Von cosel r (38 risultati)

photographs, stiff wrps 0.0.

Bathymodiolus mauritanicus n. sp., taken by commercial trawler at about 1000 m off Banc d?Arguin, northern Mauritania, is described and placed in the context of the genus Bathymodiolus Kenk & Wilson, 1985. No cold seep or hydrocarbon seep has yet been discovered in this region, although the repeated appearance of other mollusc groups typical for this kind of biotope suggests their existence. The new species belongs to a rather uniform and well-defined group of four species of bathymodioline mussels, informally designated as the Bathymodiolus childressi group, which differs from typical Bathymodiolus in a number of shell and soft part characters, specifically a multibundle posterior retractor, almost terminal umbones and the attachment of the anterior retractor to the posterior part of the umbonal cavity. An attempt is also made to reevaluate most of the other species of Bathymodiolus, which results in four groups: 1) the B. thermophilus group (one species, eastern Pacific only: Galapagos, East Pacific Rise); 2) the B. brevior group (five species, Atlantic: Mid-Atlantic Ridge, West Pacific, Indian Ocean); 3) the B. heckerae group (two species, Atlantic); and 4) the B. childressi group (four species, Atlantic, West Pacific). 13 pp., 5 figs, stapled gr. 8.…

Une nouvelle esp?ce de Solemyidae de grande taille (135 mm), Acharax alinae n. sp., est d?crite du site Hine Hina sur la ride de Valufa, bassin arri?re-arc de Lau. A. alinae est d?pourvue d appareil digestif et h?berge des bact?ries pr?sum?es chimiotrophes dans les tissus branchiaux. 9 pp., 3 figs, 2 tabs, gr. 8. …

13 pp. w. 3 pls., gr. 8.

9 pp., 4 figs, gr. 8.

New taxa: Euthria boavistensis n. sp., Euthria rolani n. sp. 7 pp., 1 plate, 8.

11 pp., 4.

The small jackknife clams living on the coast of southern California, the outer coast of Baja California, and in the Gulf of California, and known as Solen rosaceus Carpenter, 1864, belong to three different species: the allopatric species pair S. (Ensisolen) rosaceus Carpenter, 1864, from southern California, and S. (E.) gemmelli sp. nov. from the upper Gulf of California (San Felipe area), and the variable and widespread S. (E.) rostriformis Dunker, 1862, from southern California to La Paz. The subgenus Ensisolen Habe, 1977, is redefined. Neotypes of Solen rosaceus Carpenter, 1864, and Solen lappeanus Dunker, 1871, are designated. New taxon: Solen (Ensisolen) gemmelli n. sp. 15 pp., 69 figs, 4.…

7 pp..

Soft cover. Iberus 13(1) 0.0.

Treated taxa: Voluta virescens, Voluta musica 22 pp., 5 pls, 8.

New taxon: Conus pseudaurantius n. sp. 79 pp., 143 figs, br. gr .8.

New taxa: Solen crosnieri n. sp., Solen madagascariensis n. sp., Solen dactylus n. sp. 20 pp., 34 figs, 5 pls, gr. 8.

115 pp., 187 figs, br. gr. 8.

42 pp., 3 tabs, 7 figs, 4.