Calyptraeotheres Campos, 1990

Ayón-Parente, Manuel & Hendrickx, Michel E., 2014, Calyptraeotheres sp. nov. (Crustacea: Decapoda: Pinnotheridae), symbiont of the slipper shell Crepidula striolata Menke, 1851 (Mollusca: Gastropoda: Calyptraeidae) from the Gulf of California, Mexico, Zootaxa 3872 (1), pp. 89-94 : 94

Key to female of species of American Calyptraeotheres Campos, 1990

[after Campos (1990, 1999), Hernández-Ávila & Campos (2006), Campos & Hernández-Ávila (2010)]

1. Endopod of maxilliped 3 palp 2-segmented; no minute dactylus inserted subdistally on the ventral margin of propodus..... 2

- Endopod of maxilliped 3 palp 3-segmented; minute dactylus inserted subdistally on the ventral margin of propodus........ 5

2. Carapace with front arcuate, with short, middle, shallow depression; lateral margin subparallel; eyes not visible in dorsal view............................................................................................. C. granti

- Carapace with lateral margin arcuate; eyes visible in dorsal view................................................ 3

3. Carapace suborbicular with two cervical depressions converging posteriorly but not connecting.............. C. pepeluisi

- Cervical depressions converging and connecting posteriorly.................................................. 4

4. Carapace with front subrectangular; cervical depressions converging and connected posteriorly by T-shaped transversal depression. Posterior margin concave.......................................................... C. hernandezi

- Carapace with front arcuate, cervical depressions converging, connected posteriorly by a transversal depression. Posterior mar- gin straigth.......................................................................... C. camposi sp. nov.

5. Carapace with two cervical depressions converging, connected by a shallow, transverse V-shaped depression. Posterior margin M-shaped in the middle......................................................................... C. politus

- Cervical depressions parallel, not reaching to the transversal depression. Posterior margin rounded.............. C. garthi