3 
The cuticle is smooth or possibly provided with exceedingly delicate 
transverse striæ. Under high magnifying power (Apochr. 2 mm) it 
seemed to me as if such a striation was perceivable, but it is pos- 
sible that this was due to the pigment 
granules in the subcuticular layer. With 
certainty I was not able to settie this 
question. Setæ seem to be entirely lacking, 
not only on the body but even on the 
head. Nor have I been able to see any 
lips or papillæ. Eyes and lateral organs 
likewise seem to lack. There is no buc- 
cal cavity; the entrance to the mouth is 
only like a prick of a needle. Regarding 
this feature and the structure of the æso- 
phagus I consider it probable that the 
animal is feeding excusively upon liquids. 
The æsophagus is at its base 
provided with a conspicuous 
bulb of globular shape, the 
interior of which forms a 
rather spacious cavity. For 
the rest the æsophagus 
seems to be rather thin, 
but it is very indistinct in Fig. i. Moigoiaimus tenuispicu- 
lum, 9 . 
the distal two thirds so that 
it has been impossible to me to ascertain whether 
another bulb is found near the middle or not. No 
nerve ring was observed. Ventral giand seems to 
be lacking. 
The female organs are symmetrical and the ovar¬ 
ies reflexed. Only one shell-egg has been observed 
in each of the branches of the uterus. The vulva is 
found somewhat cephalad to the middle of the body. 
In a female the length of which makes 0,79 mm the 
vulva was situated 360 [i from the front end. The 
Fig. 2. Moigoiai- spicules are exceedingly long and filiform; they are 
mus tenmspicu- highly flexible as is seen in fig. 11, PI. III. There is 
female. no accessory piece nor supplementary organ. The length 
i* 
