182 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 121 



segment slightly more than half the length of third; third segment 

 elongate, rounded distally, distal end with 4 naked setiiles. Antenna 

 (fig. 68^) biramoiis, originating from lateral anterior surface of cepha- 

 lothorax. Protopodite 1-segmented, inner, darker portion of cuticle 

 forming 3 knob-shaped proximal processes articulating with inden- 

 tations on knob-shaped processes of cephalothorax. Distal end of 

 protopodite irregular, indistinct along inner siu-face, at origin of endop- 

 odite. Exopodite appearing 1 -segmented, approximately three- 

 fourths the length of protopodite. Distal end of exopodite curved 

 inward slightly, outer margin broadly convex, siu-face finely dentic- 

 ulated, inner margin broadly concave. Endopodite small, 2-seg- 

 mented, first segment slightly longer than second, second with spinule 

 on distal end. 



Mandible (fig. Q8h) appearing 3-parted, proximal part broad proxi- 

 mally, tapered abruptly, remaining parts tapered gradually to bluntly 

 rounded distal end. Inner siu-face of distal part with 8-10 primary 

 denticulations and 2 secondary denticulations, 1 between the first and 

 second primary denticulations, the other between the second and 

 third. Maxillule (fig. 68i) situated just posterior to mandible base, 

 consisting of stalk bearing palp on median posterior surface, palp with 

 2 spinides distally; distal surface of maxillide with 2 nodides and spi- 

 nide, both nodules with spinide distally. Maxillae (fig. 68a) elongate, 

 approximately lYi times the length of cephalothorax, situated at 

 posterior end of cephalothorax, well behind maxillipeds. Maxillae 

 separate to distal end, attached to small, top-shaped bidla. 



Maxilliped (fig. Q8j) 2-segmented, extending anteriorly from pad- 

 like ledge slightly posterior to mouth cone. First segment strongly 

 developed, with smoothly irregidar outline, bearing small, spinule- 

 like projection from medial inner siu-face. Second segment elongate, 

 with nodule on medial ventral surface, nodule bearing minute, sub- 

 conical projection. Distal end of second segment irregular, with step- 

 like indentation on inner siu'face, bearing 2 small, spinelike accessory 

 processes from inner siu-face and single, large, clawlike terminal 

 process. 



Description of male. — Body (figs. 69a, b) tapered at both ends, 

 lateral margins parallel throughout most of length although constric- 



FiGURE 68. — Brachiella regia, new species, female: a, lateral view; b, anterior portion of 

 cephalothorax, dorsal view showing irregular cuticular splotches; c, posterior region of 

 trunk showing posterior processes and portion of egg strings, ventral view; d, same, from 

 dorsal viewpoint with all except base of egg strings removed; e, left antennule, ventral 

 view;/, oral region, right side showing antennule, antenna (a-2), mouth cone, mandible, 

 maxillule (ma-1), and maxilliped (mxpd), ventral view; g, right antenna, ventral view; 

 h, denticulated portion of mandible, lateral view [drawn by Z. Kabata]; i, right maxillule, 

 ventral view;/, right maxilliped, ventral view. 



