Reproductive system of gastropods
![Entwined everted penises of a pair of mating hermaphrodite slugs in the species Limax maximus.](/Images/godic/202501/11/Mating_Great_Grey_Slug_41242329.jpg")
![A stack of the protandrous species Crepidula fornicata: the small individual at the extreme lower left is currently a male, the other individuals are large enough to have become female](/Images/godic/202501/11/Crépidules_groupe2329.jpg")
![Two hermaphrodite opisthobranchs mating, the nudibranch species Nembrotha rutilans](/Images/godic/202501/11/Nembrotha_rutilans_Nick_Hobgood2329.jpg")
![Simplified diagram of the reproductive morphology of a pulmonate land snail with one love dart and a diverticulum.
AG = albumen gland
BC = bursa copulatrix
BT = bursa tract
BTD = bursa tract diverticulum
D = love dart
EP = epiphallus
FL = flagellum
FP = fertilization pouch
G = genital pore
HD = hermaphroditic duct
MG = mucus glands (nidamental gland)
OT = ovotestis
P = penis
PRM = penis retractor muscle
S = stylophore or dart sac (bursa telae)
SO = spermoviduct
SP = spermathecae
SRO = spermatophore-receiving organ (indicated in grey)
V = vagina
VD = vas deferens](/Images/godic/202501/11/Love_dart_drawing2329.png")
The reproductive system of gastropods (slugs and snails) varies greatly from one group to another within this very large and diverse taxonomic class of animals. Their reproductive strategies also vary greatly, see Mating of gastropods.
In many marine gastropods there are separate sexes (male and female); most terrestrial gastropods however are hermaphrodites.