WARp. — Nectonema. 
. 53. 
PLATE IV. 
Posterior end of male viewed as a transparent object in clove oil. 2. C 
xX 166. 
Wall of dorsal sac showing nuclei. Ehrlich’s hematoxylin. Apochr. 
4mm. Compens. Oc. 8. X 725. 
Spermatozoa (unripe *). Bohmer’s hematoxylin. Apochr. 4mm. Com- 
pens. Oc. 12.  X 1,000. 
Posterior end of female viewed as a transparent object in clove oil. 2. A. 
xX 96. 
Sagittal section through posterior end of female, showing slight develop- 
ment of anal ganglion. Ehrlich’s hematoxylin. 2.A. X 96. 
Transverse section through middle of body of female filled with eggs. 
Bohmer’s hematoxylin. 3. A. X 130. 
Transverse section through body wall of nearly mature female to show 
remains of cell layer (*) within the muscular layer. Bohmer’s hema- 
toxylin. 3.C. xX 380. 
Section of immature egg. Ehrlich’s hematoxylin. 3.D. 540. 
Section through nearly ripe egg. Bohmer’s hematoxylin. 38. D. x 540. 
Egg after contact with sea-water. Glycerine preparation. 3. D. x 560. 
