. Fresh-water biology. Freshwater biology. tS (8) Post-genital region 8-segmented, apical article of male clasping antenna compressed Artemia. Only one species. . Artemia salina (Linnaeus) 1851. Connecticut, Utah, California, Lower California. This species is remarkable for its ability to live in extremely saline water. It is frequently found in salt evaporating basins. The form is variable, and several varieties have been described. Fig. 1021. Artemia salina. Head of male, dorsal view. X 4. (After Daday.) * 16 (7) Head of male often bearing a frontal appendage or a laminar appendage on the ba
. Fresh-water biology. Freshwater biology. tS (8) Post-genital region 8-segmented, apical article of male clasping antenna compressed Artemia. Only one species. . Artemia salina (Linnaeus) 1851. Connecticut, Utah, California, Lower California. This species is remarkable for its ability to live in extremely saline water. It is frequently found in salt evaporating basins. The form is variable, and several varieties have been described. Fig. 1021. Artemia salina. Head of male, dorsal view. X 4. (After Daday.) * 16 (7) Head of male often bearing a frontal appendage or a laminar appendage on the basal segment of the clasping antemia. Family Chirocephalidae . 17 17 (3°) Frontal appendage of male variable, rather short; terminal segment of copulatory organ smooth Eubranchipus . 18 18 (25) Body segments of male and female all superficially unarmed. 19 19 (20) Frontal appendage of male short, about as long as basal joint of sec- ond antenna; lanceolate, margin denticulate. Eubranchipus vernalis Verrill 1869. Massachusetts, New Jersey, Indiana, Michigan. This species appears in small quiet pools soon after the snow disappears in spring, or even in mid-winter, but has not been observed during the summer months. Fig. 1022. Eubranchipus vernalis. Head of male, side view. X 4. (After Packard.). 20 (19) Frontal appendages of male when extended longer than basal joint of second antenna 21 21 (22) Frontal appendages of male attenuate, middle fourth serrate. Eubranchipus holmani (Ryder) 1879. This species was first discovered in New Jersey and has since been ob- served on Long Island, New York. Packard ('83) confused this species with Branchinella gissleri Daday. Fig. 1023. EubraiKhi^us holmani. Head of male; A, side view; S, front view. A ^^^J B ^ ''â ^^'" Daday.) 32 (si) Frontal ajpipendages of male broad, lanceolate, lobate on margins. 23. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloratio
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectfreshwa, bookyear1918
