Caudinidae Heding, 1931 (identification resource)
Cherbonniera Sibuet, 1974 (additional source)
Cherbonniera utriculus Sibuet, 1974 (additional source)
Molpadia agassizi (Théel, 1886) accepted as Molpadia agassizii (Théel, 1886) (basis of record)
Molpadia barbouri Deichmann, 1940 (basis of record)
Molpadia blakei (Théel, 1886) (additional source)
Molpadia cubana Deichmann, 1940 (basis of record)
Molpadia musculus Risso, 1826 (additional source)
Molpadia oolitica (Pourtalès, 1851) (additional source)
Molpadia parva (Théel, 1886) (basis of record)
Molpadiidae J. Müller, 1850 (identification resource)
Paracaudina Heding, 1932 (basis of record)
Paracaudina chilensis (J. Müller, 1850) (basis of record)
Paracaudina chilensis chilensis (Müller, 1850) represented as Paracaudina chilensis (J. Müller, 1850) (basis of record)
Paracaudina chilensis obesacauda (H.L. Clark, 1908) (basis of record)

Atlantic Coast of United States of America for Gephyrothuria glauca (Clark, 1908) 
Bahamas Exclusive Economic Zone for Molpadia barbouri Deichmann, 1940 
Bay of Biscay for Cherbonniera utriculus Sibuet, 1974 
Blackpool for Molpadia barbouri Deichmann, 1940 
Blackpool for Molpadia cubana Deichmann, 1940 
Blackpool for Paracaudina chilensis obesacauda (H.L. Clark, 1908) 
Brazil for Molpadia blakei (Théel, 1886) 
British West Indies for Molpadia agassizi (Théel, 1886) 
Cape Hatteras for Gephyrothuria glauca (Clark, 1908) 
Caribbean Sea for Molpadia blakei (Théel, 1886) 
Cuban Exclusive Economic Zone for Molpadia barbouri Deichmann, 1940 
Cuban Exclusive Economic Zone for Molpadia cubana Deichmann, 1940 
Falkland Islands Exclusive Economic Zone for Cherbonniera utriculus Sibuet, 1974 
Grenadian Exclusive Economic Zone for Molpadia parva (Théel, 1886) 
Gulf of Mexico for Molpadia barbouri Deichmann, 1940 
Gulf of Mexico for Molpadia blakei (Théel, 1886) 
Gulf of Mexico for Molpadia oolitica (Pourtalès, 1851) 
Gulf of Mexico for Molpadia parva (Théel, 1886) 
Gulf of Mexico for Paracaudina chilensis obesacauda (H.L. Clark, 1908) 
Indian Ocean for Hedingia albicans (Théel, 1886) Deichmann, 1938 
Louisiana for Molpadia cubana Deichmann, 1940 
Mediterranean Sea for Hedingia albicans (Théel, 1886) Deichmann, 1938 
Mexico for Molpadia blakei (Théel, 1886) 
Mississippi for Molpadia cubana Deichmann, 1940 
New York for Molpadia parva (Théel, 1886) 
New Zealand for Hedingia albicans (Théel, 1886) Deichmann, 1938 
North Atlantic for Hedingia albicans (Théel, 1886) Deichmann, 1938 
North Atlantic for Molpadia blakei (Théel, 1886) 
North West Atlantic for Caudina arenata (Gould, 1841) 
North West Atlantic for Molpadia barbouri Deichmann, 1940 
North West Atlantic for Molpadia cubana Deichmann, 1940 
North West Atlantic for Molpadia musculus Risso, 1826 
North West Atlantic for Molpadia oolitica (Pourtalès, 1851) 
North West Atlantic for Molpadia parva (Théel, 1886) 
Pacific Ocean for Paracaudina chilensis chilensis (Müller, 1850) 
Panamanian part of the Caribbean Sea for Molpadia cubana Deichmann, 1940 
Panamanian part of the Caribbean Sea for Molpadia parva (Théel, 1886) 
United States part of the North Atlantic Ocean for Cherbonniera utriculus Sibuet, 1974 
United States part of the North Atlantic Ocean for Molpadia parva (Théel, 1886) 

 Distribution

 for Caudina arenata (Gould, 1841)

It seems likely that this species occurs in bathyal depths in the western atlantic. [details]

 Distribution

 for Hedingia albicans (Théel, 1886) Deichmann, 1938

This distinct species apparently has a world-wide distribution at mostly bathyal depths (494-3200m). [details]