Maryland
43 species recorded, 37 of them obligate subterranean
8 of these have been recorded nowhere else, which is usual for subterranean fauna: a species is often known from a single locality.
By county
32 of 43 species carry a county. The remaining 11 are recorded to the state only.
- Allegany 3 species
- Alleghany 1 species
- Anne Arundel 2 species
- Baltimore 2 species
- Calvert 1 species
- Carroll 1 species
- Cecil 3 species
- Charles 2 species
- Dorchester 1 species
- Frederick 3 species
- Garret 1 species
- Garrett 9 species
- Harford 1 species
- Howard 1 species
- Montgomery 7 species
- Prince George's 2 species
- Prince Georges 1 species
- Queen Anne's 1 species
- Saint Mary's 2 species
- Talbot 1 species
- Washington 15 species
- Worchester 1 species
County is the finest resolution published. Coordinates are withheld as a matter of policy, not because they are missing.
What is here
- Amphipoda
- 18 species
- Isopoda
- 8 species
- Tricladida
- 5 species
- Araneae
- 3 species
- Chordeumatida
- 2 species
- Littorinimorpha
- 2 species
- Entomobryomorpha
- 2 species
- Harpacticoida
- 1 species
- Coleoptera
- 1 species
- Cyclopoida
- 1 species
How they use caves
- Stygobiont
- 33 species
- Troglophile
- 4 species
- Troglobiont
- 4 species
- Stygophile
- 2 species
What material exists
- Museum material
- 30 of 43 species
- Published sequences
- 10 of 43 species
Species
Open these in Browse to filter by habitat, rank, or group.
| Species | Common name | Group | Class | Status |
|---|---|---|---|---|
| Bryocamptus morrisoni | Morrison's Cave Copepod | Harpacticoida | Stygobiont | G3G4 |
| Caecidotea alleghenyensis | Allegheny Spring Isopod | Isopoda | Stygobiont | G1G2 |
| Caecidotea franzi | Franz's Cave Isopod | Isopoda | Stygobiont | G2G4 |
| Caecidotea nordeni | Norden's Groundwater Isopod | Isopoda | Stygobiont | GH |
| Catops gratiosus | Coleoptera | Troglophile | G5 | |
| Conasellus kenki | Isopoda | Stygobiont | G3 | |
| Conasellus pricei | Price's Cave Isopod | Isopoda | Stygobiont | G5 |
| Conotyla blakei | Chordeumatida | Troglophile | G4 | |
| Crangonyx dearolfi | Pennsylvania Cave Amphipod | Amphipoda | Stygobiont | G2 |
| Dendrocoelopsis americana | Tricladida | Stygobiont | G3 | |
| Diacyclops chrisae | Cyclopoida | Stygobiont | ||
| Eidmannella pallida | Pallid Cave Spider | Araneae | Troglophile | GNR |
| Fontigens bottimeri | Appalachian Springsnail | Littorinimorpha | Stygobiont | G2G3 |
| Fontigens tartarea | Organ cavesnail | Littorinimorpha | Stygobiont | G2 |
| Gammarus minus | Amphipoda | Stygophile | GNR | |
| Oreonetides beattyi | Beatty's Sheetweb Cave Spider | Araneae | Troglobiont | GNR |
| Phagocata morgani | Tricladida | Stygophile | G4 | |
| Porrhomma cavernicola | Appalachian Cave Spider | Araneae | Troglobiont | G5 |
| Pseudobaicalasellus holsingeri | Holsinger's Cave Isopod | Isopoda | Stygobiont | G5 |
| Pseudobaicalasellus mausi | Isopoda | Stygobiont | G2 | |
| Pseudobaicalasellus vandeli | Vandel's Cave Isopod | Isopoda | Stygobiont | G3G4 |
| Sinella cavernarum | Entomobryomorpha | Troglobiont | G5 | |
| Sinella hoffmani | Hoffman's Cave Springtail | Entomobryomorpha | Troglobiont | G5 |
| Sphalloplana buchanani | Buchanan's Cave Flatworm | Tricladida | Stygobiont | G1G2 |
| Sphalloplana hoffmasteri | Hoffmaster's Cave Flatworm | Tricladida | Stygobiont | G3G4 |
| Sphalloplana pricei | Refton Cave Flatworm | Tricladida | Stygobiont | G2G3 |
| Stygobromus allegheniensis | Amphipoda | Stygobiont | G5 | |
| Stygobromus amicus | Friendly Cave Amphipod | Amphipoda | Stygobiont | G1 |
| Stygobromus biggersi | Biggers' Cave Amphipod | Amphipoda | Stygobiont | G2G4 |
| Stygobromus caecilius | Cecil Groundwater Amphipod | Amphipoda | Stygobiont | G1 |
| Stygobromus emarginatus | Greenbrier Cave Amphipod | Amphipoda | Stygobiont | G3 |
| Stygobromus felleri | Feller's Groundwater Amphipod | Amphipoda | Stygobiont | G1 |
| Stygobromus foliatus | Rappahannock Spring Amphipod | Amphipoda | Stygobiont | G2 |
| Stygobromus franzi | Franz's Cave Amphipod | Amphipoda | Stygobiont | G3G4 |
| Stygobromus gracilipes | Amphipoda | Stygobiont | G3G4 | |
| Stygobromus indentatus | Tidewater Amphipod | Amphipoda | Stygobiont | G3 |
| Stygobromus kenki | Rock Creek Groundwater Amphipod | Amphipoda | Stygobiont | G2 |
| Stygobromus paveki | Pavek's Groundwater Amphipod | Amphipoda | Stygobiont | |
| Stygobromus paxillus | Prettyboy Groundwater Amphipod | Amphipoda | Stygobiont | G1 |
| Stygobromus pizzinii | Pizzini's Cave Amphipod | Amphipoda | Stygobiont | G3G4 |
| Stygobromus sextarius | Capital Area Groundwater Amphipod | Amphipoda | Stygobiont | G1 |
| Stygobromus tenuis | Amphipoda | Stygobiont | G4 | |
| Trichopetalum stannardi | Chordeumatida | Troglophile |
About this list
Compiled from published records, museum material, and survey reports, and recorded to 22 counties. Coordinates are never published; distribution is published generalized to county and karst region. See the Data Sensitivity Policy.
Absence from this list does not mean absence from the ground. Most caves have never been surveyed, and subterranean fauna is consistently under-recorded. If you know of a species here that is missing, please tell us.