i88 7 .] 
A Protandric Hermaphrodite. 
21 
Length of 
the animal 
in centi- 
metres 
Length of the 
reproductive 
organ or 
membrane 
Length of the 
posterior 
male portion 
(or sterile 
portion in 
females) of the 
reproductive 
organ 
7. Fe male with very small ova 
(2 mm. in diameter). In the 
posterior, sterile, portion, of the 
reproductive organ there is a 
single ovum situated only 3.7 
ctm. from the posterior ex- 
tremity of the organ .... 
8. Female with large ova (22 
mm. in length) 
9. Female with oblong ova 
(about 9 mm. in length) . . 
10. Female with 14 large, deep 
yellow, ova (20 mm. in length) 
11. Female with small ova (2.5 
mm. in diameter) but with 
empty (spent) ovarian cap- 
sules and corpora lutea . . . 
12. Female with large ova (23 
mm. in length) 
For the sake of comparison 
the measurements of a true 
male may be here added: 
13. Male. The reproductive or- 
gan contains, only male re- 
productive elements ; its poster- 
ior portion (7.3 ctm. in length) 
is well developed and promi- 
nent, whilst its anterior por- 
tion is much less developed, 
and but slightly prominent . 
33.7 ctm. 
34.0 ctm. 
34.7 ctm. 
34.7 ctm. 
34.7 ctm. 
35.0 ctm. 
32.0 ctm. 
17.5 ctm. 
18.0 ctm. 
19.9 ctm. 
17.2 ctm. 
1 7. 1 ctm. 
17.5 ctm. 
16.5 ctm. 
4.7 ctm. 
5 .0 ctm. 
5.4 ctm. 
5.6 ctm. 
3.8 ctm. 
6.8 ctm. 
l ) The measurements given above are those of specimens preserved in alco- 
hol, now in the Museum of Bergen. It may be that the measurements of the 
living specimens would have been a little different, but I scarcely think the diffe- 
rence would have been material. 
