. British fresh-water Copepoda. --. Copepoda; Crustacea. CYCLOPS BISETOSUS. 229 parallel, 5-7 times as long as broad, and 120-145°/oo of body-length ; lateral seta inserted near end (77-83%) ; inner apical seta much shorter than ramus, and a little shorter than outer seta ; setae 2 and 3 very long, the latter sometimes more than half length of body ; both setae finely feathered. Antennule of 17 segments, ex- tending very little beyond cephalothorax. Legs with rami 3-segmented, with spine formula ,3; outer. Figs. 1682-1685.—Cyclops bisetosus. Fig. 1682.—Leg 3. Fig. 1684.—Leg 5. Fig. 1683.—


. British fresh-water Copepoda. --. Copepoda; Crustacea. CYCLOPS BISETOSUS. 229 parallel, 5-7 times as long as broad, and 120-145°/oo of body-length ; lateral seta inserted near end (77-83%) ; inner apical seta much shorter than ramus, and a little shorter than outer seta ; setae 2 and 3 very long, the latter sometimes more than half length of body ; both setae finely feathered. Antennule of 17 segments, ex- tending very little beyond cephalothorax. Legs with rami 3-segmented, with spine formula ,3; outer. Figs. 1682-1685.—Cyclops bisetosus. Fig. 1682.—Leg 3. Fig. 1684.—Leg 5. Fig. 1683.—Leg 4. Fig. 1685.—Genital somite and leg 6, male. margins of exopods without hairs ; uniting lamella with a small rounded prominence on either side, bearing a few small spines on posterior face ; seg. 3 of endopod rather short. Endopod 3 of leg 4 generally about lj times as long as wide ; outer apical spine much shorter than inner (63-81%), the latter a little longer than the segment; outer seta reaching beyond the spine. Leg 5, basal segment broad ; seg. 2 nearly twice as long as wide, with slender apical seta and inner subapical spine, which is a little longer than the segment. Egg-sacs large, closely pressed to Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Gurney, Robert. London : Ray Society


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Keywords: ., bookcentury1900, books, booksubjectcopepoda, booksubjectcrustacea