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Free Content On Some Cephalaspidea (Gastropoda: Opisthobranchia) from the Western and Middle Atlantic Warm Waters

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Abstract:

Seventy-two species of the Acteonidae and of the genera and known from the western Atlantic from Cape Cod to the Falklands, east to the Azores and Canaries, are listed; the 25 species represented in the present material are described and figured. Only for three, and () are the soft parts described for the first time. Several species are redescribed. Of the known species, nine have not been figured till now; 48 are descriptions of empty shells, so that their generic position remains uncertain, and the soft parts are known only for 26 species. A. Adams, 1854, is the type-species of gen. nov. and pr. are new for Brazil.

German
Die 72 Arten der Acteonidae und der Gattungen Scaphander und Philine, die vom westlichen und mittleren Atlantik von Kap Cod bis zu den Falkland-Inseln, ostwärts bis zu den Azoren und Kanaren, bekannt sind, werden aufgezählt, und die 25 Arten des vorliegenden Materials werden beschrieben und abgebildet. Nur für 3 Arten: Acteon candens, Scaphander nobilis und S. (Sabatina) bathymophilus, konnten die Weichteile erstmalig beschrieben werden. Mehrere Arten wurden wieder beschrieben. Von 48 Arten sind nur die leeren Sehalen beschrieben, 9 nicht einmal abgebildet, so dass ihre Gattunszugehörigkeit unsicher bleibt. Die Weichteile sind jetzt für 26 Arten der behandelten Gruppen bekannt. Acteon candens, Scaphander nobilis und Philine pr. falklandica sind neu für Brasilien. Acteon cumingii A. Adams, 1854, ist der Typus der neuen Gattung Mysouffa.

French
O trabalho representa 72 espécies pertencentes à Família Acteonidae e aos gêneros Scaphander e Philine, conhecidos do Atlântico Ocidental, de Cape Cod às Ilhas Malvinas, e, para leste, até Azores e Canárias, que são enumeradas, sendo as 25 das presentes coleções descritas e ilustradas. Somente de três, Acteon candens, Scaphander nobilis e S. (Sabatina) bathymophilus, as partes moles for am descritas pela primeira vez; algumas espécies são redescritas. Das espécies conhecidas, 48 são somente conhecidas pelas conchas vazias, 9 delas ainda não têm figuras, assim que a posição genêrica das 48 permanece incerta. As partes moles conhecem-se agora de 26 espécies dos grupos tratados. Acteon candens, Scaphander nobilis e Philine pr. falklandica são novos para o Brasil. Acteon cumingii A. Adams, 1854, é a espécie tipo do novo gênero Mysouffa.

Document Type: Research Article

Publication date: June 1, 1974

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  • The Bulletin of Marine Science is dedicated to the dissemination of high quality research from the world's oceans. All aspects of marine science are treated by the Bulletin of Marine Science, including papers in marine biology, biological oceanography, fisheries, marine affairs, applied marine physics, marine geology and geophysics, marine and atmospheric chemistry, and meteorology and physical oceanography.
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