. Fresh-water biology. Freshwater biology. HIGHER CRUSTACEANS (MALACOSTRACA) 84s 30 (31) Chelae of peraeopods weak, subequal, fingers with terminal hair- tufts. Family AxYIDAE. Only species in North America. Palaemonias ganteri Hay 1903. A typical and char- -~ acteristic fresh-water group, abundant in the tropics, but certain forms are found in tem- perate regions, and their distribution is quite peculiar, they being found at rather isolated localities, re- mote from each other. This discontinuity is a mark of antiquity of the group. One of these isolated forms is found in North Amer- ica, Pal
. Fresh-water biology. Freshwater biology. HIGHER CRUSTACEANS (MALACOSTRACA) 84s 30 (31) Chelae of peraeopods weak, subequal, fingers with terminal hair- tufts. Family AxYIDAE. Only species in North America. Palaemonias ganteri Hay 1903. A typical and char- -~ acteristic fresh-water group, abundant in the tropics, but certain forms are found in tem- perate regions, and their distribution is quite peculiar, they being found at rather isolated localities, re- mote from each other. This discontinuity is a mark of antiquity of the group. One of these isolated forms is found in North Amer- ica, Palaemonias ganteri The nearest place where related. Fig. 131T. Palaemonias ganteri Hay. X i. (After Hay.) Hay, and is blind, living in Afammoth Cave in Kentucky, forms are found is in the West Indies. 31 (30) Chelae of peraeopods inequal, the second pair larger, often much larger, than the first, and very strong. Fingers without terminal hair-tufts. Family Palaemonidae 32 A family abundant in the sea, but also of great importance in the fresh water. All transi- tional stages between life in the sea and in fresh water are found here. (33) Mandible without palpus. Second pair of peraeopods only slightly larger than the first, both of them rather weak. Size of body medium. Palaemonetes 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
