68 PROCEEDINGS OF THE NATIONAL MUSEUM VOL. 125 
segment rodlike, approximately four-fifths the length of first segment, 
posterior surface with single naked setule distally, distal surface with 
12 naked setae and setules. Female antenna (fig. 27a) 3-segmented, 
situated posterior and medial to antennule base. First segment short, 
squat, outline subtriangular. Second segment subrectangular; third 
segment and incompletely fused terminal process clawlike, with sub- 
conical accessory process proximally, setule-like, accessory process 
medially, at indistinct division between segment and terminal process. 
Male antenna (fig. 27b) 3-seemented, situated posterior to antennule 
base. First segment elongate, fused proximally with cephalothorax, 
angled ventrally toward distal end. Second segment well developed, 
broader proximally than distally, with adhesion pad on distal half of 
inner surface. Third segment fused with short, bifurcate terminal 
process, tines of terminal process pointed; setule-like accessory process 
present, arising just proximal to terminal process. 
Female and male mandible (fig. 27a) rodlike, 4-parted, distalmost 
part curved inward, flattened, inner surface with 12 denticulations. 
Female postantennal process (fig. 27a) situated lateral and slightly 
posterior to antenna base, consisting of short, clawlike projection and 
3 nodules, first 2 on base of projection, third shghtly posterior to 
base, all 3 with several hairlike processes. Male postantennal proc- 
ess (fig. 276) as in female except clawlike projection much longer. 
Female postoral process (fig. 27a) spinelike, situated immediately 
posterior to maxillule, spine projecting from middle of base, distal 
end rounded. Male postoral process as in female except spine project- 
ing from outer portion of base. Female and male maxillule (fig. 27a) 
nodular, situated lateral and slightly posterior to mandible base, 
nodule bearing 2 short and 1 long, seta-like processes. Female and 
male maxilla (fig. 27c) 2-segmented, located posterior and lateral to 
postoral process; both segments slender although first approximately 
two and one-half times the diameter of second, length slightly more 
than four-fifths that of second. Second segment rodlike, with small 
flapshaped membrane on distal third of outer surface, bearing 2 saber- 
like terminal processes, innermost longer than outer, both with fine 
membrane along outer and inner margins. 
Female maxilliped (fig. 27e) 2-segmented, situated posterior and 
slightly medial to maxilla base. First segment strongly developed, 
with slightly recurved proximal region terminating in knoblike proxi- 
mal end; inner medial surface with small, shelflike projection (not 
shown on figure) receiving distal end of terminal process of second 
segment when segment flexed. Second segment distinct from clawlike 
terminal process, bearing setule-like accessory process on distal inner 
surface. Male maxilliped (fig. 27d) similar to that of female except 
first segment more strongly developed and recurved proximal end 
