Cossmannica jacksonensis is a species of sea snail, a marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies. This species is one of many other species known to exist within the genus, Cossmannica.[1]
The length of the shell measures approximately 6.1 mm. The teleoconch contains eight whorls.[2]
This marine species occurs off the coasts of Queensland, Australia, within the Great Barrier Reef and other various marine areas nearby.