MILAX SOWERBIL. 153 
in front and to the right of the cephalic retractor ; in addition there are a number 
of muscular fibres which bind the apex and concave side of the epiphallus to the 
base or to the atrium; the SPERMATHECA in adults is shaped like a long-necked 
Fic. 173.—Cephalic re- 
tractors of Milax sowerbit, 
Fic. 171.—Alimentary tract of 
x 8. 
Milax sowerbii, showing the 
buccal bulb and nerve-ring, x 2. 
Fic. 172.—Sexual organs of Mzlax sowerbii, x 3, the accessory glands turned aside to show the 
character of the atrium. a@/é.g7. albumen gland ; of. ovotestis ; sf. spermatheca ; sf.d. sperm duct ; 
p-s. penis sheath ; ef. epiphallus ; ~. retractor ; g/. accessory glands. 
Florence flask, the apex is attached to the ovi-seminal duct, and the base well defined 
from the narrower but short and slightly inflated stem, which is regularly and 
strongly plicated internally, and joins the free oviduct just before entering the 
ATRIUM; the VESTIBULAR GLANDS consist of a multitude of long, slender, opaque, 
and buff-coloured tubules, more or less ramified and inter-connected, their ducts 
discharging into the base of the oviduct at the 
point where the spermatheca enters and into 
which organ the secretion is directed; the 
atrium is comparatively large and fleshy, with 
ample outlet ; the SPERMATOPHORE in shape 
may be likened to the head of a Bishop’s 
crozier with a short staff, the curved portion 
armed with three or more subspiral rows of 
recurved denticles, many of which are tricuspid 
or even multicuspid ; the straight lower por- 
yl 
tion is conically diminished, glistening pearly- Fic. 174, Fic. 175. 
white, perfectly smooth and open at the end. Fic. 174,—Spermatophore of Milax 
It agrees exactly with the spermatophore of — sowerdii, x 8 (from a micro-photograph). 
Milax hessei Bottger, which should probably Fic. 175.—Spinules from the spermato- 
: M. er bit ly enlarged). 
be placed amongst the synonyms of this See ear ee ee 
species, but differs from the spermatophore of Milax marginatus, which is described 
as armed with denticles throughout its entire length. 
The ALIMENTARY SYSTEM in our British form has about half-a-turn less twist 
than the continental Milax marginatus; tlle ESOPHAGUS is about six mill. long, and 
obscurely striped ; the Crop blackish-brown and bent, with the white and rather 
compact SALIVARY GLANDS attached at opposite sides; the general plan of the 
INTESTINAL TRACT is triodromous, and very similar to the arrangement in Wilax 
gagates ; the DIGESTIVE GLAND is of a dull chestnut-brown, the right lobe extend- 
ing to the end of the body cavity, and twisted round with the intestine; the left 
lobe is smaller, and extends forward towards the kidney; the hepatic arterial 
branches are white, and extend over the surface of the intestines, binding the whole 
mass intimately together. 
The CEPHALIC RETRACTOR arises from the dorsum at the posterior margin of the 
lung chamber; the PHARYNGEAL MUSCLE is most usually though not invariably 
independent of the TENTACULAR RETRACTORS, but their roots arise in close prox- 
imity; it is very deeply cleft, bifureating just before reaching the nerve ring, while 
the tentaculars divide half-way to the nerve collar, exactly at and under the part 
of the shell which is firmly attached to the floor of the sae, 
25/5/04 K 
