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Superfamily Aselloidea - Waterslaters

Water Hoglouse, Asellus sp - Caecidotea Water Louse - Caecidotea Freshwater isopod - Caecidotea Oregon Isopod - Caecidotea Asellota - Caecidotea Underwater... crustacean? - Caecidotea Great Lakes Waterslater - Caecidotea racovitzai - male Great Lakes Waterslater - Caecidotea racovitzai
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Crustacea (Crustaceans)
Class Malacostraca (Malacostracans)
Superorder Peracarida (Marsupial Crustaceans)
Order Isopoda (Isopods)
Suborder Asellota (Asellotes)
Superfamily Aselloidea (Waterslaters)
Numbers
2 families, both in our area. Stenasellidae only contains 2 species in our area and both are small-ranged stygobionts in FL and TX
Identification
Family identification in Asellota is fairly simple: Asellidae has the pleonites small and ring-like, usually forming a narrow poorly visbible "pedicel" to the telson, while Stenasellidae has much larger pleonites that are always visible and often reach the margins. Stenasellids are also all stygobionts, so any heavily pigmented eyed waterslaters you find on the surface will always be Asellidae