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February 14, 2026AnimalsOpen Access

Alimentary Tract Anatomy and Morphology in Early Adult Mediterranean Killifish Aphanius fasciatus (Valenciennes, 1821)

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Authors

MGMaria Cristina GuerreraUniversity of MessinaLPLidia PanseraUniversity of MessinaMAMarialuisa AragonaUniversity of Messina

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Implication

Anatomical study details the digestive tract's structure in Mediterranean killifish, highlighting its unique adaptations.

Key Points

  • This research aims to describe the anatomy and morphology of the digestive tract in Aphanius fasciatus.
  • Used anatomical examinations and light microscopy
  • Focused on oral, pharyngeal, and intestinal structures
  • Analyzed adult specimens of the Mediterranean killifish
  • Identified tricuspids incisiform teeth in the jaws and caniniform teeth in the pharynx
  • Described the tongue as a muscular thickening aiding swallowing
  • Found a dilated anterior intestinal region functioning mainly for storage and absorption
  • Noted sexual dimorphism in the anal structure between male and female fish

Cite This Study

Guerrera et al. (2026) studied this question.

synapsesocial.com/papers/699011a12ccff479cfe5889dhttps://doi.org/10.3390/ani16040585
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Also Consider

Synapse has enriched 3 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Diet and habitat as determinants of intestine length in fishes2024 · 44 citations
  2. 2Evidence for Selection on Mitochondrial OXPHOS Genes in the Mediterranean Killifish Aphanius fasciatus Valenciennes, 18212024 · 10 citations
  3. 3Nothobranchius furzeri, an 'instant' fish from an ephemeral habitat2019 · 73 citations