ON A NEW SPECIES THYNNASCARIA VISAKHENSIS (NEMATODA : ANISAKIDAE) FROM THE INTESTINE OF SAURIDA UNDOSOQUAMIS (RICHARDSON) OF VISAKHAPATNAM

Abstract

The present paper deals with description of a new species of nematode of the family Anisakidae Railliet et Henry, 1912 from the intestine of marine fish Saurida undosquamis (Richardson) of Visakhapatnam. The specimens do not agree with descriptions of known species of the genus Thynnascaris, hence a new species Thynnascaris visakhensis has been erected to accommodate the present specimens. The new species could be distinguished by body measurements, location of nerve ring and excretory pore, length of ventriculus, oesophageal appendix and intestinal caecum, number and arrangement of caudal papillae and size of the spicules