Gibbes, 1850

Diagnosis:
Posterior branchial carinae of carapace straight or only slightly convex, lying in one line with anterior branchial carinae. Posterior incision of orbit without tubercle. Lateral margin of carapace with eight (rarely seven) posterolateral teeth. Anterior teeth of epistome directed forwards. Merus of third maxilliped evenly swollen, most of incisions of inner margin reach beyond middle of segment; anterolateral angle of ischium reaching only slightly beyond base of merus, top rounded.

Type:
Type locality: unknown. Holotype in "Cabinet.. of the Lyceum of Natural History, of New York", present whereabouts unknown.

Geographical Distribution:
Indo-West Pacific region: East Africa (Kenya to Cape Province), Western Indian Ocean (N.W: Madagascar, Mauritius-Seychelles Ridge), and from Korea and Japan, to the South China Sea, Taiwan, Vietnam, the Philippines and Western Australia.

Habitat and Biology:
Depth range from 37 to 400 m; substrates of fine sediments (sand and mud).

Size:
Carapace lengths 3 to 7.7 cm; maximum total body length about 19 cm.

Interest to Fisheries:
In Korea and Japan, as well a as in Taiwan, the species is sold at the markets. In Japan and Taiwan it is obtained by trawlers, in Japan also by long line fishery. Ivanov and Krylov (1980:287) recorded catches of 19.2 kg/hour and 22.6 kg/hour in the western Indian Ocean.

Kingdom Animalia
Phylum Arthropoda
Class Crustacea
Order Decapoda
Suborder Macrura Reptantia
Superfamily Palinuroidea
Family Scyllaridae
Subfamily Ibacinae
Genus Ibacus
Species Ibacus novemdentatus

Status in World Register of Marine Species

Accepted name: Ibacus novemdentatus Gibbes, 1850

Scientific synonyms and common names

Ibacus novemdentatus Gibbes, 1850

Synonyms:
Ibacus novemdentatus Gibbes, 1850, Proceedings American Association Advancement Science, 3: 19.

FAO Names:
Smooth fan lobster [English]
Cigale glabre [French]
Cigarra liso [Spanish]

Local Names:
JAPAN: Ohba-uchiwa-ebi, Kejirami-gani (Shimane)
MOZAMBIQUE: Cava-cava lisa
SOUTH AFRICA: Digging lobster

Fischer, W. and G. Bianchi (eds), 1984. FAO species identification sheets for fishery purposes. Western Indian Ocean (Fishing Area 51), vol. 5:pag.var.

Gibbes, L.R., 1850. On the carcinological collections of the cabinets of Natural history in the United States with an enumeration of the species contained therein, and descriptions of new species. Proceedings American Association Advancement Science, 3: 165-201.

Holthuis, L.B., 1985. A revision of the family Scyllaridae (Crustacea: Decapoda: Macrura). I. Subfamily Ibacinae. Zoölogische Verhandelingen, Leiden, 218:1-130, figs 1-27

Ivanov, B.G. and V.V. Krylov, 1980. Length-weight relationship in some common prawns and lobsters (Macrura, Natantia and Reptantia) from the western Indian Ocean. Crustaceana, 38:279-289

You can continue searching for Ibacus novemdentatus on one of these Web sites:

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