Alpheus malleator, the hammerclaw snapping shrimp or bumpy-clawed snapping shrimp, is a species of marine snapping shrimp.

[1][2][3] It is considered the most distinctive species in the genus Alpheus due to intricate morphological features.

[3] Alpheus malleator is found along the western Central American coast, including Ecuador and the Galapagos Islands, and in the east and the west of the Atlantic Ocean.

[1] The type locality is believed to be in Rio de Janeiro.

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