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PROCEEDINGS OF THE NATIONAL MUSEUM 



Small, heavily sclerotized, knoblike postoral adhesion process present 

 in both female and male (figs. 32c?, e), arising from Y-shaped region 

 of heavy sclerotization, just posterior to postoral process. Female 

 and male maxilla (fig. 32/) 2-segmented, second segment with fine 

 membrane along medial posterior surface and 2 saber-shaped terminal 

 processes, innermost approximately twice the length of outermost. 



Female and male maxilliped (figs. 32^, h) 2-segmented, situated 

 medial and posterior to maxilla base. Fu'st segment strongly devel- 

 oped, with indentation on proximal inner surface, identation with 

 pair of small, heavily sclerotized projections, adjacent surfaces of 

 projections forming groove receiving distal end of second segment 

 terminal process when second segment flexed. Second segment sepa- 

 rable from clawlike terminal process, bearing setalike and lappet- 

 shaped accessory processes. 



Sternal furca (figs. 33a, h) situated well posterior to maxilliped 

 bases. Bifurcate portion of female furca at end of necklike process, 

 bifurcate portion of male furca also on process although process 

 much shorter. Pair of spinelike projections present, posterior to 

 furcal base, just anterior to interpodal plate of first thoracic legs. 



For nature of legs and armature, see figures 33c-y and table 12. 

 First thoracic leg with 3 spinules on inner surface of second segment 

 of exopodite instead of 3 plumose setae normally found. 



Table 12. — Armature of thoracic legs I-IV of the female and male of 

 Lepeophtheirus? fallolunulus, neiv species 



*Five-lobed adhesion pad. 



tSingle large denticulation. 



JRamitied spine; female with 6 rami (excluding tip), male with 7. 



sThrec roughened areas. 



liSeveral hairUke processes not tabulated. 



Discussion. — The species is tentatively placed m the genus Lepeoph- 

 theirus because the general characteristics most closely approximate 

 those of Lepeophtheirus (e.g., fourth pedigerous segment free, not 

 completely covered dorsally by median projection of cephalothorax; 

 abdomen distinct, not fused with genital segment; first 3 thoracic legs 

 biramous although endopodite of first leg reduced, fourth thoracic leg 



