On a new species of Neoechinorhynchus Hamann 1892 (Acanthocephala: Neoechinorhynchoidea Southwell et Macfie 1925) from Indian threadfin fish Leptomelanosoma indicum Shaw 1804 from Visakhapatnam coast Andhra Pradesh India

摘要

A new acanthocephalan of the genus Neoechinorhynchus Hamman, 1892 (Acanthocephala: Neoaechinorhynchoidea Southwell et Macfie, 1925) parasitic on threadfin fish, Leptomelanosoma indicum Shaw, 1804 from Visakhapatnam coast, Andhra Pradesh, India is described. Neoechinorhynchus indicus sp. nov is characterized by an enormous body size, structural characteristics of the hooks on proboscis, presence of body annulations, two guard cells, unequal lemnisci, sub-terminal genital pore and the host. N. indicus sp.nov is included in the genus by the presence of three rows of six hooks each on the proboscis and a single layered proboscis receptacle.