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The present study reports the first record of Sillago indica from the Iranian coast of the Oman Sea. Sixteen specimens were collected with beach seine during sampling in Chabahar Bay. The obtained detailed information on the morphometric and meristic characters is compared with previous records of S. indica. Morphological characters matched the previous description of this species. Molecular confirmation of the species identification was carried out using the partial mitochondrial cytochrome oxidase subunit I gene (COI). Genetic results revealed a 0.181-0.231 K2P distance with other sillaginid species. The identified haplotypes were identical with conspecific haplotypes in GenBank. [ABSTRACT FROM AUTHOR]

Harry hotlips (Plectorhinchus gibbosus), belonging to the fish family Haeumulidae, is recorded for the first time off the Iranian coast of the Oman Sea, Chabahar Bay (25°18′N, 60°37′E). Identification confirmed by comparing morphological data of the collected specimen with data of reported congener species off this area.

The long-fin goatfish Upeneus supravittatus is recorded from the Iranian coast of the Oman Sea based on morphological and molecular (COI gene) identification. The species was recorded in the area based on two specimens collected from the Chabahar Bay (25° 18' N, 60° 37' E), Northern Oman Sea. [ABSTRACT FROM AUTHOR]

White sardine Escualosa thoracata (Valenciennes, 1847) was recorded for the first time from the Iranian coast of the Oman Sea. The identification was confirmed based on external morphometric and meristic characters, which were concordant with previously reported data. Genetic distances (based on 655 bp of COI Sequence) between identified and previously reported sequence were 0.8 % (p-distance). This record is a new addition to the ichthyofauna of the Oman Sea based on five specimens collected from Chabahar Bay. [ABSTRACT FROM AUTHOR]

Fourteen morphotypes of the Aden nerite (Nerita adenensis) from Chabahar Bay, the northern Gulf of Oman, were sequenced for mitochondrial cytochrome c oxidase I and nuclear ATPSα genes. COI sequences across all morphotypes yielded uncorrected intraspecific genetic distances (p) of between 0.013 and 0.017, whereas interspecific p was 0.11–0.16 among congeneric species. For ATPSα, across all morphotypes, p was 0.00–0.03, whereas between N. adenensis and congeneric species, p was 0.07–0.19. Morphological analysis revealed a high degree of plasticity in shell colour, pattern and structure, while characters of the operculum and crenulations on the outer lip were more stable. Our descriptions provided here will be helpful in identifying this problematic taxon, which our genetic analyses show is best regarded as a single variable biological species. [ABSTRACT FROM AUTHOR]