Cheilodactylidae Regan,

Ludt, William B., Burridge, Christopher P. & Chakrabarty, Prosanta, 2019, A taxonomic revision of Cheilodactylidae and Latridae (Centrarchiformes: Cirrhitoidei) using morphological and genomic characters, Zootaxa 4585 (1), pp. 121-141: 126

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Cheilodactylidae Regan


Family Cheilodactylidae Regan 

Diagnosis. Diagnosis follows that of Kimura et al. (2018) and Smith (1980) for Cheilodactylus  . The family can be diagnosed by the following combination of characters: body compressed and ovoid, with small, terminal to subterminal mouth with large lips; eyes moderate size; two pairs of nostrils with cirri on the lower pair of nostrils; no bony processes on frontal bone or maxilla; teeth small, villiform in several rows, absent from vomer and palatines. Dorsal-fin elements XVII–XX, 19–25; anal-fin elements III, 9–11; pectoral-fin rays 14 with ventral 4–5 thickened and unbranched. Dorsal-fin continuous with no division between spinous and soft portions; spines increasing in length to sixth spine, and decreasing thereafter; second dorsal ray longest. Gas bladder absent; three supraneurals, with first supraneural preceding first neural spine and second and third supraneural between first and second neural spines in the arrangement of 0/0+0/2+1/1/1 ( Fig. 2View FIGURE 2). Lateral-line scales 78–85; scales small and cycloid; scaly sheath present at base of dorsal and anal-fins. Cheilodactylidae  can be further differentiated from Cirrhitidae  by dorsal spines lacking cirri (versus present), and from both Chironemidae  and Aplodactylidae  by higher anal-fin ray counts and a more laterally compressed, deeper body. Cheilodactylidae  can be further differentiated from Latridae  by the absence of a gas bladder, by late-stage larvae lacking a ‘paperfish’ stage ( Dudnik 1977), and by the arrangement of supraneurals with the first neural spine (see family diagnosis for Latridae  below).