Spiny pugolovka (Benthophilus spinosus), first described by Kessler, 1877 is a tiny fish in the family Gobiidae (order Gobiiformes). Adults typically reach 3.40 cm in maximum length. It inhabits brackish estuarine and coastal transition zones between freshwater and the sea. It occurs in Temperate waters. It is broadly omnivorous, taking invertebrates, plant matter, and detritus. On the IUCN Red List, it is classified as Least Concern.The species is kept in the aquarium hobby. Care requirements and behaviour align broadly with other Gobiidae kept in the hobby.
Dorsal spines (total): 2 - 3; Dorsal soft rays (total): 6 - 8; Anal spines: 1; Anal soft rays: 5 - 7. Body reduced, snout roundish, without upper lip. Sides of the body and head pale or yellowish brown with gray speckles .: elongated.
Behavioural data for Spiny pugolovka is currently being reviewed.
Brackish; demersal; depth range ? - 43 m . Temperate central part of the Caspian Sea.
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