| Abstract |
Paracerceis spinulosa sp. nov., is described from material collected along the Pacific coast of Mexico. This species was previously reported in literature as Paracerceis sp. and differs from the other two species of Paracerceis from the eastern Pacific (i.e., P. sculpta (Holmes, 1904) and P. richardsonae Lombardo, 1988) by the presence of a large, subconical median tubercle on the telson, a much higher uropodal exopod partly covered with spiny and rounded tubercles, and a distinct spinulation pattern on all pereiopods. Newly-collected material of P. sculpta and P. richardsonae provides new environmental and distributional data. Keys to the males and females of the species of Paracerceis of the eastern Pacific are provided. |
