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Taxon profile

species

Dermatolepis striolata (Playfair, 1867)

kingdom Animalia - animals »  phylum Chordata - chordates »  class Actinopterygii - ray-finned fishes »  order Perciformes - perch-likes »  family Serranidae - sea basses and groupers »  genus Dermatolepis

Scientific synonyms

Dermatolepis aldabrensis Smith, 1955
Dermatolepis striolatus (Playfair, 1867)
Serranus gibbosus Boulenger, 1888
Serranus striolatus Playfair, 1867

Description

Body depth greater than head length, depth contained 2.4 to 2.6 times in standard length (for fish 27 to 40 cm standard length). Eye diameter much less than snout length, contained 7.2 to 8.1 times in head length; preopercle serrate, but the serrae are covered by skin; opercular spines not apparent. Gill rakers 5 to 7 on upper limb and 13 to 16 on lower limb, total 18 to 22. Dorsal fin with XI spines and 18 or 19 rays, the fin origin over the opercle and the membranes not incised between the spines; anal fin with III spines and 9 or 10 rays; pectoral fins with 17 to 19 rays, pectoral-fin length 23 to 27% of standard length; caudal fin rounded or truncate with rounded corners. Scales smooth and mostly covered by skin; lateral-line scales 69 to 71; lateral-scale series difficult to count, 118 to 124.
Colour: Yellowish to reddish brown, paler ventrally; adults with small, round, dark spots all over head, body and fins; juveniles with numerous small dark brown spots on head, body (where they are often horizontally elongate, even forming short lines) and fins (where they are less distinct); median fins also with pale spots; head and body also with more or less distinct, irregular, pale blotches of various sizes.

Distribution

Western Indian Ocean: Gulf of Oman and south coast of Arabian Peninsula, Aldabra, Comoros, Madagascar, and coast of Africa from Kenya to South Africa (Durban).

Ecology

It is a rare species seen on shallow coral reefs to depths of 15 m. Morgans (1982) reports shoaling behaviour in small groups (8 or fewer individuals). The stomach contents of 5 specimens were examined by Morgans; 3 were empty and 2 contained fish remains.

Size

Attains at least 85 cm total length and 10.5 kg.

Interchangeable taxa

D. striolata differs from D. inermis in its shorter pectoral fins (29 to 35% of standard length for D. inermis) and its colour pattern. D. dermatolepis differs in having fewer lateral-line scales (62 to 67) and in colour pattern.

Sources

Food and Agriculture Organization of the United Nations, 1993, Heemstra, P.C.; Randall, J.E., FAO species catalogue. Vol. 16. Groupers of the world (Family Serranidae, Subfamily Epinephelinae). An annotated and illustrated catalogue of the grouper, rock cod, hind, coral grouper and lyretail species known to date.
Author: Petr Čech

Links and literature

CZ AQUATAB. World Wide Web electronic publication [species/7398]

Plíštil J. (Ed.) (2009): AQUATAB. World Wide Web electronic publication [http://aquatab.net] [as Dermatolepis striolata (Playfair, 1867)]
Data retrieved on: 17 January 2010
CH DE EN FR IT NL PR SP FishBase [6458]

Froese R., Pauly D. (eds.): FishBase [http://www.fishbase.org]
EN IUCN Red List of Threatened Species 2013.2 [44672]

IUCN Red List of Threatened Species [http://www.iucnredlist.org/] [as Dermatolepis striolata (Playfair, 1867)]
Data retrieved on: 27 January 2014

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