|
Lacuna (gastropod)
''Lacuna'' is a genus of sea snails, marine gastropod mollusks in the family Littorinidae, the winkles or periwinkles. Description The spiral animal body is elongated. The mouth has a proboscis with two thick lips and a spiral, filiform tongue. There are two slender, contractile tentacles with the eyes on small pedicels near their base. The foot is oval and somewhat broader behind. The thin shell has an ovate-conical or subglobose shape and is covered with a delicate horny periostracum. It has a short spire with convex whorls that are rapidly expanding. The last whorl is ventricose, i.e. inflated in the middle. The apex is rather obtuse. The oval or roundish aperture is covered with a horny, spirally marked operculum. The peristome is incomplete behind. The columella Lucius Junius Moderatus Columella (; Arabic: , 4 – ) was a prominent writer on agriculture in the Roman Empire. His ' in twelve volumes has been completely preserved and forms an important source on ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lacuna Crassior
''Lacuna crassior'' is a species of sea snail, a marine gastropod mollusk in the family (biology), family Littorinidae, the winkles or periwinkles. Distribution ''Lacuna crassior'' is a circumboreal and subarctic species that has Britain as its southern limit. It has though be found in the Channel Islands and Roscoff, the edges of its southerly range. Description ''Lacuna crassior'' is yellow in colour and can grow up to 14 × 10 mm in length. The maximum recorded gastropod shell, shell length is 14 mm.Welch J. J. (2010). "The "Island Rule" and Deep-Sea Gastropods: Re-Examining the Evidence". ''PLoS ONE'' 5(1): e8776. . Its body is very similar in shape to the ''Lacuna vincta'', with a long, broad snout and slender head tentacles. Its foot is elongated, with a double-edged anterior margin and two short, white, metapodial tentacles projecting from below the Operculum (gastropod), operculum. These metapodial tentacles are less flattened than those of ''Lacuna vincta''. T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Umbilicus (mollusc)
The umbilicus of a shell is the axially aligned, hollow cone-shaped space within the whorls of a coiled mollusc shell. The term umbilicus is often used in descriptions of gastropod shells, i.e. it is a feature present on the ventral (or under) side of many (but not all) snail shells, including some species of sea snails, land snails, and freshwater snails. The word is also applied to the depressed central area on the planispiral coiled shells of ''Nautilus'' species and fossil ammonites. (These are not gastropods, but shelled cephalopods.) In gastropods The spirally coiled whorls of gastropod shells frequently connect to each other by their inner sides, during the natural course of its formation. This results in a more or less solid central axial pillar, known as the columella. The more intimate the contact between the concave side of the whorls is, the more solid the columella becomes. On the other hand, if this connection is less intense, a hollow space inside the whorls may re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lacuna Macrostoma
Lacuna (plural lacunas or lacunae) may refer to: Related to the meaning "gap" * Lacuna (manuscripts), a gap in a manuscript, inscription, text, painting, or musical work **Great Lacuna, a lacuna of eight leaves where there was heroic Old Norse poetry in the ''Codex Regius'' * Lacuna (music), an intentional, extended passage in a musical work during which no notes are played * Scientific lacuna, an area of science that has not been studied but has potential to be studied * Lacuna or accidental gap, in linguistics, a word that does not exist but which would be permitted by the rules of a language * Lacuna, in law, largely overlapping a ''non liquet'' ("it is not clear"), a gap (in the law) In medicine * Lacuna (histology), a small space containing an osteocyte in bone, or chondrocyte in cartilage * Muscular lacuna, a lateral compartment of the thigh * Vascular lacuna, a medial compartment beneath the inguinal ligament * Lacuna magna, the largest of several recesses in the urethra O ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lacuna Lukinii
''Lacuna lukinii'' is a species of sea snail, a marine gastropod mollusk in the family Littorinidae The Littorinidae are a taxonomic family of over 200 species of sea snails, marine gastropod molluscs in the clade Littorinimorpha, commonly known as periwinkles and found worldwide. Names In English-speaking countries, gastropod molluscs from o ..., the winkles or periwinkles. References Littorinidae Gastropods described in 1985 {{Littorinidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lacuna Lepidula
''Lacuna lepidula'' is a species of sea snail, a marine gastropod mollusk in the family Littorinidae The Littorinidae are a taxonomic family of over 200 species of sea snails, marine gastropod molluscs in the clade Littorinimorpha, commonly known as periwinkles and found worldwide. Names In English-speaking countries, gastropod molluscs from o ..., the winkles or periwinkles. References Littorinidae Gastropods described in 1863 {{Littorinidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lacuna Latifasciata
''Lacuna latifasciata'' is a species of sea snail, a marine gastropod mollusk in the family Littorinidae The Littorinidae are a taxonomic family of over 200 species of sea snails, marine gastropod molluscs in the clade Littorinimorpha, commonly known as periwinkles and found worldwide. Names In English-speaking countries, gastropod molluscs from o ..., the winkles or periwinkles. References Littorinidae Gastropods described in 1863 {{Littorinidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lacuna Houdasi
Lacuna (plural lacunas or lacunae) may refer to: Related to the meaning "gap" * Lacuna (manuscripts), a gap in a manuscript, inscription, text, painting, or musical work **Great Lacuna, a lacuna of eight leaves where there was heroic Old Norse poetry in the ''Codex Regius'' * Lacuna (music), an intentional, extended passage in a musical work during which no notes are played * Scientific lacuna, an area of science that has not been studied but has potential to be studied * Lacuna or accidental gap, in linguistics, a word that does not exist but which would be permitted by the rules of a language * Lacuna, in law, largely overlapping a ''non liquet'' ("it is not clear"), a gap (in the law) In medicine * Lacuna (histology), a small space containing an osteocyte in bone, or chondrocyte in cartilage * Muscular lacuna, a lateral compartment of the thigh * Vascular lacuna, a medial compartment beneath the inguinal ligament * Lacuna magna, the largest of several recesses in the urethra O ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lacuna Grandis
Lacuna (plural lacunas or lacunae) may refer to: Related to the meaning "gap" * Lacuna (manuscripts), a gap in a manuscript, inscription, text, painting, or musical work **Great Lacuna, a lacuna of eight leaves where there was heroic Old Norse poetry in the ''Codex Regius'' * Lacuna (music), an intentional, extended passage in a musical work during which no notes are played * Scientific lacuna, an area of science that has not been studied but has potential to be studied * Lacuna or accidental gap, in linguistics, a word that does not exist but which would be permitted by the rules of a language * Lacuna, in law, largely overlapping a ''non liquet'' ("it is not clear"), a gap (in the law) In medicine * Lacuna (histology), a small space containing an osteocyte in bone, or chondrocyte in cartilage * Muscular lacuna, a lateral compartment of the thigh * Vascular lacuna, a medial compartment beneath the inguinal ligament * Lacuna magna, the largest of several recesses in the urethra O ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lacuna Globulosa
Lacuna (plural lacunas or lacunae) may refer to: Related to the meaning "gap" * Lacuna (manuscripts), a gap in a manuscript, inscription, text, painting, or musical work **Great Lacuna, a lacuna of eight leaves where there was heroic Old Norse poetry in the ''Codex Regius'' * Lacuna (music), an intentional, extended passage in a musical work during which no notes are played * Scientific lacuna, an area of science that has not been studied but has potential to be studied * Lacuna or accidental gap, in linguistics, a word that does not exist but which would be permitted by the rules of a language * Lacuna, in law, largely overlapping a ''non liquet'' ("it is not clear"), a gap (in the law) In medicine * Lacuna (histology), a small space containing an osteocyte in bone, or chondrocyte in cartilage * Muscular lacuna, a lateral compartment of the thigh * Vascular lacuna, a medial compartment beneath the inguinal ligament * Lacuna magna, the largest of several recesses in the urethra O ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lacuna Dutemplii
Lacuna (plural lacunas or lacunae) may refer to: Related to the meaning "gap" * Lacuna (manuscripts), a gap in a manuscript, inscription, text, painting, or musical work **Great Lacuna, a lacuna of eight leaves where there was heroic Old Norse poetry in the ''Codex Regius'' * Lacuna (music), an intentional, extended passage in a musical work during which no notes are played * Scientific lacuna, an area of science that has not been studied but has potential to be studied * Lacuna or accidental gap, in linguistics, a word that does not exist but which would be permitted by the rules of a language * Lacuna, in law, largely overlapping a ''non liquet'' ("it is not clear"), a gap (in the law) In medicine * Lacuna (histology), a small space containing an osteocyte in bone, or chondrocyte in cartilage * Muscular lacuna, a lateral compartment of the thigh * Vascular lacuna, a medial compartment beneath the inguinal ligament * Lacuna magna, the largest of several recesses in the urethra O ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lacuna Dialyta
Lacuna (plural lacunas or lacunae) may refer to: Related to the meaning "gap" * Lacuna (manuscripts), a gap in a manuscript, inscription, text, painting, or musical work **Great Lacuna, a lacuna of eight leaves where there was heroic Old Norse poetry in the ''Codex Regius'' * Lacuna (music), an intentional, extended passage in a musical work during which no notes are played * Scientific lacuna, an area of science that has not been studied but has potential to be studied * Lacuna or accidental gap, in linguistics, a word that does not exist but which would be permitted by the rules of a language * Lacuna, in law, largely overlapping a ''non liquet'' ("it is not clear"), a gap (in the law) In medicine * Lacuna (histology), a small space containing an osteocyte in bone, or chondrocyte in cartilage * Muscular lacuna, a lateral compartment of the thigh * Vascular lacuna, a medial compartment beneath the inguinal ligament * Lacuna magna, the largest of several recesses in the urethra O ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lacuna Decorata
''Lacuna decorata'' is a species of sea snail, a marine gastropod mollusk in the family Littorinidae The Littorinidae are a taxonomic family of over 200 species of sea snails, marine gastropod molluscs in the clade Littorinimorpha, commonly known as periwinkles and found worldwide. Names In English-speaking countries, gastropod molluscs from o ..., the winkles or periwinkles. References * Reid, D.G. (1989a) ''The comparative morphology, phylogeny and evolution of the gastropod family Littorinidae.'' Philosophical Transactions of the Royal Society of London, Series B 324: 1–110 Littorinidae Gastropods described in 1861 {{Littorinidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
