Ptychobela vexillium

{{Short description|Species of gastropod}}

{{Italic title}}

{{Use dmy dates|date=April 2020}}

{{Speciesbox

| taxon = Ptychobela vexillium

| image = Ptychobela vexillium 01.jpg

| image_caption = A shell of Ptychobela vexillium

| authority = (Habe & Kosuge, 1966)

| synonyms_ref =

| synonyms = * Brachytoma vexillum Habe & Kosuge, 1966

• Inquisitor vexillium (Habe & Kosuge, 1966)

| display_parents=3

}}

Ptychobela vexillum is a species of sea snail, a marine gastropod mollusk in the family Pseudomelatomidae, the turrids and allies.MolluscaBase (2018). Ptychobela vexillium (Habe & Kosuge, 1966). Accessed through: World Register of Marine Species at: http://marinespecies.org/aphia.php?p=taxdetails&id=1056672 on 2018-09-20

R.N. Kilburn proposed in 1989 Brachytoma vexillum Habe & Kosuge, 1966 as a synonym of Ptychobela suturalis (Gray, 1838)[http://journals.co.za/docserver/fulltext/annals/30/1/363.pdf?expires=1525188624&id=id&accname=guest&checksum=8309010F241C0A8530CF0627F2F3E4C6 Kilburn, R. N. "Notes on Ptychobela and Brachytoma, with the description of a new species from Mozambique (Mollusca: Gastropoda: Turridae)." Annals of the Natal Museum 30.1 (1989): 185–196]

The epithet vexillium was probably a misspelling in the original text, but was not indicated as such. Therefore, it takes priority over vexillum, published five-month later and repeated later by some authors.