Anatomy and histology of the olfactory organ of Korean amur goby Rhinogobius brunneus (Gobiiformes, Gobiidae)

Description

Hyun Tae Kim, writing alone in 2025, describes the anatomy and tissue structure of the smell organ of the Korean amur goby. The fish lives in shallow, stagnant, sometimes oxygen-poor streams, reservoirs, and ponds.

The organ consists of a short tube-like front nostril, a rear nostril, a single lengthwise fold, and two accessory sacs. The single-fold design resembles other gobies with simplified smelling surfaces. Smell tissue contained receptor neurons, supporting cells, and basal cells. Non-smell tissue held layered cells and mucus cells whose protein-rich secretions stained intensely. The author argues the mucus likely shields the tissue from particles, toxins, and low-oxygen water, suiting the stagnant habitat.

Catalog record

Source: https://europepmc.org/articles/PMC12664872