A new diosaccid harpacticoid, Robertsonia glomerata new species, found in a Spartina alterniflora marsh in a North Carolina National Estuarine Research Reserve, is described. Key characters are the highly modified outer furcal spines in the female and the short first endopodal segment of the first leg. The setal armament of the exopodites of the natatorial legs of the new species unifies it with the species group including R. propinqua, R. barnesi, R. knoxi and R. salsa. Based on a review of the entire literature, an updated listing of the P2-P4 armature is given and a new key to the species of the genus is compiled. |
