Reotooe-phdla exotica Hyman, 1953b 



93 



ode bd 



vdc pb am gp 



Fig. 92 and 93 after Hyman (1953b). 



Preserved specimen 14 nun long. Anterior end appears co be truncate, with 

 a central adhesive organ. Eyes two. Pigmentation uniformly black. Ad- 

 hesive organ forms an irregular invagination of glandular epithelium, 

 equipped with a complex system of muscle fibers. Ovaries rather far back 

 from the head, testes not seen. Copulatory complex consists chiefly of 

 a large cavity lined with a tall glandular epithelium which forms villus- 

 like projections. This cavity is interpreted by Hyman as an enlarged 

 bulbar lumen. The sperm duct (called ejaculatory duct by Hyman), appar- 

 ently originating from the union of the paired ducts, enters the anterior 

 wall of the cavity and projects into its lumen. The common oviduct opens 

 into the posterior sector of the male cavity which is lined by a normal, 

 nonglandular epithelium (interpreted as the remnant of a male atrium) . 

 The copulatory bursa, situated behind the pharyngeal pouch, has an exceed- 

 ingly long, narrow canal running backward in the dorsal midline, widening 

 only in its posterior portion, then narrowing again and opening into the 

 atrium near the gonopore. Only one specimen has been studied, collected 

 in the Shaw Lily Ponds (now Kenilworth Aquatic Gardens), Washington, 

 District of Columbia, apparently introduced with exotic water plants. 

 Literature: Hyman (1953b). 



65 



