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PROCEEDINGS OF THE NATIONAL MUSEUM 



developed, heavily sclerotized proximal portion with scoop-shaped 

 distal end bearing naked but strongly developed spike-shaped ter- 

 minal seta. Proximal part of leg extending posteriorly to posterior 

 end of abdomen. Male sixth leg short but bearing single, naked, 

 spike-shaped terminal seta. Female with small, lobate extension of 

 posterior lateral abdominal surface, male also with extension but 

 reduced in size. 



Distal end of first antennular segment with minute, bifurcate pro- 

 jection of posterior surface. Male antenna with terminal process 

 consisting of double-spined posterior part in which one spine lies 

 above (distal to) other, giving bifurcate appearance in lateral view, 

 additional bifurcate part on anterior lateral portion of process and 

 bearing single accessory process from apex of bifurcation in addition 

 to single, clawlike projection curving anteriorly from base of bifurca- 

 tion. Third thoracic leg with 2-segmented exopodite, although 

 position and nature of armature elements on outer lateral margin of 

 segment 2 reminiscent of Dentigryps species with 3-segmented exop- 

 odite (see Discussion of Species) . 



• fmdH: A membrane-encircled spine with a denticulated membranous margin. 



Dentigryps litus, new species 



Figures 9; 10; 11; 12d,h,l; 13d 



(The name "litus," Latin for the coast, the shore, refers to the habitat 



in which the hosts of this copepod live.) 



Material. — One ovigerous female designated as the holotype 



(USNM 107867) taken by the author from the external surface of a 



specimen of Plectropomus leopardus (LacepMe) speared by David Au, 



