FIGURE 19 in Taxonomy of freshwater gobies of the genus Rhinogobius (Oxudercidae, Gobiiformes) from central Vietnam, with descriptions of two new species

FIGURE 19. Relationships of head length and upper-jaw length to standard length (SL) in Rhinogobius similis collected from Da Nang City (light green squares) and Thua Thien Hue Province (orange square) in central Vietnam, Quang Ninh Province in northern Vietnam (red circles), Okinawa Island (light blue circles) and Izu Peninsula (deep blue diamonds) in Japan, holotype and paratypes of Ctenogobius lini Herre, 1934 from Wuzhou, China (deep green x), holotype of Gobius giurinus Rutter, 1897 from Shantou, China (pink x), and holotype of Ctenogobius hadropterus Jordan & Snyder, 1901 from Nagasaki, Japan (deep blue x). Solid symbols represent males, open symbols represent females, and those filled with grey represent specimens of unknown sex.