. Fresh-water biology. Freshwater biology. 344 FRESH-WATER BIOLOGY 46 (45) Each chitinous stalk bears a single tenninal branch set with spines 47 47 (50) The spines on the terminal branch are jointed 48 48 (49) Each spine consists of three joints. Stalk long, somewhat variable in shape Dalyellia rheesi von GtslE Length 1 mm. When swim- ming freely the anterior end is broadly rounded, in crawling, trmicated as shown in figure. Integument colorless with nu- merous delicate rhabdites. Mesenchyma colored by sepia- brown to cinnamon-red gran- ules in a clear yellow fluid. In the living anima
. Fresh-water biology. Freshwater biology. 344 FRESH-WATER BIOLOGY 46 (45) Each chitinous stalk bears a single tenninal branch set with spines 47 47 (50) The spines on the terminal branch are jointed 48 48 (49) Each spine consists of three joints. Stalk long, somewhat variable in shape Dalyellia rheesi von GtslE Length 1 mm. When swim- ming freely the anterior end is broadly rounded, in crawling, trmicated as shown in figure. Integument colorless with nu- merous delicate rhabdites. Mesenchyma colored by sepia- brown to cinnamon-red gran- ules in a clear yellow fluid. In the living animal the brain region appears clear white and the ventral surface lighter in color than the dorsal, eyes black. In pools along Erie canal. Fig. 610. Dalyellia rheesi. (A) slightly compressed: te, testes; «, yolk gland; vs, vesicula seminalis; ch, chitinous portion of cirrus; dg, duct of yolk gland; be, bursa copu- latrix; go, genital pore; e, egg; ov, ovary. X 60. (B) Male copula- tory apparatus: Pr, cirrus tube; meg, male genital canal; d, open- ing of genital canal into common atrium; st, short stalk of chitinous piece. X 600. (C) Median ventral grooved piece (mv) turned back; 5^ variation in stalk. X600. (After von Grafi.). 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
