Stygobromus indentatus (Holsinger 1967)

Stygobromus indentatus (Holsinger)

Stygonectes indentatus Holsinger, 1967:52–55, fig. 11 [type-locality: outlet of drain, 4.8 km NW of Suffolk, Nansemond Co., Virginia]; 1969b:26.—Culver and Holsinger, 1969:632.—Holsinger, 1972:61.

Stygobromus indentatus (Holsinger).—Karaman, 1974:113.—Holsinger, 1977:262.

MATERIAL EXAMINED.—NORTH CAROLINA. Nash Co.: shallow well at Bailey, 1 , donated by R. S. Fox, collected 24 Mar 1974. VIRGINIA. Isle of Wight Co.: seep, 3.2 km SE of Bartlett, 1 , L. Hubricht, 2 Apr 1944.

DIAGNOSIS.—This species is distinguished by the diagnosis and description of Holsinger (1967:53–55). Largest males, 9.7 mm; largest females, 8.2 mm.

DISTRIBUTION AND ECOLOGY.—The range of S. indentatus extends from Isle of Wight and Nansemond counties in the Tidewater area of southeastern Virginia southwestward to Nash Co., North Carolina, and covers a linear distance of 193 km. A large disjunction, probably due to the lack of collecting, occurs in the range between the Virginia and North Carolina localities. This species is recorded from one seep and two drain outlets in Virginia and a shallow well in North Carolina, all habitats being developed in Coastal Plain sediments of Miocene age. The female from the seep in Isle of Wight County was collected along with 15 specimens of S. araeus. Additional information on the ecology of this species was given by Holsinger (1967, 1972).

Stygobromus indentatus, the Tidewater Stygonectid amphipod is a species of crustacean in family Crangonyctidae. It is native to Maryland, North Carolina and Virginia in the United States. Its natural habitat is groundwater aquifers in the Tidewater region.