DIAMOND-BACK TERRAPIN CULTURE 
61 
Table 26. — Rate of growth of the brood of 1914 
When measured 
Number 
Smallest 
Largest 
Females 
125 mm. 
or more 
in length 
Average 
length 
Remarks 
Aim. 
Mm. 
Mm. 
May 24, 1915 
351 
25 
48 
32.9 
Fed fresh fish. 
Do-_ 
376 
24 
45 
31.5 
Fed salt fish first winter. 
Aug. 25, 1915... 
284 
27 
67 
42.2 
Fed fresh fish. 
Do 
303 
28 
69 
41.6 
Fed salt fish first winter. 
Do 
100 
49 
69 
54.2 
Selected 100 best from preceding lots. 
Sept. 20, 1916 
97 
58 
93 
70.3 
Oct. 11, 1917 
88 
63 
115 
81.6 
Oct. 3, 1918 
91 
75 
126 
1 
93.2 
Two males present in lot but they were not 
kept separate in measurements and therefore 
their size can not be shown. 
Oct. 2, 1919 
91 
76 
133 
2 
96. 1 
Oet. 13, 1920 
91 
76 
138 
9 
101.3 
Dec. 12, 1922 
92 
79 
144 
19 
114.0 
Oct. 10, 1923 
97 
87 
146 
27 
116.6 
Oct. 21, 1925 
85 
84 
149 
34 
121.3 
Table 27.— Rate of growth of the brood of 1915 
When measured 
Num- 
ber 
Small- 
est 
Larg- 
est 
Females 
125 mm. 
or more 
in 
length 
Aver- 
age 
length 
When measured 
Num- 
ber 
Small- 
est 
Females 
Larg- I2Sm 
PQt 6 or more 
esl i in 
length 
Aver- 
age 
length 
Mm. 
Mm. 
Mm. 
Mm. 
Mm. 1 
Mm. 
Mar. 15, 1916 
i 613 
24 
40 
29.9 
Oct. 15, 1918. 
435 
35 
112 
60 3 
Mar. 16^ 1916 
3 662 
25 
51 
33.8 
Oct. 8, 1919 
395 
38 
122 
65 6 
Aug. 24,’ 1916. 
586 
29 
76 
44.8 
Oct. 8, 1920..- 
338 
41 
134 2 
6Q 4 
Oet. 13,' 1917 
475 
32 
94 
50.8 
June 23, 1921 
303 
47 
127 : l 
69.9 
1 This lot was fed on salted fish during the winter of 1915-16. After these measurements were taken it was discarded. 
2 This lot was fed on fresh fish during the winter of 1915-16. All subsequent measurements are based on this lot. It was 
discarded after the last measurements listed in the table were taken. 
Table 28. — Rate of growth of the brood of 1916 
When measured 
Offspring of wild brood stock 
Offspring of domestic stock 
Number 
Smallest 
Largest 
Females 
125 mm. 
or more 
in length 
Average 
length 
Number 
Smallest 
Largest 
Females 
125 mm. 
or more 
in length 
Average 
length 
Aim. 
Aim. 
Mm. 
Aim. 
Mm. 
Aim. 
May 25, 1917 
1, 040 
23 
80 
39.2 
670 
24 
62 
82 6 
Oct. 4, 1918 
i 120 
47 
104 
70.6 
1 81 
47 
83 
62 2 
Oct. 9, 1919 
99 
2 45 
116 
74.4 
96 
3 45 
85 
Oct. 8, 1920 
99 
2 42 
123 
75.5 
95 
47 
92 
66 8 
Sept. 24, 1921.... 
99 
56 
133 
1 
82.6 
88 
53 
103 
73 7 
Sept. 13, 1922 
103 
69 
136 
4 
91.4 
92 
69 
120 
85 2 
Oct. 5, 1923 
100 
74 
138 
4 
97.2 
91 
71 
135 
2 
93.0 
Sept. 12, 1924 
100 
77 
139 
6 
101.9 
95 
73 
2 130 
2 
95.5 
Oct. 20, 1925. 
93 
78 
140 
7 
103.3 
95 
74 
132 
5 
98.0 
Oct. 1, 1927: 3 
Male.. 
18 
81 
102 
f 89.3 
22 
78 
101 
1 
f 90.7 
Female 
82 
92 
141 
\ 119. 4 
76 
83 
141 
> 33 
{ 116. 4 
1 This lot was selected at 1 year of age from the lot listed above. 
2 The apparent decrease in size probably is due to closer measurements or to the probability that the same terrapins were not 
measured each year, for all the animals in a pen often are not found. 
3 The measurements of the sexes were not definitely kept separate prior to this date. 
