Nos. 1755-1805. Regeneration of the chele in individuals 7.2 to 13.6 mm. 
in cephalo-thoracic length 
| 
" aeeeleee | FIRST MEASURE- | FINAL MEASUREMENT 
BN eae 8 § | OF orIGI-. MENT 
Bel BZ ¢ R NAL RE-- | aaa ——— 
om oF oe MOVED | 
< S / id ; os cuera Length of Length of First regeneration | Second regeneration 
3 e | z e < a ete eer '| uninjured| regener- |___, eee eet be Le a 
a | og. | Be MSH) chela hee chela Length ISp. amt. | Length | Sp. amt. 
1777, (21 | Fisk 12.01 2.06 | 1.25 1.93 0.27 1.93 0.27 
1771 TQ | SQ E277 2.83 2.19 1.45 0.16 1.67 0.19 
1765 3.) esa) 279 2.85 1.61 1.32 0.14 tee} 0.14 
T7790 127 |e gS | 12.69 2.98 2.38 1.93 0.20 1.89 0.19 
T7SSe LOwe eo. O). | 270 2.83 | 1.75 1.96 | 0.20 1.87 0.19 
ge || ft | og. 12.83 3-14 1.93 1.63) |) 10.16 1.67 0.17 
1791| 17 | 9.9 | 12.96 3-06 2.43 2.40 | 0.24 2.39 0.24 
1761 | 11 TOVO! | 2687 Bee 1.99 2.07 0.21 2.02 0.20 
TeOMee FD | | OL) |) vligems S528 2.38 1.78 | 0.18 1.78 0.18 
1789 18 | 10.0 13.18 Be43 2.76 Peg fi 0.27 PP 0.27 
TOs | TA | TO.T laeae 3-14 2.09 2.20 0.22 2.19 0.22 
ior; 14 | 10.1 | 13.14 3-14 | 2.27 2.51 0.25 2.43 0.24 
1757 17 ele LOS2> 2701) | aor 2.29 2.29 | | 0.22 2.27 0.22 
1776| 16 | 10.2 12.94 3-10 2ua7. | 2.2% @.22) ||" 2.20 0.22 
1759 16 | 10.4 | 12.67 2.93 2.47 |) aah eases 2.30 0.22 
1763 17° | 1037) |e Daca Sy | egeae 2.66 | 2.25 0.21 2.27 0.21 
1787 a, ee 12.98 arly Decay ile leo 0.16 1.62 0.15 
1768 10 li e.g (13-22 | 3.33 2.63 | 1.73 0.16 1.65 0.15 
Hiya 11-0) | 13-43 3-45 2.16 1.96 0.18 2.07 0.19 
1784 17 mo “| lig.90) |" » 3.719 2.40 | 2.60 0.24) || 2-48 0.23 
1785| 15 | 11.0 | 12.98 | 3.16 2.35 2.64 0.24 Zo 0.23 
1797 17 imieey || Melee 353 2.72 2e7t 0.25 2.63 0.24 
1766 17 Dial E2211 2.45 1.78 Dea 0.20 2k 0.20 
Wages (| bkwer 13.06 3-38 2.67 2.22 0.20 2.12 0.19 
1781 13 t2, | 14533 4.40 | 2.09 2.59 O25} zea 5 0.21 
1762 | 16 nee |p ieee |) hays 2.709 aaZo 0.19 2.22 0.19 
1767 | 14 6a ie ea er 2.72 | 2.50 0.22 2.41 0.21 
1786 15 aber gees \ |) yze72, 2.67 2.67 0.22 2.65 0.22 
1770 | 12 13.0 |) 64.59 4-44 2.01 2.25 0.17 Deki 0.17 
1773 | 12 132 |) rig s65 ARGS Rice ie Af dy 0.17 2.26 0.17 
1804 | 20 13.6 I 4.92 4.89 3-10 2.97 0.22 2.88 0.21 
Average| ....... 8 i Se AERP Eraser Sys | 2.20 | 2.17 
Table 23. The individuals are arranged in order of final cephalo-thoracic length. The specific 
amount (sp. amt.) of regeneration is the length of regenerated chela propodite per unit of cephalo- 
thoracic length. 
