Vol. 7, Issue 4 (2018)

Author(s):
P Sridevi, AR Sreeranjini, A Karthikeyan, KM Lucy, KS Saranya and JG Ajith

Abstract:
The study was conducted on the oropharynx of the mute swan (Cygnus olor). The oropharynx involved as prehensile organ along with tongue, studying of the gross morphological characters maybe help full to identify during forensic cases and other pathological conditions in mute swan. In oral cavity, upper bills was spatula like shape with black base on tip and the lower bill having a central median line. Both the upper and the lower bill have lamellae at its lateral side. The roof of swan was flat and having a prominent median longitudinal ridge continued with cranial and caudal papilla within the ridge. Choanal slit was relatively larger with visible oval depression present with numerous papilla thorn like directed caudally posterior.