. Fresh-water biology. Freshwater biology. 39° FRESH-WATER BIOLOGY 73 (70) Distomes moderate in size, thick bodied; ovary and testes lobed or coarsely branched; uterine coil chiefly lateral to acetab- ulum. Family Teogloteematidae Odhner 1914. Distomes of small to moderate size with compressed body. Skin with spines in groups. Ventral surface flat, dorsal arched. Musculature and suckers poorly developed. Intestinal crura do not reach posterior end. Excretory bladder Y-shaped, or tubular. Genital pore close to acetabulum. Cirrus sac lacking. Testes symmetrical, postacetabular. Ovary dextral, im
. Fresh-water biology. Freshwater biology. 39° FRESH-WATER BIOLOGY 73 (70) Distomes moderate in size, thick bodied; ovary and testes lobed or coarsely branched; uterine coil chiefly lateral to acetab- ulum. Family Teogloteematidae Odhner 1914. Distomes of small to moderate size with compressed body. Skin with spines in groups. Ventral surface flat, dorsal arched. Musculature and suckers poorly developed. Intestinal crura do not reach posterior end. Excretory bladder Y-shaped, or tubular. Genital pore close to acetabulum. Cirrus sac lacking. Testes symmetrical, postacetabular. Ovary dextral, immediately in front of testes, lobed or branched. Laurer's canal present. Vitel- laria very extensive, covering dorsal surface save for narrow median strip. Uterus long, in open loops, or shorter in tight coil; eggs in first case small, in second moderately large. Parasites of buds and carnivores, living usually by pairs in cyst-Kke cavities. The monostome, Collyriclum coki',(p. 384), is regarded by Odhner as properly a member of this family. Only American genus Paragonimus M. Braun 1899. Body opaque, thick, nearly rounded in cross section. Skin with spines. Pharynx almost spherical, crura wavy with irregular walls. Testes lobed, symmetrical, in hindbody. Ovary lobed, lateral, pretesticular, and postacetabular. Vitellaria extend en- tire length of body, lateral and dorsal. Lam-er's canal and rudimentary receptaculum present. Uterus in coil, postacetabu- lar, opposite ovary. Eggs large, thin-shelled, laid before cleav- age begins. Encysted, in pairs usually, in lungs of mammals. Single American species. Paragonimus kelUcotti Ward 1908. Parasitic in dog, cat, and pig. Ohio, Illinois, Wisconsin, Minnesota, Kentucky. Confused in records with the hvunan lung fluke (P. itiestermanii Kerbert) which has been positively determined in North America only in a few himian cases, all of which are probably imported from Asia. Fig. 677. Paragonimus kelUcotti. Total preparation, ventral surface
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectfreshwa, bookyear1918
