544 
Cambaru bartoni. 
Charles Zeleny 
TABLE 14 
Nos. 2218-2267. Regeneration of a single removed chela. 
Molts 4-6. The right chela was removed in all except No. 2242 
Younger crayfish. 
CEPHALO-THORACIC fie 28 | | 
| | | | LENGTH | SPECIFIC 
CATAL INTERVAL toe iesoeeat.* REGEN-| AMOUNT 
Deak oe At aN DARBY ie _ | THORACIC) y paTING |OF REGEN- 
NUMBER | Molt | Molt Molt | LENGTH ee ee 
4 5 6 Molts 4-5 
2218 4-5-6 23 6.2 7.0 || “626, ie eer 0.44 
2219 4-5-6 26 6.2 8.2 | 6.6 an5 0.53 
2223 4-5-6 23 6.0 Bio! gly oes als 0.54 
2227 4-5-6 20 “lo 6.8 3.6 0.53 
2238 4-5-6 23 6.3 7-4 8.1 6.8 3.6 0.53 
’ 2239 4-5-6 31 6.5 7.0 Wie 6.7 3.2 0.48 
2248 4-5-6 24 6.4 7.0 6.7 ALi 0.46 
2252) |) A—5-6 28 6.4 ice 8.2 6.8 2 -5oe a Ombtaes 
2259 4-5-6 19 6.1 fot 8.1 6.6 3.0 0.45 
2262 | 4-5-6 19 70 8.3 GR. eienemer 0.45 
2242 4-5-6 20 6.4 7-4 SX: Tam i 0.45 
ZANY eka he\a| ayeletetoleetens 23.3 6.28} 7.16 | 8.09 6.68 3-26 0.488 
| 
SPECIFIC 
| RATE OF 
| REGENER- 
ATION 
o19 
020 
023 
0265 
023 
O15 
O15 
o18 
024 
024 
0225 
GF OO FO XO5O! AO OWwO). JO45'O 
-O210 
The molt numbers indicate the number of molts since hatching. There is a chance for error because 
the crayfish eat their casts. 
The specific amount is the amount regenerated per unit of cephalo-thoracic 
length. The specific rate is the specific amount per day. The ‘‘chela lengths” are the lengths of 
the propodites. 
TABLE 15 
Cambarus bartoni. Nos. 2218-2267. Regeneration of the chele when both are removed at one time. 
Younger crayfish. Molts 4-6 
f i | 
| | AVER- 
CEPHALO-THORACIC | | LENGTH OF REGENER- | SPECIFIC 
CATA- | | INTER- | LENGTHS Renae ATING CHELAE AMOUNT 
CEPHA- 
LOGUE | MOLTS | VAL IN OF 
= |L0-TH0-)— > =ani eae = 
NUMBER | DAYS face hee re | “A | REGEN- 
| poem ee weed | sae ecg FS: | Right Average ERATION 
4 5 | 6 (LENGTH 
| | | | = 
| | | | 
2237 | 4-5-6 | 27 6.6 slhng6" || 856 ean 42 || ee eae non 
2245) |\ea—5—60 | 26 6.6 F)2 sail OeS 6.9 4.0 4.0 4.0 0.58 
2253 9) A—c—6, ||| 20 Ghz Wal B30) V6.7 1 get 3.0 3-05 | 0.46 
| | 
| | | 
| | | 
AVETAPE! icaialete ore Weta 6.47 eT aat hl Bed, | 6.9 3:77 | 3:73 | 3-75 |" ©5438 
| | | } 
SPECIFIC 
RATE OF 
REGEN- 
ERATION 
0.022 
0.022 
0.023 
0.0223 
