. Fresh-water biology. Freshwater biology. Figs. 1097, 1097, u. Bosmina obtusirostris. 81 (80) Mucro longer than claws and Bosmina longispina Leydig i860. Frontal sense-hair near junction of antennules. Mucro and antennules long. Shell striated, marks especially plain on head. Transparent. Length, 9, ca. mm. Rare, in lakes. Fig. logS. Bosmina longispina. 82 (77) Antennules united at base, and diverging at apex; numerous long olfactory setae on their ventral side. Bosminopsis Richard 1895. Sole American species Bosminopsis deitersi Richard 1895. In general much like Bos- mina. Bas
. Fresh-water biology. Freshwater biology. Figs. 1097, 1097, u. Bosmina obtusirostris. 81 (80) Mucro longer than claws and Bosmina longispina Leydig i860. Frontal sense-hair near junction of antennules. Mucro and antennules long. Shell striated, marks especially plain on head. Transparent. Length, 9, ca. mm. Rare, in lakes. Fig. logS. Bosmina longispina. 82 (77) Antennules united at base, and diverging at apex; numerous long olfactory setae on their ventral side. Bosminopsis Richard 1895. Sole American species Bosminopsis deitersi Richard 1895. In general much like Bos- mina. Basal part of anten- nules united with each other and head to form very long rostrum; diverging laterally near apex, with long, strag- gling, olfactory setae. Anten- na with 3-jointed rami. Post- abdomen tapering to point at claws; I large spine near claws and several very mi- nute spinules anterior to it. $ with large movable an- tennules; short rostrum; first foot with hook and fiagellum. Length, 9, ca. mm.; $, mm. Lake Charles and Calcasieu Fig. 1099. Bosminopsis deitersi. Kiver, 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
