Microcyclops finitimus Dussart, 1984

Gutierrez-Aguirre, Martha Angelica & Cervantes-Martinez, Adrian, 2016, Taxonomic evaluation of eleven species of Microcyclops Claus, 1893 (Copepoda, Cyclopoida) and description of Microcyclopsinarmatus sp. n. from America, ZooKeys 603, pp. 33-69 : 43

Taxon classification Animalia Cyclopoida Cyclopidae

Microcyclops finitimus Dussart, 1984 Figure 14

Description of female.

The following description is complementary to the original description of Dussart (1984). Antennule 12-segmented. Dorsal margin of prosomal somites 1 to 3 smooth (unfigured); hyaline fringe of fifth pediger serrated dorsally (Fig. 14A). Intercoxal sclerite of P1 smooth, inner margin of P1 basis with long hair-like setules, without spine on inner margin (Fig. 14B). Enp2P1 with one pore on lateral margin. Row of long spinules present at base of apical spine and lateral seta of Enp2P1 (Fig. 14C). Inner margin of P4 basis with long setules, intercoxal sclerite quadrangular, with one row of long spinules on caudal surface (Fig. 14D). Enp2P4 2.2 times as long as wide; medial spine 1.4 times as long as lateral spine, and 0.8 times as long as segment.

Anal somite with continuous row of spinules along distal margin (ventrally and dorsally), but on ventral surface medial spinules are longer and stronger than lateral spinules (Fig. 14E). No spinules at base of caudal seta II, but spinules present at base of caudal seta III; length to width ratio of caudal ramus 2.7. Relative lengths of terminal caudal setae from outermost to innermost seta, 1.0: 6.1: 8.9: 2.1. Caudal setae IV, and V with homonomous setulation, bearing long and fine setules (Fig. 14E). Dorsal caudal seta (VII) 0.7 times as long as caudal rami, and innermost caudal seta (VI) 1.2 times longer than caudal rami. Lateral caudal seta (II) inserted at 75.5% of caudal ramus length.