e rolan (206 risultati)

Tapa blanda. Condizione: Muy bien. Quelle crise? Quelle société? MUY BUEN ejemplar . 201pp + índice.

New taxon: Brocchinia canariensis n. sp. 7 pp., 13 figs, br. gr. 8.

5 pp., 10 figs, br. gr. 8.

Rustica (tapa blanda). Condizione: New. Condizione sovraccoperta: Nuevo. 01. Este volumen ofrece la primera edición crítica, en bilingüe y atendiendo a todos los testimonios. manuscritos latinos y romances, de la primera parte. del Breuiloquium de amore et amicitia y su autotraducción, Tratado de amor y amiçiçia, titulada. De amore. En la obra, El Tostado determina que son dos cosas diferentes amor y amicitia, amación y amiçiçia , y deja claro que el amor es un acto pasional, una. LIBRO.

Tapa blanda. Condizione: New. PEÑAS, A. / E. ROLAN: DEEP WATER PYRAMIDELLOIDEA FROM THE CENTRAL AND SOUTH PACIFIC, 3: THE TRIBES "EULIMELLINI" AND "SYRNOLINI". 978-84-16533-79-4, UNIV. DE SANTIAGO DE COMPOSTELA, 2016. Nuevo 775 gr. Libro.

Condizione: Neuf.

Soft cover. In this book 17 new (sub)species of Conidae are described 0.0.

After some land observations, it is recorded that the gastropod Iselica anomala is a parasitic of the bivalve Atrina rigida. 5 pp., 5 figs, br. gr. 8.

2 pp., 5 figs, br. gr. 8.

The species of the genus Assiminea from the occidental African coast are studied, and comparisons with those previously known are presented. In the absence of definitive proof. it is assumed that Assiminea hessei O. Boettger, 1887 is applicable to the Angolan populations. Five new species are described. New taxa: Assiminea principensis n. sp., Assiminea saotomensis n. sp., Assiminea occulta n. sp., Assiminea senegalensis n. sp., Assiminea moroccoensis n. sp. 19 pp., 11 figs, 4.

Condizione: Good / Bien. Madrid: Universidad Complutense, 1982.- 254 p.; 4º (24 x 16 cm); Cartulina Ed. con solapas.- (Col. de Textos Clásicos).- RARO. Pequeña mancha al pie de la cubierta anterior, por lo demás muy buen estado. Libro en español LITERATURA Y FILOSOFÍA MEDIEVALES ESPAÑOLAS.

, wrps (RM6) 0.0.

A new species of Cerithiopsis, Cerithiopsis krisbergi sp. nov., from Florida, USA, is described. The new species is compared with others of brown color previously known from the Caribbean Sea. Shell, protoconch, radula and operculum are figured. 5 pp., 14 figs, gr. 8.

7 pp., 1 col. map, 3 col. pls, stapled 4.

Fusinus albacarinoides sp. nov. is described from south Portugal, off the Algarve coast in 14-22 m depth. It is characterized by having a small red-brown to dark brown shell ornamented with a conspicuous white band at the periphery, with a rough shell surface, an elongate slender spire and a short siphonal canal. The new species is distinguished by its shell morphology and the soft parts from all other eastern Atlantic and Mediterranean Fusinus and is compared to a few of them. 11 pp., 30 figs, gr. 8.

Species of the genus Seila from West Africa are studied, comparing their shell characters. The differences in the sculpture of the protoconch seem to be the most constant character. Seda kuiperi spec. nov. is described from Senegal. New taxon: Seila kuiperi n. sp. 7 pp., 35 figs, gr. 8.

The Iberian valvatoid Hydrobiidae are listed and Neohoratia azarum n. sp. is described from NW. Spain. The eight previously known taxa are all from the eastern part of the peninsula. II. The five Iberian Belgrandiella species known from the literature [B. andalucensis, B. cantabrica, B. edmundi, B.elliptica, B. rolani] are listed. In addition B. galaica n. sp. and B. asturica n. sp. are described, from Galicia and Asturia, respectively. III. Three more Belgrandiella taxa are provisionally described and listed as formae, pending future research concerning their taxonomic status. 6 pp., 16 figs, gr. 8.

New taxa: Miralda temperata n. sp., Miralda superba n. sp. 8 pp., 7 figs, 8.

New taxon: Lirularia antoniae spec. nov. 7 pp., 9 figs, 8.

A new species from Ghana supposedly belonging to the genus Notosetia is described: N. ghanensis. The protoconch and details of the shell are figured. The genus assignation is discussed and compared with the type species of the genus. 3 pp., 7 figs, 4.

Four species, collected in the Cape Verde Islands, are described as new and asigned to the genus Euthria M. E. Gray, 1830. The new species are compared with other taxa from the Mediterranean Sea and the Cape Verde Archipelago. The genera Euthria, and Buccinulum are compared and the significance of the differences between them is discussed, leading to the conclusion that both genera are valid and should be kept separated. 13 pp., 31 col. figs, gr. 8.

The second species of the genus Plagyostila is described. It was found in Dakar, Senegal. Comparison of the shell characters of the new species with those of the type species Plagyostila asturiana are made. New taxon: Plagyostila senegalensis n. sp. 4 pp., 5 figs, gr. 8.

A new species of the genus Bela Leach in Gray, 1847, from West Africa, is described and figured, and compared with the most similar one, Bela nuperrima (Tiberi, 1855). New taxon: Bela schoenherri n. sp. 8 pp., 3 plates, 4.

New taxon: Muricopsis hernandezi n. sp. 4 pp., 14 figs, 4.

New taxa: Iniforis gudeliae n. sp., Iniforis pelorcei n. sp. 6 pp., 29 figs, 4.

12 pp., 34 figs, 4.

Columbella minor Scacchi, 1836 is revised in the genus Mitrella Risso, 1826, on the basis of its original description and figure, and of the study of shell material from Mediterranean and the nearby Atlantic. A neotype of C. minor is designated. C. minor takes priority on the older name Mangelia vitrea Risso, 1826 on the basis of the article 23.9 of the Code of Zoological Nomenclature. The variability of the shell morphology, of the shell decoration and of the animal chromatism is discussed. A sibling species ranging from Alboran Island to Northern Senegal is described as Mitrella hernandezi sp. nov. Its principal diagnostic features lie in a large white pupoid protoconch instead of a small brown pointed one in M. minor, and in a thin lattice-patterned periostracum instead of a thick coarsely wrinckled on in M. minor. 15 pp., 43 figs, gr. 8.

The species of the genus Amphithalamus in Cuba Island are studied. Three new species, i.e. Amphitalamus rauli n. sp., A. albus and A. niger n. sp., are described. Moreover Amphithalamus vallei Aguayo & Jaume, 1947, the only known species in the area, is redescribed. 11 pp., 15 figs, gr. 8.

A new species in the genus Lodderena (Gastropoda: Skeneidae), Lodderena bunnelli n. sp., is described from Abaco (Bahamas). The new species is compared to L. ornata (Olsson & McGinty, 1958). 6 pp., 12 figs, gr. 8.

Galician exposed shore populations of the direct developing periwinkle Littorina saxatilis are strikingly polymorphic, with an ornamented and banded upper shore form and a smooth and unbanded lower shore form. Intermediates between the two pure forms occur in a narrow mid shore zone together with the parental forms. We have previously shown that the two pure forms share the same gene pool but that mating between them is non-random. This is due to a non-random microdistribution in the zone of overlap, and also to assortative mating. In this study we present data which show that intermediate (hybrid) females mate less often than pure females in micropatches dominated by either of the pure forms, but not in micropatches in which the two pure forms are equally common. Thus, sexual fitness in intermediate females depends on the frequency of both pure morphs. Furthermore, sexual selection against intermediate females also varies with the densities of snails within each micro patch. The biological mechanisms which may explain this particular reduction of female hybrid fitness are discussed. Assortative mating between the pure morphs is sometimes almost complete, while both morphs do not mate the intermediates assortatively. In the light of this, sexual selection against intermediate females may contribute considerably to restrict gene flow between the pure forms. 6 pp., 2 tabs, 4.