Gerould. — Caudina. 
PLATE 8. 
Abbreviations. 
cp. sph. 
Spheruliferous corpus¬ 
mu. Ig. 
Longitudinal muscle 
fi- 
cle. 
nl. 
Nucleus. 
[bers. 
e'tli. ex. 
External epithelium. 
nlf. 
Remnant of nucleus 
in 
e'th. i. 
Internal epithelium. 
a degenerating 
ovum. 
lac. oa. 
Lacunar blood vessel of 
sp'cy. 
Spermatocyte. 
ovary. 
sp'd. 
Spermatid. 
m'py. 
Micropyle. 
sp'go. 
Spermatogonium. 
mu. crc. 
Circular muscle fibers. 
tis. con't. 
Connective tissue. 
Fig. 101. Section of ovarian ovum of Cucumaria frondosa. Picro-sulphurie 
acid. Ehrlich’s liaematoxylin and eosin. X 235. 
Fig. 102. Ovarian ovum in a state of degeneration. November. Corrosive 
sublimate. Ehrlich’s liaematoxylin. X 390. 
Fig. 103. Cross section of a branch of the genital duct. X 235. 
Fig. 104. Internal epithelium of the genital duct from a section of the duct. 
X 700. 
Fig. 105. Longitudinal section of the genital duct. X 514. 
Fig. 10G. Cross section of the testis of a young individual. X 385. 
Fig. 107. Section of wall of testis, showing spermatogonia. X 1125. 
Fig. 108. Internal epithelium of genital duct seen in optical section, showing 
collars surrounding the flagella. X 514. 
