34 
PACIFIC SCIENCE, Vol. Ill, January, 1949 
simple or two- to three-forked at apex; M small, 
three- to four-forked near base, rarely five- 
forked; S long, usually three- forked near base, 
rarely simple or two-forked; T medium, two- to 
four-forked near basal one-fourth; u very small, 
simple. 
Segment II: A small, simple spine; B medium, 
usually three-forked near base, rarely simple or 
two-forked; C medium, three- to five-forked 
basally, each branch itself being forked further 
out; c' medium, three- to four-forked; 1 me- 
dium, two- or three-forked near basal one- 
fourth; 2 long, two-forked near base; 3 small, 
two- or three-forked near apex, rarely simple; 4 
Fig. 18. Uranotaenia argyrotarsis: dorsal aspect of 
right half of abdomen of male from WagaWaga, 
Papua. 
long, simple; 5 minute, simple on this and all 
following segments. 
Segment 111: A small, simple spine; B medium, 
two- or three-forked near base, rarely simple; C 
medium, three- to six-forked near base; c' small, 
simple on this and all following segments except 
VIII from which it is absent; 1 medium, usually 
two-forked, occasionally three- or four-forked; 
2 small, two-forked near apex; 3 represented 
only by its socket; 4 medium, four- to five- 
forked near base. 
Segment IV: A small, simple spine; B long, 
reaching to anterior part of segment VI, four- 
or five-branched, rarely three-branched; C similar 
to B, five- or six-branched; 1 small, three- or 
four-forked near base; 2 very small, simple or 
rarely three-forked near apex; 3 represented only 
by its socket; 4 small, two- to five-forked near 
basal one-fourth. 
Segment V: A small, simple spine; B similar to 
B-IV, three- or four-branched; C similar to C-IV, 
three- to six-branched, usually five; 1 long, 
three- or four-forked near base; 2 small, three- 
to five-forked near base; 3 represented only by 
its socket; 4 small, two- or three-forked near 
base. 
Segment VI: A small, simple spine; B similar to 
B-V, but not quite as long, three- or four- 
branched; c similar to C-V but not as long, three- 
or four-branched; 1 medium, three- or four- 
forked near base; 2 small, two- to four-forked 
near basal one-fourth; 3 absent; 4 small, usually 
simple, occasionally two- or three-forked near 
apex. 
Segment VII: A small, three-branched; B similar 
to B-VI, two- to five-branched; C similar to C-VI, 
two- to four-branched; 1 small, three-forked 
near base; 2 medium, usually simple, occasion- 
ally two-forked near apex; 4 medium, three- to 
five-forked near base. 
Segment VIII: A medium-long, two- or three- 
branched; A r medium, two-forked near apex or 
simple. 
Segment IX: v small, simple. 
Paddle: Elongate, more or less pointed; margin 
very finely serrate laterally, becoming coarser 
