Acartia (Acanthacartia) cagayanensis sp. nov.

(Figs. 1–3)

Material examined. Female holotype (NSMT-Cr 28389) and male allotype (NSMT-Cr 28390) collected from the mouth of the Cagayan River on February 2, 2009 . Paratypes: 2 females and 2 males were collected from the mouth of the Cagayan River on February 2, 2009 (NSMT-Cr 28391– 28394) and 10 female specimens were collected from the river on February 16, 2010 (NSMT-Cr 28395). Furthermore, 46 females and 2 males were collected from the mouth of the Pata River on February 15, 2010 .