Palaina taeniolata hyalina Quadras and llendorff, 1894
(Dextral Specimen On The Left)

Sinistral Palaina taeniolata hyalina Quadras and Möllendorff, 1894

    The shell of this tiny species weighs only 0.000847 grams (33,400 to the ounce). A large sample was collected before 1930 for Walter Freeman Webb and is comprised of 240 dextral and 4,617 sinistral specimens. That's just under 5% dextrals in a predominantly sinistral species. See: Sinistral Schistoloma alta sibuyanica Bartsch, 1915