Crustacea

Lauridromia intermedia (Laurie, 1906)

Common Names

中型勞綿蟹

Languages: English

Description

Material examined

Material examined.— Longdong, Taipei County, 31 May 1999: 1 male (cw 52.6 mm, cl 47.9 mm) (NTOU). Hepingdao fishing port, Keelung City, no date: 2 females (cw 49.8 mm, cl 47.7 mm; cw 50.3 mm, cl 42.3 mm) (NTOU). Jhongyun fishing port, Kaohsiung County, 25 Mar 1998: 1 female (cw 36.0 mm, cl 35.7 mm) (NMNS).

Author(s): Chan, Tin-Yam Creative Commons: by-nc

Diagnostic Description

Diagnosis.— Carapace about as wide as long, subcircular; rostrum tridentate, but median tooth small, ventrally deflexed, not visible dorsally; anterolateral margin with first three acute, equally spaced, last tooth directed anterolaterally. Pereopods 2 and 3 dactyli with 5–8 minute spines on flexor margins. Pereopod 4 dactylus with unarmed extensor margin, flexor margin opposed by 1 distal propodal spine; propodus with 2 or 3 spines on extensor margin. Pereopod 5 dactylus with 1 spine on extensor margin, flexor margin opposed by 2 distal propodal spines; propodus with 3 smaller spines on extensor margin.

Author(s): Chan, Tin-Yam Creative Commons: by-nc

Size

Size.— Males to cw 60.7 mm (McLay, 1993); females to cw 50.3 mm.

Author(s): Chan, Tin-Yam Creative Commons: by-nc

Morphology

Colouration.— Orange-yellowish brown. Carapace with circular, dark-red patch on gastric region. Tips of cheliped fingers pink.

Author(s): Chan, Tin-Yam Creative Commons: by-nc

Remark

Remarks.Lauridromia intermedia is known to carry a sponge cap on the carapace as camouflage (McLay, 1993).

Author(s): Chan, Tin-Yam Creative Commons: by-nc

Ecology and Distribution

Habitat

Habitat.— Sublittoral; 7–150 m, but usually less than 40 m (Davie, 2002).

Author(s): Chan, Tin-Yam Creative Commons: by-nc

Distribution

Distribution.— Western Indian Ocean to Australia, New Caledonia, Philippines, Japan and Taiwan.

Author(s): Chan, Tin-Yam Creative Commons: by-nc

Taxonomy

  • Dromia intermedia Laurie, 1906: 351 [type locality: Galle, Sri Lanka].— Lin, 1949: 12.— Huang, 1994: 576. (synonym)
  • Lauridromia intermedia.— Ng, Chan & Wang, 2000: 162, fig. 2d.— Ng,Wang, Ho & Shih, 2001: 6 (synonym)

References

Davie, P. J. F. (2002).  Crustacea: Malacostraca: Eucarida (Part 2): Decapoda-Anomura, Brachyura.. (Wells, A., Houston, W. W. K., Ed.).Zoological Catalogue of Australia. . 19. 3B., xiv+641 pp..
Huang, Z. G. (1994).  Brachyura. (Huang, Z.G., Ed.).Marine species and their distributions in China’s Seas. Pp. 576–600.
Laurie, R. D. (1906).  Report on the Brachyura collected by Professor Herdman, at Ceylon, in 1902. (W. A. Herdman, Ed.).Report to the Government of Ceylon on the pearl oyster fisheries of the Gulf of Manaar. With supplementary reports upon the marine biology of Ceylon by other naturalists. Part 5, suppl. Rep. 40, 349–432, 12 text figs., 2 pls..
Lin, C. C. (1949).  A catalogue of Brachyurous Crustacea of Taiwan. Quarterly Journal of the Taiwan Museum. 2, 10-33.
McLay, C. L. (1993).  Crustacea Decapoda: the sponge crabs (Dromiidae) of New Caledonia and the Philippines with a review of the genera. (Crosnier, A., Ed.).Résultats des Campagnes MUSORSTOM, Volume 10. 156, 111–251.
Ng, P. K. L., Chan T. Y., & Wang C. H. (2000).  The crabs of the families Dromiidae, Raninidae, Corystidae and Palicidae (Crustacea: Decapoda: Brachyura) of Taiwan. (Hwang, J.S., Wang, C. H., Chan, T. Y., Ed.).Proceedings of the International Symposium on Marine Biology in Taiwan — Crustacean and Zooplankton Taxonomy, Ecology and Living Resources. No. 10, 155–180.
Ng, P. K. L., Wang C. H., Ho P. H., & Shih H. T. (2001).  An annotated list of brachyuran crabs from Taiwan (Crustacea, Decapoda). National Taiwan Museum Special Publication Series. 11, 1–86.