NYMPHONIDAE 



79 



A'^. angolense does not agree with any of the African species Hsted by Flynn (1928, 

 p. 6). ^ 



b 



Fig. 37. Nymphon angolense, n.sp.: a. Chelophore. b. Palp. c. Terminal segments of third leg. (All x 27.) 

 d. Segments 1-7 of male oviger: >; 20, and distal end of fifth segment: x 60. 



Genus Heteronymphon, n.g. 



Diagnosis. Body smooth, rather compact, segmented, with well-defined lateral 

 processes; cephalic segment with short thick neck and low wide ocular tubercle 

 situated in front of neck and between the two anterior lobes of cephalon. Chelophores 

 long, slender; chela not exceeding half the length of the scape. Palp five-jointed. 

 Oviger ten-jointed with denticulate spines on the four terminal segments, but without 

 terminal claw; fifth segment in male relatively short and considerably expanded distally 

 (like that of group II in the genus Nymphon). 



Remarks. In general appearance the specimens referred to this genus resemble those 

 belonging to the smaller species of Nymphon with short neck, e.g. Nymphon pfefferi. 

 But the anterior position of the ocular tubercle ^ and the absence of the terminal claw 

 on the oviger separates this form from all species of the genus Nymphon. These two 

 characters are also found in the genus Nymphonella, Ohshima (1927, p. 257), but the 

 latter would appear to belong to the Eurycididae rather than the Nymphonidae, since the 

 chelophore is reduced, the palp has nine segments, and the proboscis is ' ' directed ventrad ". 

 1 The ocular tubercle is never situated in front of the point of insertion of the oviger in Nymphon. 



