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FAMILY BRACHINECTIDAE Daday de Dées. 
Genus Branchinecta Verrill. 
Branchinecta paludosa (O. F. Miiller). 
Cancer paludosus Mixizr, 1788, p. 10, pl. 48, figs. 1-8. 
~ Cancer stagnalis Fasricius, 1780, p. 247 (non LINNAEUS). 
Cancer paludosus Hmersst, 1790-1804, p. 118, pl. 35, figs. 3-5; 
Branchipus paludosus Kr6yER, 1838, p. 319, No. 41; Gruss, 1853, p. 137; REIn- 
HARDT, 1857, p. 73; DyBowsk1, 1860, p. 200, Pl. X, figs. 7-8; Packarp, 
1867, p. 295; LiLtusEBorG, 1872, p. 842; SanLBeRG, 1875, p. 320; Dapay 
DE Dé&Es, 1890, p. 35, figs. 1-3. 
' Branchipus middendorfianus FiscuER, 1851, p. 153, pl. VII, figs. 17-23; Gruss, 
1853, p. 136. 
Genus Branchipus (?) Barrp, 1852, p. 29. 
Branchipus groenlandicus, VERRILL, 1869, p. 253; and 1870, p. 244-6, figs. 7-10. . 
Branchinecta arctica and groenlandica VERRILL, l.c.; and PACKARD, 1873, p. 621. 
Branchipus (Branchinecta) arcticus and Verilli Mrmrs, 1877, p. 105, pl. IV, fig. 1. 
- Branchinecta paludosa VERRILL, l.c.; SARs, 1874, p. 89; 1897, p. 487 , pl. 30 fig. 
1-2; 1896, p. 41, pl. VI-VIII; Litusepore, 1877, p. 4; 1888, p. 154; 
PacKARD, 1883, p. 336, pl. IX, X; Wrerzesx1, 1883 (1882); WrESENBERG- 
Lunp, 1894, p. 89; VANHOFFEN, 1897, p. 159-75; Exman, 1905, p. 14; 
DapAy DE Diss, 1910, p. 160; SrEPHENSEN, 1917, p. 285; HABERBOSCH, 
1920, p. 52; JoHANSEN, 1921, p. 25. (“Can. Field-Nat.’’) 
The above bibliography shows clearly how the species finally (Packard) 
got its scientific name, and it became recognized, that all the other species of 
the same genus in the Arctic are only synonyms of B. paludosa. Only the most 
sc ig works published since the seventies are given above. The specimens 
follow: 
EXPEDITION RECORDS 
About 30 nauplii and metanauplii from beach-pond at Collinson point, 
Arctic Alaska, June 22, 1914. 
10 metanauplii and immature ones from same pond as preceding ones, 
July 10, 1914. 
3 males, one female, from pool on Barter island, Arctic Alaska, July 17, 
1914. D. Jenness coll. 
Many males and females from lagoon-pond at Martin point, Arctic Alaska, 
July 26, 1914. 
5 males, 5 females, from ponds on Herschel island, Yukon Territory, August 
13-14, 1914. 
5 males and 3 females from tundra-pond at Young point, Northwest 
Territories, July 18, 1916. 
About 40 nauplii and metanauplii from ponds on Chantry island (Bernard 
harbour), Northwest Territories, June 17, 1916. 
One metanauplius, hatched from hibernating eggs, middle of June, 1916, 
lake inland at Bernard harbour. 
4 males and 6 females from shallow pond on sandflats at Bernard harbour, 
June 30, 1916. Also immature specimens from brackish pond here, same date. 
7 males and 9 females from same shallow pond as preceding ones. July 6, 
1916. 
