. Fresh-water biology. Freshwater biology. 14 (39) Chitinous portion of cirrus bears two longitudinally placed stalks on one end of which either one or two longitudinal terminal branches are set. The terminal branches may be set with spines 45 (46) Each chitinous stalk bears two terminal branches, one set with spines and one with no spines. —ds Dalyellia Jairchildi von Graff Similar in size and color to D. rkeesi but more slender, with a longer tail and the uterus lies pos- terior to the sexual pore. The egg is round to oval in shape and measures 108 to 140/i. Yolk glands open as in


. Fresh-water biology. Freshwater biology. 14 (39) Chitinous portion of cirrus bears two longitudinally placed stalks on one end of which either one or two longitudinal terminal branches are set. The terminal branches may be set with spines 45 (46) Each chitinous stalk bears two terminal branches, one set with spines and one with no spines. —ds Dalyellia Jairchildi von Graff Similar in size and color to D. rkeesi but more slender, with a longer tail and the uterus lies pos- terior to the sexual pore. The egg is round to oval in shape and measures 108 to 140/i. Yolk glands open as in D. rheesi through a common yolk duct but are not lobed, barely notched. Fig. 609. Dalyellia fairchildi. {A) Male copulatory apparatus. X 430. {B) Chitinous piece enlarged. X 850. ds, ductus seminalis; eae, outer branch with spines folded; eai, inner branch with no spines; mv, median projection; pii, opening of cirrus sheath; pp, cirrus pa- pillae; s, double row of spines; si, stalk; vg, vesicula gran- ulorum; vs, vesicula seminalis; q, transverse bar; qs, transverse spines. (After von Graff.). 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