. Fresh-water biology. Freshwater biology. _ Fig. 733. _ Proteocephalus macrocepkalus. a. Head. X 70; &, ripe proglottid showing female reproductive organs. La Rue.) X40. (After 37 (36) Genital pore on lateral margin anterior to center of proglottid. Proteocephalus perplexus La Rue 1911. Length as much as 155 mm.; maximum breadth mm. First proglottids much broader than long; mature proglottids mm. broad by mm. long; ripe proglottids quadrate or longer than broad. Suckers, to mm. long by to mm. broad. No vestig3 of fifth sucker. Genital pore at end of
. Fresh-water biology. Freshwater biology. _ Fig. 733. _ Proteocephalus macrocepkalus. a. Head. X 70; &, ripe proglottid showing female reproductive organs. La Rue.) X40. (After 37 (36) Genital pore on lateral margin anterior to center of proglottid. Proteocephalus perplexus La Rue 1911. Length as much as 155 mm.; maximum breadth mm. First proglottids much broader than long; mature proglottids mm. broad by mm. long; ripe proglottids quadrate or longer than broad. Suckers, to mm. long by to mm. broad. No vestig3 of fifth sucker. Genital pore at end of first fourth or half of proglottid. Cirrus-pouch to mm. long, extending to one-third or one-fifth width of proglot- tid. Testes 135 to 155 in number, in one layer an- terior to ovary. Vagina .J- anterior to cirrus-pouch, ' never crossing same. Vi- tellaria e-xtend to posterior margin of proglottid and parallel to it. Uterus with 20 to 25 lateral pouches on each side. Habitat: In intestine of Fig. 734. Proteocephalus perplexus. o. Head, X 36; 6, ripe proglottid, Ajnia cdva reconstruction showing male reproductive organs (.ti, testes), and ovary. Patostomus. Illinois,JNortn Note also position of sphincter vaginae (ua5). X 36. (After La Rue.) 38 (35) Testes number less than 100 39 39 (40) Suckers with pointed apex and shallow cavity. Proteocephalus singularis La Rue 1911. Strobila long, slender, up to 170 or even 250 mm.; maximum breadth to mm. Head small, suckers large. No vestige of fifth sucker. First proglottids broader than long; mature proglottids ram. broad by to mm. long; ripe proglottids longer than broad or quadrate. Old spent proglottids up to mm. long by mm. broad. Genital pore at end of first one-fourth to one-half of proglottid. Testes 75 to 80 or 90, in a. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appea
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectfreshwa, bookyear1918
