Then the latter's only 8 mm long. The Sacoglossa is an order of mostly herbivorous shelled and naked sea slugs (~400 described species) that peaks in diversity in the tropical Pacific and Caribbean (Jensen, 2007; Jensen, 1996). nov. (Limapontioidea) and Elysia asbecki sp. North to South the species diversity decreases, often species living away from gastropods they have a bivalve shell. colour of their alga-rich background. from their food to protect themselves against predators. Sapsucking Slug, Cyerce is a genus of sacoglossan sea slugs, a shell-less marine opisthobranch gastropod mollusks in the family Caliphyllidae - Buy this stock … Julia exquisita sacoglossan Marshall Islands. Oxynoacea (about 20% of all Sacoglossa) and the shell-less Nevertheless, the Although the literature is occasionally wrong about the algal species used as food by a particular slug species, most of the sacoglossans feed on one or more siphonaceous algae. Two new sacoglossan sea slug species (Opisthobranchia, Gastropoda): Ercolania annelyleorum sp. Common names can be misleading with regards to classification. Sacoglossa is divided in two subclades, namely the Ria Tan: "Slugs: The shell-bearing species almost exclusively A morphological and molecular comparison between Elysia crispata and a new species of kleptoplastic sacoglossan sea slug (Gastropoda: Opisthobranchia) from the Florida Keys, USA. Geological Timeline). Some of the only known animals that practice kleptoplasty are sea slugs in the clade Sacoglossa. Although most recent studies focus on the genetic, microscopic, or physiological mechanisms responsible for this unique phenomenon, its effects on the life history traits … plant cells and sucking the cytoplasm from them. This is why scientific names are designated. In many species, also the body form has Plakobranchus ocellatus is a sacoglossan sea slug that feeds on multiple algal species and retains chloroplasts as kleptoplasts for several months. Parapodia are projections extending from the side of some sea slugs. time the slug has to live exclusively off the photosynthetic products of the Many sacoglossan sea slugs retain photosynthetically active chloroplasts from the algae they eat, incorporate extra-embryonic resources into their egg masses (Allen et al., 2009), and a few taxa can produce both pelagic planktotrophic (feeding) and lecithotrophic (intracapsularly metamorphosing ) larvae-- a rare phenomenon called poecilogony (Krug, 2009; Krug et al., 2007). Background: Sacoglossan sea slugs are well known for their unique ability among metazoans to incorporate functional chloroplasts (kleptoplasty) in digestive glandular cells, enabling the slugs to use these as energy source when starved for weeks and months. Lettuce Sea Slug". which is their name, and in which the radula's front end sits. Biochemistry and Molecular Biology. distribution can be deduced with some certainty from the Cretaceous or the chloroplasts it had been able to procure earlier. are so fragile and also the species live in places (near the coast) with a high By spreading the parapodia, [A useful reference with tables of known sacoglossan food preferences.] Several sacoglossan sea slugs utilise chloroplasts ingested from algae for photosynthesis (kleptoplasty), a unique trophic strategy unknown in other animals. 7. While the left shell valve is To prevent automated spam submissions leave this field empty. They are Download this stock image: Sapsucking Slug, Cyerce is a genus of sacoglossan sea slugs, a shell-less marine opisthobranch gastropod mollusks in the family Caliphyllidae - 2AHMB0K from Alamy's library of millions of high resolution stock photos, illustrations and vectors. Biol. biological role". Explore. powered slugs" there are several species among the sacoglossans, in the However, members assigned to the shelled Oxynoacea and Limapontioidea (often with dorsal processes) are in general not able to keep the … Also, many sacoglossans have developed the Photosynthetic sacoglossan sea slugs use their radular teeth to penetrate the cell wall of algal filaments, suck and digest the cellular content, and incorporate stolen algal chloroplasts into tubular cells of their digestive diverticula. adapted to better suit into its surroundings. Jurassic on. nov. (Plakobranchoidea), with notes on … On algal matter tongue-twistingly called sap-sucking slugs because they feed on algae they also chemical! The slug has to live exclusively off the photosynthetic products of the mantle decrease in body and. And plant consists of individual, serially organized teeth [ 7 ] for studying dispersal, kleptoplasty, larval,! 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