Jagora Asperata on:
[Wikipedia]
[Google]
[Amazon]
''Jagora asperata'' is a species of
The shell of an adult ''Jagora asperata'' can be as long as and has a width of about . This shell is solid, dark brown to yellowish brown, highly tower–shaped, comprising up to twelve whorls. The apical whorl is truncated. The sculpture of the shell shows closely spaced axial ribs and spiral elements with tiny nodules.
The body of these snails is gray to black with filiform antennae. They are characterized by a unique reproductive system, including a long sperm gutter, a very short a spermatophore bursa and a prominent lateral ridge working as a seminal receptacle. Females carry eggs and juvenile stages within their mantle cavity. These snails feed on detritus and algae.
Pachychilidae ''Jagora aperata'' at heimbiotop.deAsean Biodiversity
{{Taxonbar, from=Q6122805 Pachychilidae Gastropods described in 1822
freshwater snail
Freshwater snails are gastropod mollusks which live in fresh water. There are many different families. They are found throughout the world in various habitats, ranging from ephemeral pools to the largest lakes, and from small seeps and springs ...
with an operculum, an aquatic gastropod
The gastropods (), commonly known as snails and slugs, belong to a large taxonomic class of invertebrates within the phylum Mollusca called Gastropoda ().
This class comprises snails and slugs from saltwater, from freshwater, and from land. T ...
mollusk in the family Pachychilidae. ''Jagora asperata'' is the type species of the genus ''Jagora''.Köhler F. & Glaubrecht M. (2003). "Morphology, reproductive biology and molecular genetics of ovoviviparous freshwater gastropods (Cerithioidea: Pachychilidae) from the Philippines, with description of the new genus ''Jagora''". '' Zoologica Scripta'' 32(1): 35-59. .
Description
The shell of an adult ''Jagora asperata'' can be as long as and has a width of about . This shell is solid, dark brown to yellowish brown, highly tower–shaped, comprising up to twelve whorls. The apical whorl is truncated. The sculpture of the shell shows closely spaced axial ribs and spiral elements with tiny nodules.
The body of these snails is gray to black with filiform antennae. They are characterized by a unique reproductive system, including a long sperm gutter, a very short a spermatophore bursa and a prominent lateral ridge working as a seminal receptacle. Females carry eggs and juvenile stages within their mantle cavity. These snails feed on detritus and algae.
Distribution and habitat
This species occurs in the northern part of the Philippines, on Luzon, Leyte Island, Samar Island and several other small islands.Köhler F. & Dames C. (2009). "Phylogeny and systematics of the Pachychilidae of mainland Southeast Asia – novel insights from morphology and mitochondrial DNA (Mollusca, Caenogastropoda, Cerithioidea)". '' Zoological Journal of the Linnean Society'' 157: 679-699. . They live in small mountain rivers with stony or sandy bottoms.References
External links
Pachychilidae ''Jagora aperata'' at heimbiotop.de
{{Taxonbar, from=Q6122805 Pachychilidae Gastropods described in 1822