Microcardium, Thiele (1934: 878)

Poutiers, Jean-Maurice, 2006, Two new species of protocardiine cockles (Mollusca, Bivalvia, Cardiidae) from the tropical Southwest Pacific, Zoosystema 28 (3), pp. 635-654 : 643-644

publication ID

https://doi.org/ 10.5281/zenodo.5390212

persistent identifier

https://treatment.plazi.org/id/03BA8443-6553-5C00-FD0F-CCBFFF21FC2D

treatment provided by

Marcus

scientific name

Microcardium, Thiele (1934: 878)
status

 

While creating Microcardium, Thiele (1934: 878) View in CoL failed to designate a type species but recorded two species in his new genus, Cardium (Fragum) torresi E. A. Smith, 1885 and Cardium (Fulvia) peramabilis . Later, a type species was independently and almost simultaneously designated by Keen (1937: 15) and by Dall et al. (1938: 153). Unfortunately, the latter authors chose Smith species, on the wrong basis that C. peramabilis was already attributed

Poutiers J.-M.

by Dall (1901) to Protocardia Beyrich, 1845 , a Mesozoic genus of different origin. Although this action is invalidated by Keen’s designation, it has undoubtedly contributed to misunderstand the true significance of Microcardium , and to its confusion with Frigidocardium ( Habe 1951: 152) to which C. torresi must be attributed. Thiele’s genus can be easily recognized from Frigidocardium by its heterogeneous sculpture ( Poutiers 1992: 142), its outer surface being divided in two strongly distinct sculptural areas, with spines restricted to the posterior one. Then, Tobarum cannot stand in Frigidocardium as originally proposed by Noda (1988: 74), but falls within Microcardium . Decussicardium Fischer-Piette, 1977 , invalidly introduced for the South African species Cardium gilchristi G. B. Sowerby III, 1904 (see Keen 1980; Voskuil & Onverwagt 1991), is another synonym of Microcardium .

In the Recent fauna, Microcardium is distributed on both sides of tropical America (for basic informations in this area, see Olsson 1961; Keen 1971; Abbott 1974), in addition to the Indo-West Pacific.

Kingdom

Animalia

Phylum

Mollusca

Class

Bivalvia

Order

Cardiida

Family

Cardiidae

Kingdom

Animalia

Phylum

Mollusca

Class

Bivalvia

Order

Cardiida

Family

Cardiidae

Kingdom

Animalia

Phylum

Mollusca

Class

Bivalvia

Order

Cardiida

Family

Cardiidae

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