FIGURE 1 in A review of the Heteroclinus heptaeolus complex (Pisces: Blennioidei: Clinidae), with three new species and discussion of use of proportions in taxonomic studies

FIGURE 1. Head of Heteroclinus argyrospilos from Hoese & Pogonoski (2021) showing canals (dashed lines) and pores (open circles) and position of dorsal fins; anterior and posterior nostril at end of short tubes elevated above skin. Letters indicate canal sections: a = nasal, b = supraorbital, c = postorbital, d = infraorbital, e = interorbital, f = preopercular, g = mandibular, h = occipital (median pore not shown), l = lateral line.