148 TOKIO KABURAKI 
Epidermis and Body-glands.—tThe epidermis con- 
sists, as usual, of a layer of columnar cells, which are ofa greater 
height on the dorgal than on the ventral side. Wedged in 
between these cells, except on the ventral surface, are spindle- 
like rhabdites which appear almost homogeneous. In some 
sections they are seen to be discharged on to the exterior, 
revealing a layer of hardened mucus over the epidermis. ‘The 
rhabdites enclosed in the subcutaneous cells occur widely 
Trext-ric. 5. 
Eyes of Amblyplana trifuscolineata, n. sp. 
distributed on the dorsal side of the body. In addition to the 
glands deeply situated in the middle of the body and opening 
to the exterior on the surface of the sole, there are some glands 
which open in scattered distribution all over the ventral surface. 
Muscular System.—Immediately beneath the fairly 
well-developed basement membrane is the superficial muscular 
system composed of the outer circular and the inner longitudinal 
layers. ‘The deep muscular system, which chiefly consists of 
longitudinal fibres, is well developed all round in the paren- 
chyma as a thick and continuous sheet surrounding the intestine 
and the nerve cords. 
Digestive System.—The mouth-opening is placed at 
about the centre of the peripharyngeal chamber, in which is 
disposed the pharynx of a cylindrical shape. It is conically 
pointed at the free end. ‘The gut trunks are provided with 
numerous subdivided branches, the epithelium of which presents 
no noteworthy features, consisting, as it does, of high columnar 
cells. 
Reproductive Organs.—tThe genital apparatus is 
nearly similar in appearance to that of Am. tristriata Geba. 
The genital opening leads into the vestibulum, which forms an 
