Sphaeroma quadridentatum (Say, 1818)

Fig. 4E

Sphaeroma quadridentata Say, 1818: 400-401; De kay 1844: 44; White 1847: 102; Harger 1873 in Verrill, Smith and Harger 1873: 275, pl.5, fig. 21; Kensley and Schotte 1989: 234, fig. 10.

Sphaeroma quadridentatum .- Harger 1880: 368-370, pl. 9, figs. 53, 54; Smith 1964: 103, pl. 15, fig. 27; Miller 1968: 8, fig. 3; Schultz 1969: 128, fig. 183; Kussakin 1971: 394, fig. 248;

Type locality.

Saint Catherine’s Island, Georgia.

Material examined.

USA. 4 ♂♂ (up to 6 mm); 2 ♀♀ (up to 5 mm); Virginia, Gloucester; 17 Apr. 1975; E. L. Bousfield leg.; CMNC 1992-0583 . 4 ♂♂ (up to 6 mm); 8 ♀♀ (up to 5 mm); Pawley’s Greek, Carolina; 17 Mar. 1915; E. L. Bousfield leg.; CMNC 2023-0250 . 2 ♂♂ (up to 6 mm); 3 ♀♀ (up to 5.5 mm); South Carolina; 16 May 1975; D.R. Calder leg.; CMNC 2023-0251 .

Distribution.

Georgia, Florida, Long Island Sound, Connecticut, New Haven County, West Haven, Savin Rock. It is common on the southern shore of New England (Harger 1880; Kensley and Schotte 1989).