IUCN threat status:

Least Concern (LC)

Comprehensive Description

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  Common names: clingfish (English), chupapiedra (Espanol), chalaco (Espanol)
Arcos erythrops (Jordan & Gilbert, 1882)

Rock-wall clingfish

Tadpole shaped, with flattened body and wide flattened head; front nostril with a broad, bushy flap; a few fleshy lobes under chin, but nowhere else on head; top lip broad, much wider at front than at sides;  upper jaw with 2-4 pairs of lightly compressed incisors at front followed on each side by 2-4 weak canines; lower jaw with 4-5 pairs of incisors followed on each side by 3-4 canines; top jaw with a row of rounded incisors and a deep patch of small irregular teeth behind them; sucker very large, front and rear parts with a broad band of papillae, central part with 2 close-set patches of papillae, 9-14 rows of flattened papillae across front of sucker disc, 11-14 rows across rear of disc, 7-9 longitudinal rows on each central patch; a well developed flattened fleshy pad on pectoral base with a free posterior margin; dorsal rays 6-7; anal rays 6; pectoral rays 21-22; caudal rays 7-8. 

Greenish brown with intricate pattern of white, blue, and brown spots and intervening yellowish reticulum; 2-3 broad dark brown bars across rear portion of body.

Size: attains 5.4 cm.

Inhabits surge zone along rocky shores.

Depth: 0-15 m.

The Central Gulf of California to southern Mexico.   


Creative Commons Attribution Non Commercial 3.0 (CC BY-NC 3.0)

© Shorefishes of the tropical eastern Pacific online information system. www.stri.org/sftep

Source: Shorefishes of the Tropical Eastern Pacific Online Information System

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