A new species and new record of the genus Cumella (Cumacea: Nannastacidae) from Korea

作者：Lee Chang Mok; Lee Kyung Sook^*

来源：Zootaxa, 2012, 3390(3390): 19-32.

DOI：10.11646/zootaxa.3390.1.2

• Taxonomy
• Cumacea
• Nannastacidae
• Cumella
• new species
• synonym
• Korea

The new species, Cumella levitergus sp. nov., and the newly recorded species, Cumella arguta Gam (o) over cap, 1962 are described and illustrated. Cumella scabera Gam (o) over cap, 1962 is proposed as a synonym of C. arguta in this study. Cumella levitergus is obviously distinguished from other known species of Cumella by the combination of the following features: 1) the carapace surface is pitted, and has abundant minute alveolate sculpturing, which is round and tightly arranged; 2) the dorsomedian carina is obsolete and not decorated; 3) the flagellum of the male antenna 2 does not extend past the posterior border of the pleonite 4; 4) the carpus of pereopod 1 has 3 setae on the inner margin; 5) the carpus of pereopod 2 is shorter than the length of the dactylus; 6) the uropod exopod is 0.65 times as long as the exopod. A key to the Korean Cumella species is also given.

• 出版日期2012-7-17