Abstract
Two previously undescribed species of Copepoda are members of the interstitial community of the sandy bed of a stream in northern Virginia. Diacyclops albus n.sp. shares with D. languidus, D. languidoides, and D. nanus the combination of biarticulate rami of leg 1 and endopodite of leg 2, the remaining rami of the swimming legs being triarticulate. Diacyclops albus differs from these congeners in having one rather than two terminal spines on the leg 4 endopodite article 3, as well as in other characters. Parastenocaris palmerae n.sp. differs from North American congeners in having the medial margin of leg 5 strongly convex proximally and concave distally in both sexes; in addition, the male of no other known North American species has leg 4 with a multiply incised endopodite similar to that of the male of P. palmerae.
Publisher
Canadian Science Publishing
Subject
Animal Science and Zoology,Ecology, Evolution, Behavior and Systematics