Cymbasoma bowmani sp. nov., a new monstrilloid (Copepoda: Monstrilloida) from a Caribbean reef, with notes on species variation

Cymbasoma bowmani sp. nov. is described from three adult females collected in a reef lagoon on the southeast coast of the Yucatan Peninsula, Mexico. The new species is very closely related to C. reticulatum Giesbrecht, but can be distinguished by the lack of cuticular reticulation in the cephalothorax and antennules, the relatively shorter antennules and cephalothorax, and the relatively longer urosome. A certain degree of variation was recognized between the specimens, this kind of variation having been previously detected only on larger geographical scales. Cymbasoma bowmani is the fifth species of this genus recorded in the Northwestern Atlantic.