15 slides

1 - Chiton sp., t.s. of midbody
2 - Anodonta, mussel, t.s. of midbody
3 - Mya arenaria, clam, t.s. and l.s. of gills showing well developed ciliated epithelium
4 - Mussel, t.s. of siphonal tube
5 - Mya arenaria, clam, adductor muscle of shell, l.s.
6 - Pecten, t.s. of mantle margin showing primitive eye
7 - Anodonta, glochidia (larvae) w.m.
8 - Snail, typical t.s. of small specimen for general study
9 - Helix, snail, t.s. of lung cavity
10 - Helix, snail, t.s. of digestive gland (liver)
11 - Helix, snail, t.s. of kidney
12 - Helix, snail, t.s. of hermaphrodite gland
13 - Helix, snail, l.s. of tentacle showing lens eye
14 - Alloteuthis, young cuttlefish, l.s.
15 - Octopus, cuttlefish, section through sucking tube