Zamanpoore M., Poeckl M., Grabowski M., Schiemer F. 2009. Two new sympatric species of freshwater Gammarus (Crustacea: Amphipoda) from Southern Zagros Region, Iran. Zootaxa 2136:21-39.

168319

Zamanpoore, M.; Poeckl, M.; Grabowski, M.; Schiemer, F.

2009

2136: 21-39

Publication

Available for editors   [request]

Gammarus zagrosensis n. sp. and Gammarus sepidannus n. sp., both from Gammarus pulex–group, are described from Sepidan County, Fars Province. They inhabit mountainous springs and were found co-occuring in some localities. Many clear morphological differences were recognized, including the setation of the second antenna and pereopods, length of antennal gland cone, postero-inferior protruding lobe and postero-distal corner setation in the basis of P6–7, endopodite/exopodite ratios of uropod 3, dorsal elevation of urosomites, and setation of lower distal margin of epimeral plates 2 and 3. Gammarus zagrosensis is distinguished from G. pseudosyriacus by having setae on the distal segments of pereopod 5–7, a less pointed epimeral plate 2, posterior-inferior corner setae, and the longer setae on uropod 3. The closest species to G. sepidannus are G. balutchi and G. lobifer, the most evident differences of which are the eye size, setosity of first antennal peduncles and flagellum of second antenna, length of gland cone, and uropod rami length ratios. Comparison of the head cuticular micro-structures gives more arguments for separating the two new species from each other, as well as from the previously studied, related species.

Systematics, Taxonomy

Gammaridea

RIS (EndNote, Reference Manager, ProCite, RefWorks)
BibTex (BibDesk, LaTeX)

[Back to search]