Rough Leatherjacket, Scobinichthys granulatus (White 1790)


A female Rough Leatherjacket, Scobinichthys granulatus . Source: Rudie H. Kuiter / Aquatic Photographics. License: All rights

Summary:

Easily recognised by the rough appearance of its skin due to the relatively large scales that resemble miniature mushroom cups. Both males and females usually have a prominent dark blotch above each pectoral fin and a short black bar on the upper and lower corners of the tail.

Video of a Rough Leatherjacket at Little Manly, Sydney, New South Wales.


Cite this page as:
Bray, D.J. 2020, Scobinichthys granulatus in Fishes of Australia, accessed 24 Oct 2020, http://136.154.202.208/home/species/825

Rough Leatherjacket, Scobinichthys granulatus (White 1790)

More Info


Distribution

Restricted to the southern half of Australia from Maroochydore (Queensland) to Shark Bay (Western Australia), including Tasmania. Found in inshore waters, and fairly common in seagrass beds and of estuaries, coastal embayments and nearby coastal reefs; sometimes also seen in sponge gardens. Depth range 1-30 m. Small juveniles often shelter under floating seaweed.

Features

Dorsal fin II + 26-31; Anal fin 26-29; Caudal fin 12; Pectoral fin 11-12; Vertebrae 20.

Body rather elongate in males, oblong, of moderate depth, somewhat deeper in females, very compressed, with ventral flap of moderate to large size; caudal peduncle shallow. 

Head large, acutely pointed; eyes small; mouth very small; teeth large, central pair in each jaw pointed; gill openings in form of small slit mostly above each pectoral fin base. Skin rough to touch, each scale spinule with prominent fleshy mushroom‑like cap; lateral line difficult to detect. 

Two dorsal fins, first dorsal above eyes, consisting of prominent spine with row of barbs of moderate size along each posterolateral edge, barbs decreasing in relative size as body length increases, spine partly received into shallow to moderately deep groove when depressed, second dorsal widely separated from first, of moderate length, slightly elevated anteriorly; anal fin similar to and opposing second dorsal; caudal fin truncate. Pectoral fins moderately small, rounded. Pelvic fin rudiment obvious, immovably attached to rear end of pelvis.

Size

To 30 cm TL

Colour

Males dark brown, yellowish brown, greenish brown, bluish grey or white, usually with prominent bluish, blackish or brownish round blotch above each pectoral fin and occasionally whitish bar below this blotch; other dark blotches, dark brown spots and lines and bright blue spots and lines also generally present; forehead usually with three dark lines between eyes; caudal fin dusky with short black bar on upper and lower corners, each bar sometimes preceded by pale blotch. 

Females and juveniles pale brown to yellowish brown, with numerous darker blotches, lines and spots on head and body, round blotch above each pectoral fin usually prominent; caudal fin as in males.

Feeding

Feeds in benthic invertebrates.

Conservation

  • IUCN Red List : Least Concern
  • Species Citation

    Balistes granulata White 1790, Journal of a voyage to New South Wales: 295. Type locality: Port Jackson, New South Wales.

    Author

    Bray, D.J. 2020

    Resources

    Atlas of Living Australia

    Rough Leatherjacket, Scobinichthys granulatus (White 1790)

    References


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    Hutchins, J.B. 1994. Family Monacanthidae. pp. 866-891 figs 767-787 in Gomon, M.F., Glover, C.J.M. & Kuiter, R.H (eds). The Fishes of Australia's South Coast. Adelaide : State Printer 992 pp. 810 figs.

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    Hutchins, J.B. 2001. Monacanthidae. pp. 3929-3947 in Carpenter, K.E. & Niem, T.H. (eds). The Living Marine Resources of the Western Central Pacific. FAO Species Identification Guide for Fisheries Purposes. Rome : FAO Vol. 6 pp. 3381-4218.

    Hutchins, J.B. 2008. Family Monacanthidae. pp. 822-841 in Gomon. M.F., Bray, D.J. & Kuiter, R.H (eds). Fishes of Australia's Southern Coast. Sydney : Reed New Holland 928 pp.

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    Hyndes, G.A., Kendrick, A.J., MacArthur, L.D. & Stewart, E. 2003. Differences in the species- and size-composition of fish assemblages in three distinct seagrass habitats with differing plant and meadow structure. Marine Biology 142: 1195-1206.  

    Hyndes, G.A., Platell, M.E., Potter, I.C. & Lenanton, R.C.J. 1999. Does the composition of the demersal fish assemblages in temperate coastal waters change with depth and undergo consistent seasonal changes? Marine Biology 134: 335-352.

    Kuiter, R.H. 1993. Coastal Fishes of South-eastern Australia. Bathurst : Crawford House Press 437 pp.

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    Motomura, H., Matsuura, K. & Khan, M. 2019. Scobinichthys granulatus. The IUCN Red List of Threatened Species 2019: e.T79803203A79803218. https://dx.doi.org/10.2305/IUCN.UK.2019-1.RLTS.T79803203A79803218.en. Downloaded on 27 September 2020.

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    White, J. 1790. Journal of a Voyage to New South Wales with sixty-five plates of non-descript animals, birds, lizards, serpents, curious cones of trees and other natural productions. London : Debrett 299 pp. 65 pls. See ref at BHL

    Quick Facts


    CAAB Code:37465007

    Conservation:IUCN Least Concern

    Depth:1-30 m

    Habitat:Reef associated, seagrass beds

    Max Size:30 cm TL

    Native:Endemic

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