160 



DOCHMIUS CERNUUS, Creplin. 

 Plate XXII. 



Fig. 1. Adult male, X9: la, uatural size. 



Fig. 2. Adult fejnale, X 9 : 2a, natural size ; b, vulva. 



Fig. 3. Ceiihalic eud of male, ventral view : a, Lead ; b, b, (esophagus ; c, c, neck 

 papilhe ; d, opposite ventral cleft out of which the unicellular gland 

 ducts e, e, empty by a couimon tube,/; g, unicellular glands; ?i,7t, two 

 ends of the seminal tubes ; i, i, i, seminal tube ; fc, k, intestine. 



Fig. 4. Head, dorsal view : a, month ; b, b, the chitiuous oral teeth on the left side ; 

 c,c,c, three papilla} on right side; d, dorsal teeth; e, e, neck glands; /, 

 a?sophagus. 



Fig. 5. Head, right side. Letters as in Fig. 4: g, ventral teeth; h, chitinous 

 capsnle. 



Fig. 6. Pharynx and lower part of capsule of head, ventral view : a, the cut edge 

 of capsule; &, the dorsal tooth; c, c, ventral teeth ; ri, pharynx, in which 

 are six club-shaped bodies, which seem to bo appendages of the chiti- 

 nous rods of the (esophagus; e, lesophagus ; /, enlarged club-shaped 

 body, which is chitiuous and covered with rough points. This apparatus 

 seems to be for mastication. 



Fig. 7. Middle portion of female, X 30 : a, vulva ; b, vagina ; c, c, jwrtions of cephalic 

 uterus ; d, d, caudal uterus with eggs; e, oviduct ; /,/, cephalic ovary ; g, g, 

 caudal ovary ; h, h, intestine. 



Fig. 8. Eggs: a, o, from ovary; b, in oviduct; the rest from the uterus in varioui? 

 stages of cell division ; c, as they are expelled. 



Fig. 9. Bursa: a, ventral costie ; b, veutro-lateral ; c, lateral; d, latero-dorsal ; e, 

 dorsal. The two sides are unsymmetrical. 



Fig. 10. Spicula. 



Fig. 11. Portion of spiculum showing fenestrations and openings into the tube : a, 

 tube ; b, wing. 



