58 WESLEY R. COE. 



EXPLANATION OF PLATE V. 



FIG. 14. "N ecton emeries minima. Outline of head, showing position of the 

 spermaries (sp) with their long genital ducts (sd) leading to the ventro-lateral 

 surfaces of head; m, mouth; br, brain; t, base of tentacle. X 24. (After Brink- 

 mann, '16.) 



FIG. 15. Bathynedes murrayi. Outline of anterior portion of body, showing 

 the five pairs of protruding genital ducts (penes, pe) ; m, mouth. X 6. (After 

 Brinkmann, '12.) 



FIG. 16. Same species. Outline of three of the muscular walled spermaries 

 (sp), showing the genital ducts (pe) protruding from the body walls (bw). X 12. 

 (After Brinkmann, '12.) 



FIG. 17. Paradinonemertes drygalskii. Outline of anterior portion of body of 

 male, showing the two pairs of spermaries (sp) behind the brain (br) ; ro, rhyncho- 

 deum; m, mouth; id, intestinal diverticulum. X 12. (After Brinkmann, '16.) 



FIG. 18. Nectonemertes mirabilis. Sketch of living, sexually mature male with 

 fully developed tentacles. Length of body after preservation 19 mm. X 4. 

 (After Burger, '09.) 



FIG. 19. N. pelagica. Outline of body of sexually mature male. X 6. (After 

 Cravens and Heath, '06.) 



