166 Rowland M. Shelley 



impressions. Facial setae as follows: epicranial 2-2, interantennal not 

 detected and presumed absent, subantennal 1-1, frontal 1-1, genal 4- 

 4, clypeal about 30-30, labral about 16-16. 



Sides of metazonites granular, with ventral ridges just above leg 

 coxae on segments 1-14, higher and more distinctly elevated above 

 metazonal surface on segments 1-4, becoming progressively lower 

 caudad. 5th sternum with two low, widely segregated, paramedian 

 knobs between anterior (4th) legs, shorter than widths of adjacent 

 coxae, and moderate depression between 5th legs. Coxae with small 

 medial lobes on legs 3-5; prefemora with short, indistinct ventrodistal 

 spines on legs on segments 10-16. 



Gonopodal aperture generally ovoid, extending slightly caudad 

 between 9th legs, 1.6-mm wide and 0.9-mm long at midpoint, indented 

 slightly anteriolaterad, anterior margin and sides flush with metazonal 

 surface, caudal margin becoming elevated at caudolateral corner, rising 

 slightly to midline. Gonopods in situ (Fig. 40, of paratype) with telopodites 

 extending generally anteriad from aperture and overhanging 6th sternum, 

 acropodites and prefemoral processes angling toward each other and 

 overlapping in midline. Gonopod structure as follows (Figs. 41-43). 

 Coxa moderately large, with 2 dorsal and 4 ventral macrosetae, narrowly 

 segregated from opposite member by narrow sternal band, latter with 

 medial lobe. Prefemoral process short and broad, arising from dorsal 

 surface, curving broadly at 2/3 length and expanding distad, deeply 

 divided apically and terminating inside loop of acropodite in two 

 acuminate determinations, medial one broader. Acropodite arising 

 ventrad on prefemur, curving over prefemoral process in subparallel 

 arrangement, expanding broadly with thickened medial margin and 

 with strong projection from lateral surface distal to midlength, latter 

 spiniform, extending nearly to level of terminus of prefemoral process, 

 stem of acropodite narrowing slightly distad and looping dorsad be- 

 yond terminus of prefemoral process, curling to acuminate tip. 



Male paratypes — The male paratypes agree with the holotype in 

 all particulars. 



Female paratype — Length 25.6 mm, maximum width 4.0 mm, 

 W/L ratio 15.6%, D/W ratio 87.5%. Agreeing essentially with the 

 males in somatic features except paranoia more strongly declined, 

 creating appearance of more vaulted body. Valves (Fig. 44) small, 

 subequal, lightly hirsute, becoming slightly higher mediad but without 

 distinct lobes or projections, slightly depressed centrally. Receptacle 

 small, alate, cupped around medial side of valves, with long hairs 

 arising from outer surface. Operculum relatively large, located laterad 

 to valves. 



