First report of <em>Tristomella laevis</em> (Verrill, 1875) Guiart, 1938 parasitic on <em>Istiophorus platypterus</em> (Shaw and Nodder, 1792) from Andaman Sea

1616-1619Tristomella laevis was recorded from the pectoral fins of Indo–Pacific sailfish, Istiophorus platypterus caught by the tuna longliner MFV Blue Marlin from Andaman Sea. The infested fish was of length 213 cm (Lower Jaw fork Length (LJFL) and weighed 45kg. All Six numbers of parasites were collected from the pectoral fins and they were in the length range of 9.1–12.5 mm. No gill damage was observed