Ashish Kumar*
Department of Zoology, Magadh University, Bodh-Gaya, Bihar, India
Received : 30th April, 2023 ; Revised : 30th May, 2023
DOI:-https://doi.org/10.5281/zenodo.13752197
Abstract– Morphological studies of the olfactory organ in freshwater fishes’ focus on understanding the structure and organization of this sensory system. These studies provide insights into how fishes detect and process olfactory stimuli in their environment. The current study of the olfactory organ of Labeo gonius (Ham.) from different waterbodies of Gaya used a biostatistical approach to determine the relationship between the fishes’ lamellae and length. Additionally, a graph has been plotted for the current study. The ethmoid bone fossa of the skull, trapping the smell organs. The principal housing component is the lateral ethmoid. They are protected posterodorsally by the frontal bone, anterodorsally by the nasal bone, and ventrolaterally by the lachrymal bone. The olfactory rosette is attached to an auxiliary sac. The olfactory rosette is oval in shape and has multiple closely spaced lamellae. A single lamella is crescentic in shape and has a linguiform process. The radial lamellae, which vary in number from approximately 19 to 55, are arranged in transverse rows on both sides of the raphe. As the fish becomes longer, the number increases accordingly.
Key words: Olfactory organ, Labeo gonius, auxiliary sac, lamellae
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