Results 151 to 160 of about 672 (174)

Comparison of Alimentary Systems in Shelled and Non‐shelled Sacoglossa (Mollusca, Opisthobranchia)

Acta Zoologica, 1991
AbstractThe Sacoglossa (= Ascoglossa) comprise a ‘complete’ evolutionary series from species with a large shell into which the animal can withdraw completely, through species with a reduced shell covering only the visceral mass, to shell‐less (‘nudibranchiate’) forms some of which have lateral wing‐like extensions, parapodia, others bearing leaf‐like ...
Kathe Rose Jensen
exaly   +2 more sources

“Chloroplast symbiosis” and the extent to which it occurs in Sacoglossa (Gastropoda: Mollusca)

Biological Journal of the Linnean Society, 1974
Criteria for defining “chloroplast symbiosis” are outlined. Investigations are described into the presence or absence of chloroplast symbiosis in Limapontia capitata,“pale” and “dark” forms of L. depressa, Alderia modesta and Elysia viridis. Apart from E. viridis, only “pale” forms of L. depressa showed signs of the phenomenon.
ROSALIND HINDE, D. C. SMITH
openaire   +1 more source

THE IMPORTANCE OF THE LARVAL SHELL IN THE CLASSIFICATION OF THE SACOGLOSSA AND THE ACOELA (GASTROPODA OPISTHOBRANCHIA)

Journal of Molluscan Studies, 1961
exaly   +2 more sources

The diaphanidae as a possible sister group of the sacoglossa (gastropoda, opisthobranchia)

1995
Abstract The family Diaphanidae has been proclaimed as the “ancestor” of the Sacoglossa for many years (Odhner, 1926, 1937, 1939; Boettger, 1954, 1963; Ghiselin, 1966; Gascoigne and Sartory, 1974; Salvini-Plawen, 1990). The similarity between the genus Newnesia Smith and the sacoglossan family Oxynoidae (then Lophocercidae) was noted ...
openaire   +1 more source

The internal anatomy of Stiliger fuscatus (A. Gould, 1870) (Opisthobranchia: Sacoglossa)

Zoological Journal of the Linnean Society, 1978
The central nervous system of Stiliger fuscatus has two ganglia on the visceral loop. The superficial buccal musculature includes an ascus muscle; its contraction drives the lower limb of the radula in the action of piercing an algal wall. The reproductive system is described in functional terms and related to those of other species of the family ...
openaire   +1 more source

Phagocytosis of chloroplasts in Placida dendritica (Gastropoda: Sacoglossa)

Journal of Experimental Zoology, 1976
AbstractPhagocytosis of algal chloroplasts by digestive gland cells in the sacoglossan opisthobranch Placida dendritica is described. It is suggested that engulfment of chloroplasts is accomplished by veils of cytoplasm which are derived from elongating microvilli.
openaire   +1 more source

On Candinia (Sacoglossa: Juliidae), a new fossil genus of bivalved gastropods

Journal of Paleontology, 1996
The record of the fossil representatives of the family Juliidae is updated. The new genus Candinia is proposed, in the subfamily Juliinae, for two fossil species somewhat intermediate between Julia and Berthelinia. The new species Candinia pliocaenica is recorded from the lower Pliocene shallow marine deposits near Siena (Tuscany, Italy).
Jacques Le Renard, Bruno Sabelli, Marco Taviani   +2 more
openaire   +1 more source

Sacoglossa (Mollusca: Opisthobranchia) - specialist herbivores and partial predators: integrating ecological, physiological and morphological data

1994
Zoologi
openaire   +1 more source

Chloroplasts as Functional Endosymbionts in the Mollusc Tridachia crispata (Bërgh), (Opisthobranchia, Sacoglossa)

Nature, 1969
THE sacoglossan opisthobranch gastropod Tridachia crispata (Bergh) was reported by Yonge and Nicholas1 to have symbiotic unicellular zooxanthellae (Dinophyceae). It was suggested that there was a functional relationship between the algae and the marine slugs.
openaire   +1 more source

NUTRITION OF TRIDACHIA CRISPATA (MÖRCH) (SACOGLOSSA)

Journal of Molluscan Studies, 1989
Thompson, TE, Jarman, GM
openaire   +1 more source