. Fresh-water biology. Freshwater biology. Fig. 847. Neoechinorhynchus tenellus. Proboscis, X 7%; hoolts and embryo, X 230. (After Van Cleave.) Body small, both ends curved strongly ventrad. Posterior two-thirds of body markedly attenuated. Female to 13 mm. long, mm. in maximtim breadth; males 2 to 8 mm. long, mm. broad. Pro- boscis nearly cylindrical, mm. long by mm. wide. Anterior hooks 90 to no /i long, heavy; middle hooks 38 11 long; basal hooks 27 ix. long. Embryos 37 to 45 by 12 to 16 )Li. Intestine of Esox lucius L. from Lake Marquette near Bemidji, Minnesota. 8
. Fresh-water biology. Freshwater biology. Fig. 847. Neoechinorhynchus tenellus. Proboscis, X 7%; hoolts and embryo, X 230. (After Van Cleave.) Body small, both ends curved strongly ventrad. Posterior two-thirds of body markedly attenuated. Female to 13 mm. long, mm. in maximtim breadth; males 2 to 8 mm. long, mm. broad. Pro- boscis nearly cylindrical, mm. long by mm. wide. Anterior hooks 90 to no /i long, heavy; middle hooks 38 11 long; basal hooks 27 ix. long. Embryos 37 to 45 by 12 to 16 )Li. Intestine of Esox lucius L. from Lake Marquette near Bemidji, Minnesota. 8 (5) Terminal hooks usually less than 90 m long. Embryos over 50 m long. Neoechinorhynchus cylindratus (Van Cleave) 1913. Large, straight-bodied. Female 10 to 15 mm. long, mm. in maximum width, just behind proboscis. Male to mm. long, to mm. in maximum breadth near anterior end. Proboscis slightly broader ( mm.) than long ( mm.). Anterior hooks 79 to 97 /i long, heavy, strongly recurved, center hooks 37 M long, basal hooks 21 to 25 ;u long. Em- bryos 49 tosin long by 15 to 21 M broad. In intestine of Micropterus salamoides (La- c6p.). Pelican Lake, Minnesota, and of An- guUla ckrysypa, Woods Hole, 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 Ward, Henry Baldwin, 1865-1945; Whipple, George Chandler, 1866-1924. joint author. New York, John Wiley & sons, inc. ; [etc. ,etc. ]
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectfreshwa, bookyear1918
