ART. IS SYNOPSIS OF CALAXOID CRUSTACEA — MAESH 13 



Occurrence. — Poppe described E. afflnis from material collected 

 near the mouths of several German rivers. It may be found in salt, 

 brackish, or fresh water. It occurs in France, Germany, Sweden, 

 England, and Scotland, in the fresh-water lagoons of the Caspian 

 Sea at the mouth of the Volga, in fresh water in central Asia, and on 

 Kolguev Island. Herrick (1884) was the first to report it in Amer- 

 ica, finding it in the shallow bays along the Gulf of Mexico. Foster 

 (1904) gave localities near New Orleans. Pearse (1906) recorded it 

 from Nantucket Island and wrote me that he had seen it in 1911 at 

 Tampico, Mexico. Marsh (1912) reported it from St. Johns River 

 and Little Lake George, Fla., from Black Bayou, Miss., and Flat 

 Lake, La. It has also been found in Shreveport, La. Willey (1923) 

 found it in Lake St. John, a fresh-water lake. Its distribution is 

 interesting, for in many cases it has been found a long distance from 

 bait water. 



EURYTEMORA GRACILIS (Sars) 



Temorella gracilis Sars, 1898, p. 336, pi. 8, figs. 8-18. 



Euri/temora gracilis Wili-et, 1920, p. UK, fig. 3, 3 and //.— Rylov, 1930, p. 228, 

 tig. 75, 1-4. 



E. gracilis is a slender form closely resembling E. arfflnis; it differs 

 from this species in that the head is somewhat broader, the wings of 

 the last cephalothoracic segment flare out laterally, and the last 

 abdominal segment and the furca are not armed with spines. 



Length: Female, 1.4 mm; male, 1.25 mm. 



Occurrence. — Sars reported it in the lower part of the river Jana. 

 Willey found a single damaged female in the collections of the 

 Canadian Arctic expedition. 



EURYTEMORA CANADENSIS Marsh 



Plate 7 ; Plate 8, Figures 5, 6 



Eurytemora canadensis Marsh, 1920, pp. 4 J, 5 J, pi. 1, tigs. 9-12, pi. 2, figs. 

 1, 2, 4, 7. 



Female. — Cephalothorax oval, the greatest width being forward 

 of the middle. (PI. T, fig. 6.) The last cephalothoracic segment 

 extends backward but is not produced laterally (pi. 8, fig. 5) ; the 

 wings are rounded and the margins are armed with a few minute 

 hairs. The first abdominal segment is slightly expanded laterally 

 (pi. 7, fig. 4) and is armed on the outer edge with scattered fine 

 hairs. The first and third abdominal segments are about equal in 

 length and are about one and one-half times the length of the second. 

 The f ureal rami are slender, about eight times as long as wide ; they 

 are ciliate on both inner and outer borders except distad of the lateral 

 seta, where there are one or two hairs; there are some hairs on the 

 surface. 



