Palaemonidae
The Partnergarnele Periclimenes yucatanicus
The rocks and partner shrimp ( Palaemonidae ) are about one hundred genera described the shape richest family of crustacean partial order of the Caridea, which includes most of the shrimp. The family is distributed worldwide. Most species occur in the sea from shallow waters to depths of about 1300 meters in front, some species have also successfully colonized freshwater habitats. Some species, particularly within the partner shrimp, live in symbiotic relationship with other invertebrates.
Features
Palaemonidae have a large, laterally squeezed and Real rostrum to a maximum of 12 teeth. Your carapace has no continuous longitudinal seam. The telson has the posterior margin on two or three pairs of spines. The first pair of antennae has two completely separate flagella. The third to last member of the second thoracic leg has no limbs
System
Within the family, two subfamilies and three no subfamily assigned genera are recognized:
- Calathaemon holthuisi Bruce and Short, 1993
- Climeniperaeus truncoideus A. J. Bruce, 1996
- Cryphiops caementarius Dana, 1852
- Rock shrimp ( Palaemoninae )
- Partner Shrimp ( Pontoniinae )