71 {70) Body teardrop-shaped with pointed posterior end; two to eight pairs of prostatoid organs present (Fig. 150). 



One freshwater and several marine species from Caspian Sea region 



Genus Oligochoerus. 



Figure 150. — Oligochoerus Umnophilus. 



71 (70) Body deeply notched at posterior end with one to three thin tails in the notch; prostatoid organs lacking (Fig. 

 151) Genus Polychoerus. 



Figure 151. — Polychoerus caudatus, dorsal view. 



46 



