• Source: Faunus ater

Faunus ater is a species of brackish water snail with an operculum, an aquatic gastropod mollusk in the family Pachychilidae.
Faunus ater is the only species within the genus Faunus.




Distribution


The distribution of Faunus ater includes:

India
Sri Lanka
Andaman Islands
Malaysia
Myanmar
Thailand
Singapore
Indonesia
Philippines
New Guinea
western and southern Pacific Islands: Solomon Islands
northern Australia
China




Description


The periostracum is thick, and the color of the periostracum is dark brown or black. The shell has about 20 whorls. The apical whorls may be eroded in older snails. The aperture is ovate and white. The shell is unique among Cerithioidea, because it has two deep sinuses: an anal sinus which is close to the suture and an anterior sinus more forward in the aperture. The height of the aperture is about one-fifth of the height of the shell.
The height of the shell is usually 50–60 mm, but can be up to 90 mm.
The operculum is oval, corneous and dark brown in color.
The snail has a broad snout. The radula is large and is located in a correspondingly large buccal mass.




Ecology


This snail lives in slightly brackish water. It has also been reported from freshwater. It is the only pachychilid species that lives in brackish water; the other species in the family are freshwater snails.
The population density can reach up to 6700 snails per m2.
This snail probably feeds by grazing.
It is oviparous. It probably has free-swimming larvae.




Human use


This snail is used as a food source for humans in the Philippines and in Thailand.




References






Further reading


Gray J. E. (1867). "On the species of the genera Latiaxis, Faunus and Melanatria". American Journal of Conchology 3: 330.
Houbrick R. S. (1991). "Anatomy and systematic placement of Faunus Montfort 1810 (Prosobranchia: Melanopsinae)". Malacological Review 24: 35-54.
Yap C. K., Hisyam M. N. D., Edward F. B., Cheng W. H. & Tan S. G. (2010). "Concentrations of heavy metal in different parts of the gastropod, Faunus ater (Linnaeus), collected from intertidal areas of Peninsular Malaysia". Pertanika Journal of Tropical Agricultural Science 33(1): 45-60.




External links


Media related to Faunus ater at Wikimedia Commons

Kata Kunci Pencarian:

• Daftar spesies Scarabaeidae
• Faunus ater
• List of freshwater aquarium invertebrate species
• Pachychilidae
• Penang National Park
• List of non-marine molluscs of Indonesia
• List of least concern molluscs
• List of non-marine molluscs of Myanmar
• List of freshwater fauna of Sri Lanka
• Roman festivals
• Martin of Tours