CZ EN
SEARCH  

Taxon profile

species

Galeodea echinophora (Linnaeus, 1758)

kingdom Animalia - animals »  phylum Mollusca - mollusks »  class Gastropoda - gastropods »  order Littorinimorpha »  family Cassidae - Helmet Shells »  genus Galeodea

Scientific synonyms

Buccinum echinophorum Linnaeus, 1758
Cassidaria echinophora (Linnaeus, 1758)
Morio echinophorus (Linnaeus, 1758)
Cassidaria echinophora var. adriatica Mascarini, 1884
Morio adriatica Coen, 1914
Morio echinophorus var. aequistriata Coen, 1920
Oocorys alboranensis Settepassi, 1970
Cassidaria bistriata Settepassi, 1970
Morio echinophorus var. bivaricosa Coen, 1933
Morio echinophorus var. bonanni Coen, 1920

Images

Galeodea echinophora

Author: Jiří Novák

Galeodea echinophora

Author: Jiří Novák

Galeodea echinophora

Author: Jiří Novák

Galeodea echinophora

Author: Bruguière, L.G.

Galeodea echinophora

Author: Alan Beu

Taxon in country check-lists*

* List of countries might not be complete

Description

Galeodea echinophora occurs in relatively shallow water, and is included here because it is the type species of Galeodea, to make coverage of the Recent species of the genus complete, and for comparison with the deep-water species revised here. Excellent coloured figures by Giannuzzi-Savelli et al (1996: figs 839-860) give a good idea of the range of variation of this species. Galeodea echinophora is a relatively wide species of Galeodea, of average size for the genus. Most specimens have prominent sculpture of wide spiral cords and 3-5 rows of moderately large nodules, of which the one peripheral row is present on spire whorls. The anterior siphonal canal is moderately long to very long (at least for a Recent species; some Early Cenozoic fossil Galeodea species have much longer canals) and is obviously but, in most specimens, rather weakly twisted. A constant character is the prominent, wide, relatively thick, but nearly smooth inner lip collar, which is raised well above the previous whorl over the neck. The operculum, as in other species referred here to the genus, is narrowly oval, with the left posterior margin weakly embayed to accommodate the parietal area, and with its nucleus at the anterior third of the height, against the abaxial (right) edge of the operculum; a weak furrow extends parallel to the right margin above and below the nucleus, and is present also on the operculum of some of the other relatively large species of Galeodea, such as G. alcocki and G. rugosa. The protoconch (Figs 11 A, C, E) is standard for Recent species of Galeodea, and is 1.3 mm in diameter.
The form adriatica of Galeodea echinophora, having smooth, strap-like cords instead of nodules, has been thought by some authors to be a distinct species limited to the Adriatic Sea. However, this form is far from limited to the Adriatic, and intergrades completely with G. echinophora, as was concluded also by Bouchet & Waren (1993: 800). The name adriatica has generally been attributed to Coen (1914), but was published first by Mascarini (1884). One of the most extreme variants I know of (other than teratalogical ones such as Pyrula provincialis Martin, 1851) is the short-spired, strongly inflated, very weakly sculptured specimen illustrated by Settepassi (1970, appendix: 6) under the name Oocorys alboranensis. This specimen has a relatively long, weakly twisted canal and a wide inner lip collar. These characters are unknown in Oocorys but, along with the low spire and wide spiral cords, are diagnostic of G. echinophora. There is no doubt that O. alboranensis is merely another synonym of G. echinophora, as also was concluded by Bouchet & Waren (1993: 800) after examination of the holotype.
Beu, A.G. 2008, Recent deep-water Cassidae of the world
Author: Jan Delsing

Included taxa

Number of records: 2

subspecies Galeodea echinophora adriatica C. Linnaeus, 1758
subspecies Galeodea echinophora solida M.E.J. Bucquoy & P. Dautzenberg, 1882

Links and literature

EN Galli C.: WMSDB - Wolrdwide Mollusc Species Data Base July 10, 2013 [http://www.bagniliggia.it/WMSD/WMSDhome....] [as Galeodea echinophora (Linnaeus, 1758)]
Data retrieved on: 23 November 2013
CZ Pfleger V. (1999): České názvy živočichů III. Měkkýši (Mollusca), Národní muzeum, (zoologické odd.), Praha, 108 pp. [as Galeodea echinophora (LINNÉ, 1758)]
Data retrieved on: 11 November 2013
IT Repetto G., Orlando F. & Arduino G. (2005): Conchiglie del Mediterraneo, Amici del Museo "Federico Eusebio", Alba, Italy [as Galeodea echinophora (Linné, 1758)]
EN Petović S., Gvozdenović S., Ikica Z. (2017): An Annotated Checklist of the Marine Molluscs of the South Adriatic Sea (Montenegro) and a Comparison with Those of Neighbouring Areas, Turkish Journal of Fisheries and Aquatic Sciences 17: 921-934 [as Galeodea echinophora (Linnaeus, 1758)]

Contributions to BioLib

Help us to expand this encyclopedia! If you are logged in, you can add new subtaxa, vernacular and scientific names, texts, images or intertaxon relationships for this taxon.

Names (not confirmed) - 1
Comments