. Fresh-water biology. Freshwater biology. 31" ^V:,-^L^-*''*. ' "^ ;^-5^»'€f^ft?^^s^^^). .1 MM. I- FlG. losi. Sida cryslalUna. (Unless otherwise indicated all figures were drawn especially for this chapter.) Color yellowish-hyaline, sometimes with brilhant blue spots. Length, ?, mm.; g, mm. Common in lakes and ponds among weeds. 5 (4) Dorsal ramus of antenna 2-jointed 6 6 (9) With lateral expansion on basal joint of dorsal ramus of antenna. Latona Straus 1820 . 7 Large, tongue-shaped projection on ventral side of head, its ventral surface concave. Ventral ramus of ant
. Fresh-water biology. Freshwater biology. 31" ^V:,-^L^-*''*. ' "^ ;^-5^»'€f^ft?^^s^^^). .1 MM. I- FlG. losi. Sida cryslalUna. (Unless otherwise indicated all figures were drawn especially for this chapter.) Color yellowish-hyaline, sometimes with brilhant blue spots. Length, ?, mm.; g, mm. Common in lakes and ponds among weeds. 5 (4) Dorsal ramus of antenna 2-jointed 6 6 (9) With lateral expansion on basal joint of dorsal ramus of antenna. Latona Straus 1820 . 7 Large, tongue-shaped projection on ventral side of head, its ventral surface concave. Ventral ramus of antennae 3-jointed. Long setae on posterior margin of valves. Eye dorsal, far from optic ganglion. $ with copulatory organ; no hook on first 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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Photo credit: © Central Historic Books / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectfreshwa, bookyear1918
