. Fresh-water biology. Freshwater biology. MM, 199 (198) Infero-posteal angle rounded; first foot of female with stout hook. Pleuroxus hamulatus Birge 1910. Infero-posteal angle rounded, without teeth; valves reticulated; also marked by very fine striae, which run nearly longitudinally. Rostrum long, recurved. Keel of labrum small, rounded, prolonged. Post-abdomen much like P. denticulatus, but with apex more rounded and denticles not so crowded there. Denticlesabout 12-14. J unknown. Color hom-yellow, often dark on dorsal side like P. striatus. Length, 9, ca. mm. New England and south


. Fresh-water biology. Freshwater biology. MM, 199 (198) Infero-posteal angle rounded; first foot of female with stout hook. Pleuroxus hamulatus Birge 1910. Infero-posteal angle rounded, without teeth; valves reticulated; also marked by very fine striae, which run nearly longitudinally. Rostrum long, recurved. Keel of labrum small, rounded, prolonged. Post-abdomen much like P. denticulatus, but with apex more rounded and denticles not so crowded there. Denticlesabout 12-14. J unknown. Color hom-yellow, often dark on dorsal side like P. striatus. Length, 9, ca. mm. New England and southern states; prob- ably a coastal form; not reported from north central region. Common in pools and weedy Fig. 1142. Pleuroxus hamulatus. a, first foot; b, 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. ]


Size: 1450px × 1723px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bookcentury1900, bookdecade1910, booksubjectfreshwa, bookyear1918