The genus Stelidiella was described as containing four species (S. fenestrata, Stelidiella phialia, Stelidiella simplex and Stelidiella stelidium). To date, the first three species ( S. fenestrata , S. phialia and S. simplex ) have been found only by Kofoid and Campbell in the Pacific Ocean ( Kofoid and Campbell, 1939 ) and S. stelidium has been found in the Atlantic Ocean only by Biedermann ...