Istiblennius dussumieri

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Istiblennius dussumieri
Istiblennius dussumieri.JPG
Scientific classification Red Pencil Icon.png
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Blenniiformes
Family: Blenniidae
Genus: Istiblennius
Species:
I. dussumieri
Binomial name
Istiblennius dussumieri
(Valenciennes, 1836)

Istiblennius dussumieri, the streaky rockskipper, is a species of combtooth blenny found in coral reefs in the western Pacific and Indian Oceans. It is also commonly known as the Dussumier's rockskipper, streaky dussumier, or the Dussumier's blenny.

Contents

Description

Istiblennius dussumieri is dusky in colour marked with six to seven irregular double dusky bars on the flanks, there is a dark spot on the anterior part of the dorsal fin between the first two spines, and it has further dark spots on the dorsal and caudal fins. The females have dusky spots scattered over the body which correspond to the bands on the males, while the males show broad dark margins on the dorsal, caudal and anal fins. [2] It can reach a maximum of 12 cm (4.7 in) TL. [3]

Distribution

Istiblennius dussumieri occurs throughout the Indo-West Pacific and marginally in the south-eastern Atlantic. Its range extends from the Cape of Good Hope eastwards through the Indian Oceamn and the western Pacific as far as Palau. It extends south as far as Lord Howe Island and north to Taiwan, in 2006 it was recorded in the Ryukyu Islands of Japan. [1]

Habitat and biology

Istiblennius dussumieri occurs along very shallow rocky coasts, frequently in the intertidal zone where the water is less than 1 metre (3.3 ft) deep. [2] It prefers sheltered shorelines where it often occurs along with Istiblennius edentulus . [1] It will also occur in mangrove areas. They are oviparous and form pairs, the eggs adhere to the substrate while the planktonic larvae are found in shallow, coastal waters. [3]

Etymology

The specific name honours the collector of the type, the French voyager and merchant Jean-Jacques Dussumier (1792–1883). [4]

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References

  1. 1 2 3 Williams, J.T. (2014). "Istiblennius dussumieri". IUCN Red List of Threatened Species . 2014: e.T48342482A48377855. doi: 10.2305/IUCN.UK.2014-3.RLTS.T48342482A48377855.en . Retrieved 19 November 2021.
  2. 1 2 Bray, D.J. (2017). "Istiblennius dussumieri". Fishes of Australia. Museums Victoria. Retrieved 10 Mar 2019.
  3. 1 2 Froese, Rainer and Pauly, Daniel, eds. (2013). "Istiblennius dussumieri" in FishBase . February 2013 version.
  4. Christopher Scharpf; Kenneth J. Lazara (26 October 2018). "Order BLENNIIFORMES: Family BLENNIIDAE". The ETYFish Project Fish Name Etymology Database. Christopher Scharpf and Kenneth J. Lazara. Retrieved 10 March 2019.