48 Art. 2.— T. Kalmraki: 



row in the smaller specimens; but in the larger ones they may be 

 increased to such a number that several are found in the width of 

 the ocellated zone, especially in the anterior parts of the head. A 

 gap in the zone may occur in the middle of the frontal margin, 

 separating it into the right and left zones. 



Body Wall — The epidermis is somewhat thicker on tlie dorsal 

 than on the venti'al surface. Wedged in between the epidermic 

 cells are found spindle-like rhabdites, which take place in the sub- 

 cutaneous cells, occurring in wide distribution over various parts 

 of the body. Besides the glands opening su]>marginally on the 

 ventral surface there are some glands which open liere and there 

 ove]' tlie entire surface of the body. The dermal musculature 

 consists, as usual, of circular, transverse and longitudinal layers. 



Digestive Syetem. — The mouth-opening is situated at about 

 the hind end of the middle third of the body. The pharynx-inser- 

 tion is found a short distance in front of the middle of the body. 

 The anterior main trunk of the intestine sends out 5-7 pairs of 

 lateral branches; the posterior trunks are each provided with about 

 15 of the same. 



Genital Organs. — The following is based on a few mature or 

 nearly mature specimens unfit for close study. Nearly midway 

 between the mouth-opening and the hind end of the body is pre- 

 sent the common genital aperture, which leads into the long and 

 tubular atrium. As usual, the atrium is internally lined with a 

 single epithelium, without being surrounded by such a thick mus- 

 cular coating as observed in Poly, auriculata and Foly. ijimai. 



Numerous testes are situated ventrally along both sides of the 

 anterior gut trunk, extending from the ovarian region to the in- 

 sertion of the pharynx. The vasa deferentia, being full of sper- 

 matozoa, pursue a backward course along the inner side of the 

 longitudinal nerve cords, finally to open separately into the 

 moderately wide seminal vesicle, which passes behind into the 

 slender ejaculatory duct. The penis is of small size and hoiizon- 

 tally disposed, its muscular wall not being sharply defined from 

 the surrounding parenchyma. The free end projects but little into 

 the widened anterior end of the tubular atrium, the penis-sheath. 



