Family Crangonyctidae
Crangonyctidae is a family in the order Amphipoda. Browse 4 named species recorded in this family, or open an individual profile for its available identification and natural-history information.
Species in Crangonyctidae (4)
Northern Lake Crangonyctid
Crangonyx gracilis
Crangonyx gracilis, the northern lake crangonyctid, is a species of amphipod in the family Crangonyctidae. It is found in North America.
Ellis Bog Crangonyctid
Crangonyx richmondensis
"Crangonyx richmondensis is presumed native to three broad areas in North America, northern California to Alaska, the Great Lakes and eastern Canada, and the Atlantic Coastal Plain, from Maine to Florida" (Holisinger 1972; Bousfield 1973; Graening et
Peck's Cave Amphipod
Stygobromus pecki
Stygobromus pecki is a rare species of crustacean known by the common name Peck's cave amphipod. It is endemic to Texas in the United States, where lives in only two springs in Comal County. It is a federally listed endangered species of the United S
Russell's Cave Amphipod
Stygobromus russelli
Identification: highly variable, may be species complex (Holsinger 1972) The species is typically rare, but occasionally a large number of specimens may be found on a single cave visit. Texas considers this to be a "Species of Greatest Conservation N