39. 



Genus Pungentus Th. & Swang., 1936 

 (Key to the species modified from Thorne, 1939) 



1. Spear slender, generally slightly arcuate, its length nearly twice 

 width of lip region or more 2 



Spear straight, its length near width of lip region or less .... 10 



2. Lips angular, very prominent 3 



Lips not angular, low or rounded k 



3. Ovary one thornei Goodey, 19U2 



Ovaries two an^jiilosus Thorne, 1939 



ii. Vestibular plates absent 



... . intertextus (Th. & Swang., 1936) Thorne, 1939 



Vestibular plates present 5 



5. Length 3^5 vm or over . . . textilis (Th, & Swang., 1936) Thome, 1939 

 Length 2.0 mm or less 6 



6. Ovaries two 7 



Ovary one 8 



7. Tail with two caudal papillae pungens Th. & Swang., 1936 



Tail with only one caudal papillae marietani Altherr, 1950 



8. Tail swollen, somewhat truncate 



ichthyaris (Cobb, 1906) Th. & Swang., 1936 



Tail unifonm, hemispherical or conoid 9 



9. Tails bluntly conoid, supplements 3-k sparsus Thome, 1939 



Tails elongate hemispherical, supplements 8 

 monhystera Th. & Swang,, 1936 



10. Ovaries two brevidentatus Thome,, 1939 



Ovary one •. •. . 11 



11. Anterior rudimentary uterine branch absent. , . . parvus Thome, 1939 

 Anterior rudimentary uterine branch present . . 12 



12. Lips low, amalgamated microdentatus Thorne, 1939 



Lips prominent, angular obscurus Thome, 1939 



