16 PROCEEDINGS OF THE NATIONAL MUSEUM VOL. 120 
DistTRIBUTION.—Southern California at Morro Bay, Catalina 
Island, and Point Loma. 
Family Corophiidae 
Corophium acherusicum Costa 
Corophium acherusicum Costa, 1857, p. 232.—Shoemaker, 1947, p. 53, figs. 2, 3; 
1949, p. 76.—Barnard, 1954b, p. 36; 1959, p. 38; 1961, p. 182; 1964, p. 111, 
chart 5. 
MaTERIAL.—Stations 9(1), 15(5), 16(1438), 21(1), 23(37). 
DisTRIBUTION.—Cosmopolitan in temperate and tropical waters, 
especially in bays and harbors. 
Corophium baconi Shoemaker 
Corophium baconi Shoemaker, 1934, pp. 356-359, fig. 1; 1949, p. 82.—Barnard, 
1959, p. 38; 1961, p. 182; 1964, pp. 111-112, chart 16. 
MAaTERIAL.—Station 15(4). 
DistTRIBUTION.—Peru to the Bering Sea. 
Corophium spinicorne Stimpson 
Corophium spinicorne Stimpson, 1857, pp. 514-515.—Shoemaker, 1949, pp. 74-76, 
fig. 6—Barnard, 1952, p. 33; 1954b, pp. 36-37. 
MATERIAL.—Stations 26(327), 27(5), 28(1). 
Distrisution.—Alaska to Morro Bay, Calif. 
Corophium uenoi Stephensen 
Corophium uenoi Stephensen, 1932, pp. 494-498, figs. 3, 4—Barnard, 1952, pp. 
28-32, pls. 8, 9; 1959, p. 39.—Nagata, 1960, p. 178.— Barnard, 1961, p. 183; 
1964, p. 112, chart 16. 
MATERIAL.—Stations 16(260), 17(8), 21(2), 22(1), 23(31), 26(18), 
27(291), 28(517), 29(4), 30(4). 
DistriBpuTIon.—Japan; Morro Bay to Bahia de San Quintin in 
the Californias. 
Ericthonius sp. [cf. brasiliensis (Dana)] 
MATERIAL.—Station 27 (1 juv.). Probably this specimen is the 
juvenile of E. brasiliensis. See Sars (1895, pl. 215) for illustration and 
Barnard (1959 and 1964) for references and distribution of this species. 
DistTrIBUTION.—Cosmopolitan (except in polar regions) in bays and 
harbors and the open-coast intertidal. 
Family Eusiridae 
Pontogeneia minuta Chevreux 
Pontogeneia minuta Chevreux, 1908, pp. 1-3, fig. 1—Barnard, 1959, p. 23, pl. 3; 
1964, p. 106, figs. 21 B, C. 
MATERIAL.—Stations 26(4), 27(1). 
