The Chonaphini 161 



33, not this specimen) with telopodites extending anteriad from aperture 

 and overhanging anterior margin, acropodites curling mediad dorsal 

 to prefemoral processes and overlaying each other in midline, prefemoral 

 processes angling toward each other and extending forward over 6th 

 sternum, apices bent dorsad. Gonopod structure as follows (Figs. 34- 

 37): Coxa moderate size, with macrosetal tufts above and below cannula, 

 narrowly sepaiated from opposite member and connected by narrow 

 sternum, latter with small paramedian lobes subtending coxae. Prefemoral 

 process long and narrow, arising basally on medial side and extending 

 forward in sublinear fashion, with broad, cupulate medial projection 

 at 1/3 length, latter narrow basally then expanding broadly with 5 

 sharply acute teeth, 2 basally and 3 distad, and a second, more distal 

 projection, also with terminal teeth, arising from the first, stem of 

 prefemoral process bent strongly dorsad at 2/3 length, extending sub- 

 linearly and curving downward distad, apically subacuminate, with 8 

 slender barbules arising from inner margin distal to dorsal bend, spaced 

 more or less equidistantly, clustered at distal curve. Acropodite arising 

 lateral to prefemur, long, slender, and acicular, looping over prefemoral 

 process at level of caudal bend, curling over medial surface of latter 

 and overhanging medial projection, apically acuminate. 



Male paralectotypes — The medial projection of the prefemoral 

 process varies with more or fewer teeth than in the lectotype. The 

 number of barbules varies from 5-13, which are generally clustered 

 distad near the distal curve and evenly spaced back to the bend at 2/3 

 length. One paralectotype has a barbule proximal to the bend. 



Female paralectotype — Length 23.6 mm, maximum width 4.5 

 mm, W/L ratio 19.1%, D/W ratio 80.0%. Agreeing closely with lectotype 

 in structural details except paranota slightly shorter and more declined, 

 creating appearance of more vaulted body. Valves (Fig. 39) moderately 

 large and subequal, moderately hirsute, medial corners extending ventrad 

 well below level of lateral corners, subtending central cavity. Receptacle 

 relatively small, alate, cupped below medial corner of valves, extending 

 slightly up anterior and caudal surfaces of latter, with long hairs 

 arising from ventral margins. Operculum large, located laterad to valves. 



Variation — As in the paralectotypes, variation among nontypical 

 males primarily involves the configuration of the medial projection 

 of the prefemoral process and the number and arrangements of barbules. 

 The medial projection is flattened and plate-like in some males, while 

 it is lobate in others; in the western part of the range its margins are 

 smoother and less serrate than in the types (Fig. 38). The barbules 

 vary as in the paralectotypes, clustering distad, being rather evenly 

 spaced proximad, and typically arising distal to the bend at 2/3 length. 



