Sigyn, An & Boyko & Li, 2015

An, Jianmei, Boyko, Christopher B. & Li, Xinzheng, 2015, A Review Of Bopyrids (Crustacea: Isopoda: Bopyridae) Parasitic On Caridean Shrimps (Crustacea: Decapoda: Caridea) From China, Bulletin of the American Museum of Natural History 2015 (399), pp. 1-85 : 71

Sigyn , n. gen.

DIAGNOSIS: Female: Head highly distorted, embedded in pereon. Seven pereopods on both sides, but crowded together on short side. First two pereopods of long side near head, third on brood pouch located opposite head, other four pereopods of long side crowded together near pleon. Pleon of five segments, first four with lateral plates and uniramous pleopods. Pleon produced into a pedunculated globe, surface covered with small tubercules.

Male: Head fused with first pereomere, eyes present. Pereomeres distinct. Pleon without segmentation or appendages.

ETYMOLOGY: The name Sigyn (“victorious girlfriend” in Old Norse) calls attention to the closely related genus Loki Markham, 1972 ; Sigyn is the wife of Loki in Norse mythology; gender feminine.