Hyperdiverse animal groups raise intriguing questions regarding the factors that generate and maintain their diversity. The snapping shrimp genus Alpheus (with >300 described species) is a spectacularly diversified group of decapod crustaceans that

The burrowing behaviour and burrows of the snapping shrimp Alpheus glaber are described from laboratory observations of animals collected by trawl at 72 m depth off Ancona, Central Adriatic. Resin casts of burrows were taken in laboratory aquaria.

Hyperdiverse animal groups raise intriguing questions regarding the factors that generate and maintain their diversity. The snapping shrimp genus Alpheus (with >300 described species) is a spectacularly diversified group of decapod crustaceans that