from Jim Conrad's Naturalist Newsletter: selected MEXICAN
MOLLUSKS
SHORTCUTS:
GASTROPODS | BIVALVES | OTHER
Gastropods (one shell, opening on bottom) 
- Apple Murex (Phyllonotus pomum)
- Bean Slug (Sarasinuyla plebeia)
- Bubble, Common Atlantic (Bulla striata)
- Cerith, Flyspeck (Cerithium uscarum)
- Conch, Crown (Melongena bispinosa)
- Conch, Hawkwing (Strombus raninus)
- Conch, Horse (Triplofusus giganteus)
- Conch, Queen (Strombus gigus)
- Garden Snail (Helix aspersa)
- Marginella, Common Atlantic (Prunum apicinum)
- Mexican Apple (Pomacea flagellata)
- Nerite, Bleeding-tooth (Nerita peloronta)
- Nerite, Four-tooth (Nerita versicolor)
- Neritina, Virgin (Neritina virginea)
- Orthalicus princeps
- Reticulate Cowry-helmet (Cypraecassis testiculus)
- Starsnail (cf. Astralium phoebium)
- True Tulip (Fasciolaria tulipa)
- Whelk, Lightning (Busycon perversum)
- Worm Snail (cf. Eualetes tulipa)
Bivalves (two shells hinged together) 
Other: 