Two New Species of Stygobiotic Amphipod Niphargus (Amphipoda: Niphargidae) and their Phylogenetic Relationship with Other Congeners from Iran.

IF 1.5 3区生物学 Q2 ZOOLOGY

Zoological Studies Pub Date : 2024-09-04 eCollection Date: 2024-01-01 DOI:10.6620/ZS.2024.63-23

Mahmoud Mamaghani-Shishvan, Vahid Akmali, Cene Fišer, Somayeh EsmaeiliRineh

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Abstract

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.

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来源期刊

Zoological Studies 生物-动物学

CiteScore

2.80

自引率

6.20%

发文量

审稿时长

6-12 weeks

期刊介绍： Zoological Studies publishes original research papers in five major fields: Animal Behavior, Comparative Physiology, Evolution, Ecology, and Systematics and Biogeography. Manuscripts are welcome from around the world and must be written in English. When the manuscript concerns the use of animals or specimens in research, a statement must be included to the effect that the author(s) has adhered to the legal requirements of the country in which the work was carried out or to any institutional guidelines.