132 CRUSTACEA—PERACARIDA CHAP. 
large cells at the interior borders of the testes begin to feed 
upon the remains of these organs and to grow enormously in 
size and to multiply by 
amitosis. These phago- 
cytes, as they really are, 
attain an enormous size, 
but they are doomed to 
degeneration, the chrom- 
atin becoming dispersed 
through the cytoplasm, 
and the nuclei dividing 
first by amitosis and then 
breaking up and dis- 
Fia. Boe view of Danalia curvata, x 15, nal aca As tie ae 
shortly after fixation and loss of larval appen- Site grows, the heart at 
paces eee ae ; = ONS he ETE | the posterior end of the 
iV, phagocytic cells ; O, ovary ; P, proboscis. 
body ceases to beat; the 
ovaries increase enormously at the expense of the alimentary 
canal, and on the ventral 
surface two pairs of sper- 
mathecae are invaginated 
ready to receive the sper- 
matozoa of a larval male. 
In the adult condition, after 
fertilisation has taken place 
and the ovaries occupy 
almost the whole of the 
body, the remains of the 
phagocytic cells can be 
seen on the dorsal surface 
in a degenerate state. They 
evidently are not used as 
food, and their sole function 
is to make away with the 
male organisation when it 
’ 
, 
‘ 
4 
: Fria. §9.—Optical section (dorsal view) of Danalia 
has become useless. curvata, in the same stage as Fig. 88. A, Ali- 
mentary canal; Hc, ectoderm; H, heart; N, 
In the series Bopyr ina, phagocytic cells ; O, ovaries ; P, proboscis. 
after the free-living Epi- 
1 M. Caullery (Joc. cit. p. 130) questions the truth of this observation, but I am 
convinced of its accuracy. 
