Genus Cyclodius Dana, 1851

Museums

Regional Maps

• Cyclodius Dana, J.D. 1851. On the Classification of the Cancroidea. American Journal of Science and Arts 12(34): 121-131 [gender masculine].

  Type species:

   Cyclodius ornatus Dana, 1852 by subsequent designation, see Rathbun, M.J. 1922. Opinion 73. Five generic names in Crinoidea, eighty-six generic names in Crustacea, and eight generic names in Acarina, placed on the Official List of Generic Names. Opin. rend. Internat. Comm. Zool. Nomencl. Smithsonian Miscellaneous Collections 73(1): 23-31.
• Phymodius Milne Edwards, A. 1863. Monographie des Crustacés fossiles de la famille des Cancériens. Annales des Sciences Naturelles, Paris 20: 273-324 pls 5-12 [283] [introduced as a subgenus in Chlorodius; gender masculine].

  Type species:

   Chlorodius ungulatus H. Milne Edwards, 1834 by subsequent designation, see Rathbun, M.J. 1930. The cancroid crabs of America of the families Euryalidae, Portunidae, Atelecyclidae, Cancridae and Xanthidae. Bulletin of the United States National Museum 152: i-xvi 1-609, text-figs 1-85 pls 1-230 [294].

 

Taxonomic Decision for Synonymy

• Forest, J. & Guinot, D. 1961. Crustacés Décapodes Brachyoures de Tahiti et des Tuamotu. Expedition française sur les recifs coralliens de la Nouvelle–Calédonie. Volume préliminaire. Paris. pp. ix-xi, 1-195 178, text-figs 18 pls [104-106] (definitely established that the two names were subjective synonyms by demonstrating that the type species of Cyclodius, C. ornatus Dana, 1852 is a junior synonym of Phymodius monticulosus (Dana, 1852) [= Cyclodius obscurus (Jacquinot, 1846)], but continued to use the junior generic name Phymodius)

 

Distribution

States

New South Wales, Queensland, Western Australia

Extra Distribution Information

Indo-west central Pacific Oceans.

IBRA and IMCRA regions

IMCRA

Southeast Transition (11), Central Eastern Province (12), Tasman Basin Province (13), Lord Howe Province (14), Timor Province (2), Cocos (Keeling) Island Province (22), Christmas Island Province (23), Northwest Shelf Province (27), Central Western Shelf Transition (28), Central Western Shelf Province (29), Northwest Transition (3), Southwest Shelf Transition (30), Southwest Shelf Province (31), Central Eastern Shelf Transition (39), Northwest Province (4), Northeast Shelf Province (40), Northeast Shelf Transition (41), Central Western Transition (5)

Other Regions

Cocos (Keeling) Islands terrestrial & freshwater, Territory of Ashmore & Cartier Islands

General References

Davie, P. 2002. Crustacea: Malacostraca: Eucarida (Part 2): Decapoda—Anomura, Brachyura. In Wells, A. & Houston, W.W.K. (eds) Zoological Catalogue of Australia. Vol. 19.3B. Melbourne : CSIRO Publishing, Australia xiv 641 pp. [520] (presenting alternative taxonomic arrangement the present treatment of Phymodius A. Milne Edwards, 1863, as a junior subjective synonym of Cyclodius Dana, 1851, is a significant departure from recent practice. Forest & Guinot (1961: 104–109) argued convincingly that the type species of Cyclodius is a junior synonym of Phymodius monticulosus (Dana, 1852) [= Cyclodius obscurus (Jacquinot, 1846)], commenting that Dana's specimens was juvenile, and that this had led to a long history of confusion. This action meant effectively that Cyclodius should have been resurrected as the senior available name. Forest & Guinot realised that this was the strictly correct course of action, but made the decision to continue using the more widely accepted name Phymodius with the codicil that they intended to apply to the International Commission of Zoological Nomenclature to suppress Cyclodius and conserve Phymodius. This action was never undertaken, but also seems completely unjustified. Cyclodius was used by a number of authors, either generically or subgenerically, during the twentieth century, and despite the juvenile state of the type specimens of the originally included species, C. ornatus and C. gracilis, the fact that Cyclodius and Phymodius are congeneric is not currently disputed. Therefore, the use of Cyclodius is a simple case of priority)

Serène, R. 1984. Crustacés Décapodes Brachyoures de l'Océan Indien occidental et de la Mer Rouge. Xanthoidea: Xanthidae et Trapeziidae. Avec un addendum par Crosnier, A.: Carpilliidae et Menippidae. Faune Tropicale 24: 1-400 figs A-C, 1-243 pls 1-48 [245] (key to species)

 

History of changes

Published	As part of group	Action Date	Action Type	Compiler(s)
04-Jun-2012		04-Jun-2012	MOVED
10-May-2012		10-May-2012	MODIFIED
		12-Feb-2010	(import)