Randall's Pistol Shrimp

Alpheus randalli is a medium-sized snapping shrimp growing to about 3 centimetres (1.2 in) long. The rostrum of Alpheus randalli is half as long again as it is broad and the carapace is not laterally compressed. The chelipeds are asymmetric, one carrying a massive snapping claw. The background colour of this shrimp is white or transparent with red bands and spots on the rostrum and both large and small chelipeds. There are further bands of white and red on the abdomen and the tips of the uropods are red. The tips of the thoracic appendages are yellowish-green.

Alpheus randalli was first described in 1981 from the Marquesas Islands in the Indian Ocean where it was found living at a depth of 18 metres (59 ft) in association with a previously undescribed species of goby in the genus Amblyeleotris. This has now been given the name Randall's prawn goby (Amblyeleotris randalli).