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Fishes of family Muraenidae, popularly known as moray eels, are one of the most diverse groups among true eels. Gymnothorax is the most predominant genus in terms of diversity along Indian coastline (31 species including recent description and distributional records), but they rarely form the fishery of commercial importance. Gymnothorax dorsalis, species of elongated unpatterned moray eels characterized by eight to nine pre-dorsal vertebrae, three infraorbital pores and low dorsal and anal fin united with caudal fins is reported for the first time from the west coast of India. Gymnothorax reticularis, reticulated patterned eel with 18–19 vertical dark bars, five pre-dorsal vertebrae and 10–11 vomerine teeth is also reported for the first time from the northwest coast of India.

Fishes of family Monacanthidae, popularly known as filefishes are a specialized group of fishes with low commercial importance in the studied region barring Aluterus monoceros, which has emerged as commercial fish in the region in last few years. Three species, namely Aluterus scriptus, Stephanolepis diaspros, and Stephanolepis auratus, have been reported for the first time from the region, adding to the monacanthid diversity of the region. Morphometric assessment of the four species revealed several discriminating attributes capable of separating the species from each other.

Fishes of family Apogonidae popularly known as cardinalfishes are of high ecological importance owing to its trophic role. Though the presence of apogonids from the coastal waters of the northeastern Arabian sea are reflected in diets of predatory fishes of the region and bycatch of trawls, limited reports are available on species composition. Three species namely Apogonichthyoides pseudotaeniatus (Gon, 1986), Jaydia queketti (Gilchrist, 1903) and Jaydia lineata (Temmink & Schlegal, 1842) have been reported for the first time from the region, adding to the apogonids diversity of the region. Ostorhinchus fasciatus (White, 1790) is also reported for the first time from the coastal waters of Gujarat. Morphometric assessment of the four species revealed several discriminating attributes capable of separating the species from each other.