Vol. 63, 2024
(update: 2024.9.4)
Two New Species of Stygobiotic
Amphipod Niphargus
(Amphipoda: Niphargidae) and their Phylogenetic Relationship with Other
Congeners from Iran
Mahmoud
Mamaghani-Shishvan1, Vahid Akmali4,*, Cene Fišer3, and Somayeh Esmaeili-Rineh4,*
doi:10.6620/ZS.2024.63-23
1Department
of Biology, Faculty of Science, Razi University, Bagabrisham
6714967346, Kermanshah, Iran. E-mail: m.mamaghani.sh@gmail.com
(Mamaghani-Shishvan)
2Department of Biology, Faculty of Science, Razi
University, Bagabrisham 6714967346, Kermanshah, Iran. *Correspondences:
E-mail: v_akmali@razi.ac.ir (Akmali)
3Department of Biology, Biotechnical Faculty,
University of Ljubljana, Večna pot 111, SI-1000, Ljubljana, Slovenia.
E-mail: cene.fiser@bf.uni-lj.si (Fišer)
4Department of Biology, Faculty of Science, Razi
University, Bagabrisham 6714967346, Kermanshah, Iran. *Correspondences:
E-mail: sesmaeili@razi.ac.ir (Esmaeili-Rineh)
(Received 1 July 2023 /
Accepted 10 April 2024 / Published 4 September 2024)
Communicated by Benny K.K. Chan
Two
new amphipod species from Iran, Niphargus
sahandensis sp. nov. and Niphargus
chaldoranensis sp. nov., are described based on their
morphological characteristics and molecular analyses. Bayesian
inference analyses of COI and
28s rDNA sequence data provided evidence for the validity of the two
species and their placement in the Niphargus
genus. N. sahandensis sp.
nov. primarily differs from similar species by having more than two
hook-like retinacles on the inner surface of pleopods I–III, the
presence of two spines at the base of uropod I and rectangular-shaped
propodi in both gnathopods. N.
chaldoranensis sp. nov. is distinguished by the
trapezoidal-shaped propodi in gnathopods I to II, the equal sizes of
pereopods V and VI, and the proportional size of periopod VII in
relation to the total body (60%). Morphological descriptions with
illustrations of the new species, as well as a DNA-based phylogeny
generated from analyses of a multigene dataset, are provided to better
understand species relationships.
Key words: Niphargus sahandensis sp. nov., Niphargus chaldoranensis sp. nov.,
Morphological characters, COI
and 28s rDNA, Iran
Citation: Mamaghani-Shishvan M, Akmali V,
Fišer C, Esmaeili-Rineh S. 2024. Two new species of stygobiotic
amphipod Niphargus
(Amphipoda: Niphargidae) and their phylogenetic relationship with other
congeners from Iran. Zool Stud 63:23.
doi:10.6620/ZS.2024.63-23.
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