Shorefishes of the Eastern Pacific online information system

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Genus: Arcos, Clingfishes

All Families:   All Genera:   All Species:

wide head
sucker papillae: front, sides, center, (2 close-spaced patches) & rear
pectoral base: large pad with free edge



Tadpole shaped, with flattened body and wide flattened head; a few fleshy lobes under chin, but nowhere else on head; top lip broad, much wider at front than at sides; top jaw with a row of rounded incisors and a deep patch of small irregular teeth behind them; 1 dorsal fin, at rear, no spines; anal fin like dorsal fin and under it; sucker very large, front and rear parts with a broad band of papillae, central part with 2 close-set patches of papilla; a conspicuous fleshy pad at base of pectoral fin; no scales; lateral line present as pores on head only.

A TEP genus with 4 species endemic to our region.