. British fresh-water Copepoda. --. Copepoda; Crustacea. 72 BRITISH FRESH-WATER COPEPODA. longer than seg. 2, hairy on inner side ; seg. 2 bearing a long median terminal seta and an outer and inner spine, the latter much the longer. Egg-sacs dark brown, closely pressed to abdomen. Colour: Occasionally nearly colourless, but generally richly coloured, and appearing almost black to naked. Fig. 1313.—Cyclops fuscus, nauplius, stage IV. eye ; rami and abdomen bluish green ; thorax dark green, with blue patches ; receptaculum brick-red. Male.—Length 1-19 mm. Antennule with long parallel-sided aesth


. British fresh-water Copepoda. --. Copepoda; Crustacea. 72 BRITISH FRESH-WATER COPEPODA. longer than seg. 2, hairy on inner side ; seg. 2 bearing a long median terminal seta and an outer and inner spine, the latter much the longer. Egg-sacs dark brown, closely pressed to abdomen. Colour: Occasionally nearly colourless, but generally richly coloured, and appearing almost black to naked. Fig. 1313.—Cyclops fuscus, nauplius, stage IV. eye ; rami and abdomen bluish green ; thorax dark green, with blue patches ; receptaculum brick-red. Male.—Length 1-19 mm. Antennule with long parallel-sided aesthetes (sense- cylinders) ; of these there are 2 on seg. 1 and 1 each on segs. 2, 3, 4, 5, 6, 8, 9. These cylinders have blunt ends, often rather dilated, and there is generally a granular mass at the end which has the appearance of. 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