N: Se describen cinco especies nuevas de moluscos marinos de la
familia Marginellidae, cuatro del género Volvarina y una del género Prunum,
a partir de ejemplares colectados en las islas de Lanzarote, Fuerteventura, Tenerife y Gran Canaria: de cuatro de ellas se aportan datos de los animales
vivos; en dos ellas se decriben la rádula y el órgano de Leiblen. Adicionalmente, se discuten algunas especies de la familia citadas previamente en las
islas, y se repudian V. monilis, V. olivaeformis, V. ampelusica y V. deliciosa
Con la finalidad de ultimar la publicación de un libro sobre
babosas marinas de las islas Canarias se describen tres nuevas especies de
moluscos opistobranquios y se citan por primera vez cinco opistobranquios
y dos sacoglosos.
A partir de ejemplares recolectados en Lanzarote y Gran
Canaria, islas Canarias, se describe una nueva especie del género Elysia
Risso, 1818, con un carácter anatómico muy singular, los parapodios se
pliegan formando seis lóbulos, tres a cada lado del eje principal y cada par
a la misma altura.
All the species of the genres Pleurobranchus Cuvier, 1804 and Berthellina Gardiner, 1936 described or cited in the Macaronesia are revised. The records of Pleurobranchus areolatus Mörch, 1863 in the Canaries are transferred to Pleurobranchus crossei Vayssiere, 1896. Pleurobranchus lowei Watson, 1897, from Madeira, is synonymized with Berthellina edwardsi (Vayssiere, 1896). The name Pleurobranchus garciagomezi Cervera, Cattaneo & Edmunds, 1996 is applied to the specimens, endemic to Cape Verde, that match in the chromatic pattern of the holotype of this species. Pleurobranchus wirtzi, new species, is described to include the rest of the specimens from other islands in the Macaronesia, identified in the literature as P. garciagomezi. Two new species of Berthella Blainville, 1828 and Berthellina are described from Cape Verde and compared with two Caribbean taxa, Pleurobranchus evelinae Thompson, 1978 and Berthellina quadridens (Mörch, 1863). New anatomical data are given on the latter. In addition, the Pleurobranchidae from Galapagos obtained in the expeditions organized by the “Museo de Ciencias Naturales de Tenerife” in Tenerife is studied, given that two Atlantic species, Pleurobranchus areolatus and Berthellina engeli Gardiner, 1936, have been recorded there.
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