Figures 23–28 in Morphological And Molecular Description Of Rhadinorhynchus Hiansi Soota And Bhattacharya, 1981 (Acanthocephala: Rhadinorhynchidae) From Marine Fish Off The Pacific Coast Of Vietnam

Figures 23–28. SEM of specimens from Sarda orientalis collected off the southern Pacific coast of Vietnam at Nha Trang. (23) Rounded posterior end of a female specimen showing the sub-ventral position of gonopore appearing as a lateral slit. (24) Eggs with rounded poles and prominent coarse surface. (25) The posterior end of a male specimen showing the terminal position of an invaginated bursa. (26) A lateral view of terminal bursa. (27) A face view of the thick bursa showing the distribution of sensory structures in an outer ring of clusters and inner rings of single units. (28) Higher magnification of a sensory cluster from the outer ring showing its organization and the elevated dome-shaped center of each unit. The organization of sensory structures of the bursa is species specific and is a useful diagnostic tool for species recognition.