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PACIFIC SCIENCE, Vol. VII, July, 1953 
integumentary imbricate sculpturing very 
prominent and uniform. Labrum moderately 
long, 0.3 of width at 1-C, anterior margin 
very deeply emarginate (twice as deep as fig- 
ured). Mental plate (more triangular than 
figured) with 21 blunt teeth, faintly indicated. 
Hairs of head capsule well pigmented, con- 
spicuous; 5, 6-C spike-like, very darkly pig- 
mented, apices sharply pointed, shaft very 
minutely spiculate, more conspicuously api- 
cally; 7, 11-C very minutely barbed, other 
hairs simple; relative position, length, and 
degree of development as figured. Hair 0(1, 
very well developed, reaching to middle of 
1-C, very lightly pigmented, flattened and 
broadened basally, with external tooth), 1(1, 
very slightly curved, short, sharply pointed), 
3(1, minute, stiff and heavily pigmented), 
4(3b), 5(1), 6(1), 7(4b, short expanded base), 
8(1, 2f), 9(2b), 10(2f), ll(5b, slightly ex- 
panded short base), 12(2f), 13(5, 6b), l4(bro- 
ken off), 15(2f). Antenna 0.23 of head; shaft 
distinctly narrowed at 0.6; width at middle 
about 0.17 of length; uniformly very darkly 
pigmented; spicules small, sparse. Antennal 
hairs well pigmented, except apex of 5-A; 
relative position, length, and degree of devel- 
opment as figured; all single; 1-A placed at 
about 0.32, length about 1.4 of antennal 
width. 
Thorax: All hairs and tubercles strongly pig- 
mented; relative position, length, and degree 
of development as figured; apices of long 
hairs attenuated and sharply pointed; barbs 
when present numerous, long and slender and 
moderately conspicuous; hair 5-P about as 
long as head. Prothorax: hair 0(12, I4d), 1(1), 
2(1), 3(8, 9b, large expanded base), 4(3b), 
5(1), 6(1), 7(2b), 8(5b), 9(2b), 10(1), ll(3f), 
12 (2f), I4(6b, expanded asymmetrical base). 
Mesothorax: hair l(6b), 2(1), 3(3, 5b), 4(4, 
5b), 5(l),6(l),7(l),8(6b),9(5b), 10(1), 11(1), 
12(1), 13(21, 23d), 14(29, 30d). Metathorax: 
hair 1(4, 5b), 2(2, 3f), 3(6b), 4(4b), 5(1), 
6(2f), 7(8b), 8(llb), 9(5b), 10(1), 11(2, 4b), 
12(2f), 13(8b). 
Abdomen: Tubercles of segments I, II and 
hairs of all segments well pigmented; relative 
position, length, and degree of development 
as figured; barbs when present slender, lightly 
pigmented and sparse. Stellate hairs (1, 6, 13) 
with equal branches; 4-II a stellate hair. Seg- 
ment I: hair 1(6, 7b), 2(1, 2b), 3(1, 2b), 4(11, 
15b), 5(4, 5b), 6(2b), 7(1), 8(2f), 9(9, lib), 
10(3, 5b), 12(1, 3b), 13(1, 2f). Segment II: 
hair 0(1), 1(4, 5b), 2(1), 3(5b), 4(6b), 5(2, 
3b), 6(2b), 7(1), 8(1), 9(1), 10(2b), 11(2, 3f), 
12(1, 2f), 13(4, 5b). Segment III: hair 0(1), 
1(5, 6b), 2(1), 3(2b), 4(2f), 5(2, 3b), 6(6b), 
7(5b), 8(2b), 9(1), 10(2f), ll(3b), 12(2, 3b), 
13(5, 7b), 14(1). Segment IV: hair 0(1), 1(6, 
7b), 2(1), 3(1, 2f), 4(4, 3f), 5(3, 4b), 6(6, 7b), 
7(4, 5b), 8(2, 3f), 9(1), 10(2, 3f), 11(1), 12(1, 
2b), 13(6b), 14(1). Segment V: hair 0(1), 
l(6b), 2(1), 3(5b), 4(2f), 5(4b), 6(6b), 7(5b), 
8(3b), 9(1), 10(2, 3f), 11(1), 12(2, 3b), 13(6, 
7b), 14(1). Segment VI: hair 0(1), l(6b), 2(1), 
3(2, 4f), 4(2b), 5(3b), 6(6b), 7(3b), 8(2, 3b), 
9(1), 10(1, 2b), ll(2f), 12(2f), 13(25, 32d), 
14(1). Segment VII: hair 0(1), l(5b), 2(1), 
3(8b), 4(2f), 5(3, 4b), 6(6, 7b), 7(4, 5f), 8(7, 
9b), 9(2b), 10(2f), 11(2, 3b), 12(1), 13(5, 6b), 
14(1). Segment VIII: comb plate heavily 
sclerotized, moderately pigmented, ornament- 
ed with numerous imbrications with very dis- 
tinct spicules caudally; comb scales 8-9, me- 
dian ones longer, very sharply pointed, with 
conspicuous lateral fringe in basal half as 
figured; hair 0(1), 1(3, 5b), 2(2f), 3(6b, 
barbed), 4(2f), 5(8, 9b), 14(1). Siphon: as 
figured; median width 5.0 of length; uniform- 
ly moderately pigmented, ornamented basally 
with faint, spiculeless imbrications; pecten 
extending to almost 0.5, teeth 16-16 with 
lateral and apical fringe as figured; valves as 
figured, darker than siphon, ventral valve 
moderate; hair l(10b, basal expansion very 
short, inconspicuous; barbs extremely small 
and sparse), 2(1, moderate, slender), 3-5(only 
2 setal rings visible), 6(1, well developed), 
7(1, slender, conspicuous), 8(1, slender, about 
0.5 of valve), 9(1, moderately strong, hook- 
like), 10-12 (not observed), 13(1, strong, 
twisted. at base, about length of valve). Seg- 
