Dart sac

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Related to Dart sac: ovotestis
(Zool.) a sac connected with the reproductive organs of land snails, which contains a dart, or arrowlike structure.

See also: Dart

References in periodicals archive ?
Mantle heavily mottled, the complex pattern obscuring a dorsal double row of black dashes or spots and one dorsal brown band suggesting the merging of two adjacent bands, as well as one lateral brownish band on each side also obscured by darker mottling; sole of foot not tripartite, foot fringe gray-brown to brown; fresh mucus clear or white or tinted with orange; penis at least slightly sinuate in outline, penial pouch absent; penis retractor notably thickened at junction with penis and vas deferens; vas deferens often markedly wider in diameter than penis at and near their junction; dart sac large.
retractor junction of width penis and vas deferens Dart sac large + - + + - + - size Character VI Paired - black spots on dorsum Foot ?
The related slug genus Megapallifera Hubricht is outwardly similar to Philomycus but lacks the calcareous dart, which can be easily extracted by dissection from the dart sac of all Philomycus species.