. Fresh-water biology. Freshwater biology. 45 (44) With anterior end attenuated, not bent 46 46 (47) Vulva one-third total length from anterior tip. No spines on caudal tip. . Camallanus oxycephalus Ward and Magath. Female slenderer than preceding species, 25 mm. long, mm. broad, straight through entire length. Oral armature smaller. First esophagus by mm.; second mm. wide. Male unknown. In intestine of white bass and black llG. 823. Camallanus oxycephalus. Anterior part of female. X 70. (After Ward and Magath.) 47 (46) Vulva behind center of body, female Three s
. Fresh-water biology. Freshwater biology. 45 (44) With anterior end attenuated, not bent 46 46 (47) Vulva one-third total length from anterior tip. No spines on caudal tip. . Camallanus oxycephalus Ward and Magath. Female slenderer than preceding species, 25 mm. long, mm. broad, straight through entire length. Oral armature smaller. First esophagus by mm.; second mm. wide. Male unknown. In intestine of white bass and black llG. 823. Camallanus oxycephalus. Anterior part of female. X 70. (After Ward and Magath.) 47 (46) Vulva behind center of body, female Three small spines on caudal tip of Camallanus Irispinosus (Leidy) 1851. Mouth large, valves with 8 radiating lines on each side of unstriated median band, making 16 rays on each valve. Male 6 mm. long, to mm. broad. Anus mm. from caudal tip. Two spicules, and mm. long. Female 12 mm. long, to mm. broad. First esophagus by 0,12 mm; second mm. long. Anus mm. from caudal tip which bears three minute points. Vulva with prominent hps. In small intestine of Emys guttata, E. reticulata, E. serpata, Chelydra serpentina. Philadel- phia (Leidy). 48 (43) Lips not conspicuous; esophageal regions similar in structure, not sharply separated. Male with preanal sucker. Family Cucullanidae Stossich 1898 . 49 Mouth elUptical, with long axis dorso-ventral, bounded by two lateral valves recalling those of Camallanus. Esophagus pestle-shaped but without bulb, two regions appear alike in structure, short, separated only by transverse partition. Male without caudal alae; two equal spicules; preanal sucker without homy ring. Female with vulva not far from center of body. In intestine of fishes. There are in North America numerous species of this genus. Only a few have been described adequately. In the past these forms have often been recorded as Dacnitis Dujardin 1845 and assigned to the Please note that these images are extracted from scanned
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectfreshwa, bookyear1918
