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)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.
Description The length of the shell attains 46.5 mm, its diameter 14.5 mm.
Distribution This marine species occurs in the South China Sea, off the Philippines and Japan; also off Australia (Northern Territory, Queensland, Western Australia).
References
Habe, T. & S. Kosuge, 1966a, Shells of the world in colour, Vol. I. The tropical Pacific. vii, (2 pp. map], 193 pp., pis. 1–68, supplemental pis. 1–2; Hoikusha, Osaka
External links
Baoquan Li 李宝泉 & R.N. Kilburn, Report on Crassispirinae Morrison, 1966 (Mollusca: Neogastropoda: Turridae) from the China Seas; Journal of Natural History 44(11):699–740 · March 2010; DOI: 10.1080/00222930903470086 Gastropods.com: Brachytoma vexillum