Histological study of maxillary barbels in Silurus triostegus and Heteropneustes fossilis (SILURIFORMES) fishes collected from Basra City waters


  • Azal N. Al-Nusear Department of Anatomy and Histology, College of Veterinary Medicine, University of Basrah
  • Raghad I. Abed 2Department of Clinical Laboratory Sciences, College of Pharmacy, University of Basrah, Basrah, Iraq
  • Saad M. S. Abdulsamad Department of Biology, College of Education for Pure Sciences, University of Basrah, Basrah, Iraq.




In this study the maxillary barbels were investigated in Silurus triostegus (Heckel, 1843) and Heteropneustes fossilis (Bloch, 1794) which collected from Basra (Shatt Al Arab) waters. After histological preparations, the histological results revealed that in the two species, the barbels showed epithelium, dermis, muscle layers, tastes buds, blood vessels, nerve fibers and cartilage. The thickness of epithelium differs between the two species also the shape of taste buds. The cartilage occupies the core of the barbel and consider to be primitive cartilage with chondrocytes and matrix. Two types of muscles were distinguished in the studied species smooth and skeletal muscles.