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PROCEEDINGS OF THE NATIONAL MUSEUM. 



VOL. 63. 



the posterior border and at each side a long lateral seta. Gonopods 

 not well developed but fringed with conspicuous setae. Legs moder- 

 ate, first pair smaller than the other two pairs which are subequal. 

 Tarsus I (pi. 1, fig. 6) with first segment about twice as broad as 

 long, second segment about twice as long as broad, curved and with 

 five setae on its inside border, claws unequal, the ventral claw being 

 only about one-half as long as the dorsal one, dorsal claw only slightly 



Fig. 12.- 



-Hetkrogiropus heteeonychds. Dorsal view of female, x 90. (Last two 

 segments of each antenna wanting.) 



curved and with a tooth below near its apex. Femora II and III 

 long and each with well developed tenaculum ; tibiae II and III but 

 very slightly curved and broadest near their middle ; tarsi II and III 

 each formed into a clawlike structure which consists of first and 

 second segments and the minute, terminal, true tarsal claw. 



Length, 1.16 mm. ; width, 0.50 mm. 



Type host and type locality. — Kerodon spixii from Lamaras, 

 Bahia, Brazil. 



