Reproductive Data for Vexillum tusum

egg diameter	-
reproductive season	August (peak abundance); Occurs sporadically throughout the year
development	metamorphosis occurs when 3 3/4 to 4 whorls are complete; length: 960 um; width: 550 um
occurrence	plankton in Kaneohe Bay Sampan Channel and Dredged Island
references	J.B. Taylor in Planktonic Prosobranch Veligers of Kaneohe Bay, 1975

Phylogenetic Information

phylum	Mollusca
class	Gastropoda (subclass Prosobranchia)
order	Neogastropoda
family	Costellariidae
genus	Vexillum
species	tusum
reproduction method	sexual