DIAMOND-BACK TERRAPIN CULTURE 
63 
Table 32. — Rate of growth of the Carolina terrapins of the brood of 1920 
When measured 
Number 
Smallest 
Largest 
Females 
125 mm. 
or more 
in length 
Average 
length 
Number 
Smallest 
Largest 
Females 
125 mm. 
or more 
in length 
Average 
length 
May 13, 1921.. 
i 1, 994 
2 200 
Mm. 
22 
Mm. 
54 
Mm. 
31.8 
Aim. 
Mm. 
Mm. 
32 
47 
38.5 
3 50 
33 
37.5 
Sept. 24, 1921... . 
165 
35 
57 
43.8 
50 
46 
83 
59.6 
Sept. 14^ 1922 
163 
35 
73 
50.3 
Oct. 10, 1923... 
144 
40 
87 
61.3 
39 
68 
105 
83.2 
Oct. 11, 1924 
145 
45 
110 
63.0 
4 31 
76 
108 
91. 1 
Oct. 22’ 1925 
122 
52 
111 
75.7 
Oct. 1, 1926— 
121 
56 
126 
1 
84.7 
26 
76 
130 
4 
108.0 
Sept. 28, 1927: 
Males 
23 
72 
97 
\ 9 
f 84.0 
} 25 
98 
138 
116.9 
Females 
89 
61 
132 
/ 2 
\ 98.1 
1 This lot contains ail the winter-fed animals of the brood. The 2 lots listed under the next date were taken from this one. 
2 Offspring of domestic stock. 
3 Offspring of wild stock. 
4 13 males, for which no measurements are available, were removed from this lot. 
Table 33. — Rate of growth of hybrids of the 1920 brood produced by crossing Carolina 7nales with Texas 
females 
When measured 
Num- 
ber 
Small- 
est 
Largest 
Females 
125 mm. 
or more 
in 
length 
Aver- 
age 
length 
When measured 
Num- 
ber 
Small- 
est 
Largest 
Females 
125 mm. 
or more 
in 
length 
Aver- 
age 
length 
Mm. 
Mm. 
Mm. 
Mm. 
Aim. 
Aim. 
.Tunc 13, 1921 
87 
28 
50 
38.5 
Oct. 20, 1925 
63 
66 
121 
96. 1 
Oct. 3, 1921 
65 
31 
68 
48.4 
Sept. 30, 1926 
60 
82 
135 
9 
105. 1 
Sept. 14, 1922 
67 
41 
86 
63.6 
Oct. 1, 1927: 
Oct. 5, 1923 
64 
51 
115 
79. 1 
Males 
40 
85 
109 
/ 94. 4 
Sept. 12, 1924. 
64 
55 
115 
86.6 
Females.. .. . 
20 
108 
146 
I 10 
1 128.2 
Table 34. — Rate of growth of the brood of 1921 
When measured 
Number 
Smallest 
Largest 
Average 
length 
When measured 
Number 
Smallest 
Largest 
Average 
length 
Aim. 
Aim. 
Aim. 
Aim. 
Aim. 
Aim. 
May 18, 1922 
2, 101 
25 
50 
31.8 
Oct. 27, 1925. 
45 
51 
106 
78 8 
i 100 
29 
42 
34.4 
Oct. 6, 1926 
41 
79 
120 
86.0 
Sept.. 19, 1922.. 
72 
29 
48 
38.5 
Oct. 21, 1927: 
Oct. 5, 1923 __ 
40 
69 
55.3 
Males 
2 
86 
92 
89 5 
Oct. 7, 1924 
50 
46 
94 
64.4 
Females 
31 
93 
124 
108.3 
1 This lot was selected from the one listed under the preceding date. 
Table 35. — Rate of growth of the brood of 1922 
When measured 
Offspring of domestic stock 
Offspring of wild stock 
Number 
Smallest 
Largest 
Average 
length 
Number 
Smallest 
Largest 
Average 
length 
Aim. 
Aim. 
Mm. 
Aim. 
Aim. 
Mm. 
May 23, 1923 
2, 051 
23 
47 
31.9 
454 
25 
51 
33.3 
June 3, 1923 
200 
36 
47 
37. 0 
200 
36 
51 
37.2 
Oct. 24, 1924 
1 130 
36 
70 
43. 1 
> 142 
36 
72 
47. 5 
Oct. 27, 1925. 
105 
41 
84 
53.4 
99 
41 
92 
58.0 
Oct. 7, 1926... 
94 
42 
91 
62.3 
93 
44 
95 
65. 2 
Sept. 27, 1927.. 
93 
46 
106 
78.7 
93 
51 
130 
80. 6 
> This lot was selected from the one listed under the preceding date. 
