C. L. Edwards 243 
TABLE V. 
3. Volume in cm.^ v = '^^^ 
Adult 
Young 
Number of Specimens 
Mean 
Standard Deviation 
Coefficient of Variation ... 
Range of Variation 
73 
209-584 + 13-185 
167-025+ 9-323 
79-679+ 4-450 
51-04—884-64 
45 
12-506+ -645 
6-511 ± -463 
52-076 + 3-701 
•26—45-85 
B. Development and Growth. 
During the summer of 1888 I reared the young of this species at Green Turtle 
Cay, Abaco, Bahamas, (Edwards, 1889)*. During the first 5 days the embryo 
TABLE VI. 
Age in 
Number 
of 
Specimens 
Length 
Average 
Diameter 
mm. 
Volume cm.-* 
5 
3 
-33 
•28 
•0102 
7 
3 
•31 
•25 
•0076 
9 
3 
•30 
•27 
•0086 
10 
3 
•27 
•27 
•0077 
11 
6 
•40 
•26 
•0106 
12 
6 
•42 
•24 
•0095 
13 
3 
•47 
•23 
•0097 
14 
8 
•41 
•20 
•0064 
15 
3 
•37 
•18 
•0046 
18 
8 
•34 
•30 
-0120 
19 
3 
•34 
•33 
-0145 
20 
3 
•42 
•30 
-0148 
22 
6 
•36 
•32 
-0145 
24 
2 
•50 
•32 
•0101 
30 
3 
l-OO 
•48 
•0905 
33 
1 
•45 
•1113 
40 
2 
r65 
•65 
•2737 
42 
2 
2^00 
•68 
•3632 
45 
3 
1^70 
•93 
•5773 
49 
2 
2-30 
•68 
•4176 
51 
2 
2^10 
•90 
•6680 
53 
3 
2-05 
•72 
•4173 
55 
2 
2-30 
•85 
•6525 
67 
1 
2-30 
•90 
•7316 
71 
2 
2-95 
•95 
1 ^0454 
75 
2 
4-00 
•95 
V4175 
87 
2 
2-30 
•75 
•5080 
88 
2 
1-95 
•85 
•3726 
* The erroneous identification of this Holothurid with MiiUcria agassizii Selenka, was made, without 
reference to the taxonomic literature, from the label of a specimen in the biological museum of the 
Johns Hopkins University. Table I. in the present paper shows that three individiials were thus 
identified in the Harvard collections. Naturally such errors are due to the most superficial exami- 
nation. 
31—2 
