Results 71 to 80 of about 297 (89)
The study of newly collected, live specimens of Pupa (Acteonidae) from New Caledonia and French Polynesia, revealed the presence of six distinct species in this region, including an undescribed species. All these species are re-described and/or named using molecular and morphological evidence as well as a review of the literature and examination of ...
Kendall Feliciano+2 more
exaly +7 more sources
A new species of the genus Rapturella (Gastropoda: Acteonidae) from southeast Brazil
Acteonidae d'Orbigny, 1843 is the largest family within the superfamily Acteonoidea (Bouchet et al. 2017) and includes small gastropods typical of infralittoral environments. Most acteonids living on the continental shelf or in deep water have been described on the basis of shell morphology alone (Simone 2006; Valdés 2008; Cunha 2011; Salvador & ...
Carlo M Cunha, Luiz Ricardo L Simone
exaly +7 more sources
Twenty-three species of Acteonidae, Bullinidae and Ringiculidae are documented from the so-called “Cabarruyan” fauna from the Plio-Pleistocene of Pangasinan, the Philippines. There are eleven species of Acteonidae, one species of Bullinidae and eleven species of Ringiculidae.
Renate A. Helwerda
exaly +6 more sources
Lanayrella, a new Acteonidae genus (Gastropoda, Heterobranchia) from Tierra del Fuego
We introduce herein Lanayrella gen. nov. to accommodate two Acteonidae species that have proven resistant to stable classification: Tornatella vagabunda Mabille, 1885 and Acteon ringei Strebel, 190...
Rodrigo B. Salvador, Carlo Cunha
openaire +3 more sources
STUDIES ON THE HAEMOCYTES OF ACTEON TORNATILIS (L.) (OPISTHOBRANCHIA: ACTEONIDAE)
The blood cells of Acteon tomatilis (L.) were examined by light microscope to provide descriptions of cell types, their size distributions, "in vitro" reactions, and cytochemical properties. The haemolymph contains hyalinocytes (diameter 6.0 sd 0.8 fan) which represent about 20% of the total cell population, and stain acidophilic.
Lothar Renwrantz, Nathalie Yonow
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Summary The external features, mantle cavity, reproductive system and nervous system of Pupa kirki (Hutton, 1873) and three species of Maxacteon Rudman, 1971 are described and compared with Acteon tornatilis (L). It is suggested that the reproductive system of Pupa and Maxacteon, with two accessory sacs, the gametolytic sac and an exogenous sperm sac ...
W. B. Rudman
openaire +3 more sources
The Radula of Acteon tornatilis (L.) (Opisthobranchia: Acteonidae)
Nathalie Yonow
openaire +3 more sources
Type specimens of fossil “Architectibranchia” and Cephalaspidea (Mollusca, Heterobranchia) in the Academy of Natural Sciences of Philadelphia [PDF]
The type specimens of fossil “Architectibranchia” and Cephalaspidea (Mollusca: Heterobranchia) deposited in the Academy of Natural Sciences of Philadelphia, USA, are listed herein.
Carlo M Cunha, Rodrigo B Salvador
exaly +4 more sources
FEEDING OBSERVATIONS ON ACTEON TORNATILIS (LINNAEUS) (OPISTHOBRANCHIA: ACTEONIDAE)
Nathalie Yonow
openaire +3 more sources