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Echinix Granulata
''Echinix'' is a genus of air-breathing land semi-slugs. ''Echinix'' is the only genus in the subfamily (biology), subfamily Echinichinae, terrestrial molluscs, terrestrial pulmonate gastropod mollusks in the superfamily Xanthonychoidea. This genus and family was described in December 2012. Distribution The subfamily Echinichinae is endemic to states Tamaulipas and Querétaro in northeastern List of non-marine molluscs of Mexico, Mexico. Species Species in the genus ''Echinix'' include: * ''Echinix ochracea'' Thompson & Naranjo-García, 2012 * ''Echinix granulata'' Thompson & Naranjo-García, 2012 * ''Echinix rugosa'' Thompson & Naranjo-García, 2012 Description Species in the genus ''Echinix'' are semi-slugs, which have their gastropod shell, shells completely hidden under the mantle (mollusc), mantle. There are numerous glandular papillae on the dorsal part of the body. Dart sac is a part of its Reproductive system of gastropods, reproductive system. References Externa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Archiv Für Molluskenkunde
''Archiv für Molluskenkunde'' is a peer-reviewed scientific journal published by the Senckenberg Nature Research Society, covering research in malacology. Coverage ''Archiv für Molluskenkunde'' publishes original research on all aspects of molluscan biodiversity, mostly on systematics, taxonomy, phylogeny and morphology, also accepting research on the ecology and biogeography of all groups of molluscs, both living and fossil (Cenozoic only). Articles are published in English. History ''Archiv für Molluskenkunde'' derives from the ''Nachrichtsblatt der Deutschen Malakozoologischen Gesellschaft'' 'Newsletter of the German Malacological Society'' first published in 1868. Hence it is the oldest malacological journal still publishing. The name changed in 1921, but the numbering of volumes runs continuously between the titles. The parent society transferred ownership of the journal to the Senckenberg Nature Research Society in 1936 in order to avoid government (Nazi) interference. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Non-marine Molluscs Of Mexico
The non-marine molluscs of Mexico are a part of the molluscan wildlife of Mexico. A number of species of non-marine molluscs are found in the wild in Mexico. There are about 1,178 species and subspecies of terrestrial gastropods in the Mexico.Naranjo-García E. & Fahy N. E. (2010). "The Lesser Families of Mexican Terrestrial Molluscs". '' American Malacological Bulletin'' 28(1-2): 59-80. . There are not enough records of terrestrial gastropods from states of Aguascalientes and Tlaxcala. Freshwater gastropods Neritidae * '' Clypeolum latissimum'' (Broderip, 1833)Alexander Czaja, Iris Gabriela Meza-Sánchez, José Luis Estrada-Rodríguez, Ulises Romero-Méndez, Jorge Sáenz-Mata, Verónica Ávila-Rodríguez, Jorge Luis Becerra-López, Josué Raymundo Estrada-Arellano, Gabriel Fernando Cardoza-Martínez, David Ramiro Aguillón-Gutiérrez, Diana Gabriela Cordero-Torres, Alan P. Covich (2020). "The freshwater snails (Mollusca: Gastropoda) of Mexico: updated checklist, endemicit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reproductive System Of Gastropods
The reproductive system of gastropods (slugs and snails) varies greatly from one group to another within this very large and diverse taxonomic class of animals. Their reproductive strategies also vary greatly, see Mating of gastropods. In many marine gastropods there are separate sexes (male and female); most terrestrial gastropods however are hermaphrodites. Courtship is a part of the behaviour of mating gastropods. In some families of pulmonate land snails, one unusual feature of the reproductive system and reproductive behavior is the creation and utilization of love darts, the throwing of which has been identified as a form of sexual selection. Gastropods are defined as snails and slugs, belonging to a larger group called Molluscs. Gastropods have unique reproductive systems, varying significantly from one taxonomic group to another. They can be separated into three categories: marine, freshwater, and land. Reproducing in marine or freshwater environments makes getting s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dart Sac
A love dart (also known as a gypsobelum, shooting darts, or just as darts) is a sharp, calcareous or chitinous dart which some hermaphroditic land snails and slugs create. Love darts are both formed and stored internally in a dart sac. These darts are made in sexually mature animals only, and are used as part of the sequence of events during courtship, before actual mating takes place. Darts are quite large compared to the size of the animal: in the case of the semi-slug genus ''Parmarion'', the length of a dart can be up to one fifth that of the semi-slug's foot. The process of using love darts in snails is a form of sexual selection. Prior to copulation, each of the two snails (or slugs) attempts to "shoot" one (or more) darts into the other snail (or slug). There is no organ to receive the dart; this action is more analogous to stabbing, or to being shot with an arrow or flechette. The dart does not fly through the air to reach its target, but is "fired" as a contact ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glandular Papillae
In animals, a gland is a group of cells in an animal's body that synthesizes substances (such as hormones) for release into the bloodstream ( endocrine gland) or into cavities inside the body or its outer surface ( exocrine gland). Structure Development Every gland is formed by an ingrowth from an epithelial surface. This ingrowth may in the beginning possess a tubular structure, but in other instances glands may start as a solid column of cells which subsequently becomes tubulated. As growth proceeds, the column of cells may split or give off offshoots, in which case a compound gland is formed. In many glands, the number of branches is limited, in others (salivary, pancreas) a very large structure is finally formed by repeated growth and sub-division. As a rule, the branches do not unite with one another, but in one instance, the liver, this does occur when a reticulated compound gland is produced. In compound glands the more typical or secretory epithelium is found form ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mantle (mollusc)
The mantle (also known by the Latin word pallium meaning mantle, robe or cloak, adjective pallial) is a significant part of the anatomy of molluscs: it is the dorsal body wall which covers the visceral mass and usually protrudes in the form of flaps well beyond the visceral mass itself. In many species of molluscs the epidermis of the mantle secretes calcium carbonate and conchiolin, and creates a shell. In sea slugs there is a progressive loss of the shell and the mantle becomes the dorsal surface of the animal. The words mantle and pallium both originally meant cloak or cape, see mantle (vesture). This anatomical structure in molluscs often resembles a cloak because in many groups the edges of the mantle, usually referred to as the ''mantle margin'', extend far beyond the main part of the body, forming flaps, double-layered structures which have been adapted for many different uses, including for example, the siphon. Mantle cavity The ''mantle cavity'' is a central fea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gastropod Shell
The gastropod shell is part of the body of a Gastropoda, gastropod or snail, a kind of mollusc. The shell is an exoskeleton, which protects from predators, mechanical damage, and dehydration, but also serves for muscle attachment and calcium storage. Some gastropods appear shell-less (slugs) but may have a remnant within the mantle, or in some cases the shell is reduced such that the body cannot be retracted within it (semi-slug). Some snails also possess an operculum that seals the opening of the shell, known as the Aperture (mollusc), aperture, which provides further protection. The study of mollusc shells is known as conchology. The biological study of gastropods, and other molluscs in general, is malacology. Shell morphology terms vary by species group. Shell layers The gastropod shell has three major layers secreted by the Mantle (mollusc), mantle. The calcareous central layer, tracum, is typically made of calcium carbonate precipitated into an organic matrix known as c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Echinix Rugosa
''Echinix'' is a genus of air-breathing land semi-slugs. ''Echinix'' is the only genus in the subfamily Echinichinae, terrestrial pulmonate gastropod mollusks in the superfamily Xanthonychoidea. This genus and family was described in December 2012. Distribution The subfamily Echinichinae is endemic to states Tamaulipas and Querétaro in northeastern Mexico. Species Species in the genus ''Echinix'' include: * '' Echinix ochracea'' Thompson & Naranjo-García, 2012 * ''Echinix granulata'' Thompson & Naranjo-García, 2012 * '' Echinix rugosa'' Thompson & Naranjo-García, 2012 Description Species in the genus ''Echinix'' are semi-slugs, which have their shells completely hidden under the mantle A mantle is a piece of clothing, a type of cloak. Several other meanings are derived from that. Mantle may refer to: *Mantle (clothing), a cloak-like garment worn mainly by women as fashionable outerwear **Mantle (vesture), an Eastern Orthodox ve .... There are numerous glandu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Echinix Granulata
''Echinix'' is a genus of air-breathing land semi-slugs. ''Echinix'' is the only genus in the subfamily (biology), subfamily Echinichinae, terrestrial molluscs, terrestrial pulmonate gastropod mollusks in the superfamily Xanthonychoidea. This genus and family was described in December 2012. Distribution The subfamily Echinichinae is endemic to states Tamaulipas and Querétaro in northeastern List of non-marine molluscs of Mexico, Mexico. Species Species in the genus ''Echinix'' include: * ''Echinix ochracea'' Thompson & Naranjo-García, 2012 * ''Echinix granulata'' Thompson & Naranjo-García, 2012 * ''Echinix rugosa'' Thompson & Naranjo-García, 2012 Description Species in the genus ''Echinix'' are semi-slugs, which have their gastropod shell, shells completely hidden under the mantle (mollusc), mantle. There are numerous glandular papillae on the dorsal part of the body. Dart sac is a part of its Reproductive system of gastropods, reproductive system. References Externa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Echinix Ochracea
''Echinix'' is a genus of air-breathing land semi-slugs. ''Echinix'' is the only genus in the subfamily Echinichinae, terrestrial pulmonate gastropod mollusks in the superfamily Xanthonychoidea. This genus and family was described in December 2012. Distribution The subfamily Echinichinae is endemic to states Tamaulipas and Querétaro in northeastern Mexico. Species Species in the genus ''Echinix'' include: * '' Echinix ochracea'' Thompson & Naranjo-García, 2012 * ''Echinix granulata'' Thompson & Naranjo-García, 2012 * ''Echinix rugosa'' Thompson & Naranjo-García, 2012 Description Species in the genus ''Echinix'' are semi-slugs, which have their shells completely hidden under the mantle A mantle is a piece of clothing, a type of cloak. Several other meanings are derived from that. Mantle may refer to: *Mantle (clothing), a cloak-like garment worn mainly by women as fashionable outerwear **Mantle (vesture), an Eastern Orthodox ve .... There are numerous glandul ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Querétaro
Querétaro (), officially the Free and Sovereign State of Querétaro ( es, Estado Libre y Soberano de Querétaro, links=no; Otomi language, Otomi: ''Hyodi Ndämxei''), is one of the Political divisions of Mexico, 32 federal entities of Mexico. It is divided into Municipalities of Querétaro, 18 municipalities. Its capital city is Santiago de Querétaro. It is located in north-central Mexico, in a region known as Bajío. It is bordered by the states of San Luis Potosí to the north, Guanajuato to the west, Hidalgo (state), Hidalgo to the east, State of Mexico, México to the southeast and Michoacán to the southwest. The state is one of the smallest in Mexico, but also one of the most heterogeneous geographically, with ecosystems varying from deserts to tropical rainforest, especially in the Sierra Gorda, which is filled with microecosystems. The area of the state was located on the northern edge of Mesoamerica, with both the Purépecha Empire and Aztec Empire having influence in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus comes above species and below family (taxonomy), family. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus. :E.g. ''Panthera leo'' (lion) and ''Panthera onca'' (jaguar) are two species within the genus ''Panthera''. ''Panthera'' is a genus within the family Felidae. The composition of a genus is determined by taxonomy (biology), taxonomists. The standards for genus classification are not strictly codified, so different authorities often produce different classifications for genera. There are some general practices used, however, including the idea that a newly defined genus should fulfill these three criteria to be descriptively useful: # monophyly – all descendants ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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