| Oligohalinophila dorri | |
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| Oligohalinophila dorri shell | |
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| Species: | O. dorri |
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| Oligohalinophila dorri | |
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Oligohalinophila dorri is a species of brackish water snail, with gills and an operculum, a gastropod mollusk in the family Nassariidae, the nassa mud snails or dog whelks. [2]
This species was described under the name Canidia dorri by Gustave-Éduard Joseph Wattebled in 1886. [1] Two syntypes are stored in National Museum of Natural History in Paris. [3] The specific name dorri is in honour of captain Émile Dorr (1857-1907) who collected type specimens in North Central Coast region of nowadays Vietnam. [1]
This species was not reported since 1886 until 2001. [3] Kantor & Kilburn (2001) [3] reported on the rediscovery of Nassodonta dorri, described the shell, radula and provided some preliminary anatomical observations based on a single, poorly preserved female, and discussed the family placement of the genus. [4] They also moved this species to the genus Nassodonta within Nassariidae. [3] There was Nassodonta insignis as the only species within the genus Nassodonta. [3]
Simone (2007) [5] provided a description of the external anatomy, proboscis musculature and radula, based on semi-mummified specimens. [4]
Strong et al. provided anatomical and molecular phylogeny analysis and placed it into the newly established subfamily Anentominae and they confirmed the placement of this species within family Nassariidae. [4]
In 2019 Neiber M.T. & Glaubrecht M. moved this species to a new genus Oligohalinophila in the subfamily Anentominae. [6]
Distribution of Oligohalinophila dorri include Vietnam: lagune de Kao-hai near Huế, Thừa Thiên-Huế Province, Central Vietnam [3] and Phan Ri River, Bình Thuận Province, Southeast Vietnam. [4] It was also reported as abundant species from Nha Trang, Khánh Hòa Province in South Central Coast and from Phan Rang–Tháp Chàm, Ninh Thuận Province. [3]
The type locality is lagune de Kao-hai near Huế. [1]
The shell is thick. [3] The shape of the shell is oblong-ovate. [3] The shell has 2.25 distinctly shouldered whorls. [4] [3] The spire is low and obtuse. [3] The body whorl is subcyrindrical. [3] The width of the shell is 8.0-9.6 mm. [3] Shell length is 12.0-14.9 mm. [3]
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Operculum is thin, elongate, oval with basal nucleus. [4] The length of the operculum is 5.7 mm. [3]
Head is small and broad, with very short, thick cephalic tentacles. [4] Eyes are slightly elevated on prominent ocular peduncles at tentacle outer bases. [4] Foot is broad, fleshy, overlapping sides of operculum in preserved specimens. [4] Frontal part of the foot (propodium) is narrow with posterior extent marked by indistinct notch, poorly demarcated from mesopodium. [4] There is shallow propodial pedal gland along anterior edge, with two histologically distinct subepithelial gland cells. [4] Metapodium has no posterior tentacles. [4]
 ag, albumen gland; au, auricle; c, caecum; ct, ctenidium; dg, digestive gland; ebv, efferent branchial vein; f, foot; hg, hypobranchial gland; kd, kidney; ngl, nephridial gland; op, operculum; ov, ovary; ppg, propodial pedal gland; r, rectum; si, siphon; v, ventricle. |  ov, ovary; c, caecum; dg, digestive gland; cm, columellar muscle; ag, albumen gland; cg, capsule gland; r, rectum; ct, ctenidium; os, osphradium; f, foot; p, propodium; t, cephalic tentacle; si, siphon. |
Mantle cavity is short, less than one-half whorl in length. [4] There is reno-pericardial complex just behind the mantle cavity. [4] Mantle cavity is slightly asymmetrical, slightly deeper at left side in front of pericardium. [4]
Reproductive system: has separate sexes (i.e. these snails are dioecious). [4]
Females: ovipositor is forming deep, simple pore surrounded by weakly developed subepithelial glands. [4]
Oligohalinophila dorri live in lower parts of rivers. [3] Reported depth is about 3 m. [3] This species lives in turbid brackish waters and is capable of withstanding a wide range of salinities. [4]
Neogastropoda is an order of sea snails, both freshwater and marine gastropod molluscs.
Hydrobiidae, commonly known as mud snails, is a large cosmopolitan family of very small freshwater and brackish water snails with an operculum; they are in the order Littorinimorpha.
The Buccinidae are a very large and diverse taxonomic family of large sea snails, often known as whelks or true whelks.
The Trochidae, common name top-snails or top-shells, are a family of various sized sea snails, marine gastropod molluscs in the subclass Vetigastropoda. This family is commonly known as the top-snails because in many species the shell resembles a toy spinning top.
Helicidae is a large, diverse family of western Palaearctic, medium to large-sized, air-breathing land snails, sometimes called the "typical snails." It includes some of the largest European land snails, several species are common in anthropogenic habitats, and some became invasive on other continents. A number of species in this family are valued as food items, including Cornu aspersum the brown or garden snail, and Helix pomatia. The biologies of these two species in particular have been thoroughly studied and documented.
Beddomeia minima is a population of freshwater snails that are endemic to Australia. It is commonly classified as a hydrobiid snail. This population was listed as Vulnerable on the IUCN Red List in 2011 due to its distribution being restricted to a single location and range of possible threats present in Tasmania. Beddomeia minima is one of a few fresh water snail species belonging to the same genus Beddomeia that survive in Tasmania, Australia, specifically a single location in the Scottsdale area.
Madagasikara spinosa is a species of tropical freshwater snail with a gill and an operculum, an aquatic gastropod mollusc in the family Pachychilidae.
The Nassariidae, Nassa mud snails (USA), or dog whelks (UK), are a taxonomic family of small to medium-sized sea snails, marine gastropod mollusks in the clade Neogastropoda.
Chrysomallon squamiferum, commonly known as the scaly-foot gastropod, scaly-foot snail, sea pangolin, or volcano snail is a species of deep-sea hydrothermal-vent snail, a marine gastropod mollusc in the family Peltospiridae. This vent-endemic gastropod is known only from deep-sea hydrothermal vents in the Indian Ocean, where it has been found at depths of about 2,400–2,900 m (1.5–1.8 mi). C. squamiferum differs greatly from other deep-sea gastropods, even the closely related neomphalines. In 2019, it was declared endangered on the IUCN Red List, the first species to be listed as such due to risks from deep-sea mining of its vent habitat.
Tritia incrassata, common name the thick-lipped dogwhelk, is a species of small sea snail, a marine gastropod mollusk in the family Nassariidae, the Nassa mud snails or dog whelks.
Terebralia palustris, common name the giant mangrove whelk, is a species of brackish-water snail, a gastropod mollusk in the family Potamididae. This tropical species which inhabits mangrove environments of the Indo-West Pacific region, has the widest geographic distribution amongst the potamidids extending from eastern Africa to northern Australia. Terebralia palustris is the largest mangrove gastropod, with a maximum shell length of 190 mm recorded from Arnhem Land, Australia.
Jagora asperata is a species of freshwater snail with an operculum, an aquatic gastropod mollusk in the family Pachychilidae. Jagora asperata is the type species of the genus Jagora.
Nassarius fossatus, the channeled basket snail, is a species of sea snail, a marine gastropod mollusc in the family Nassariidae, the nassa mud snails or dog whelks. It is native to the west coast of North America where it is found on mudflats on the foreshore and on sand and mud in shallow water.
Clea hidalgoi is a Southeast Asian species of freshwater snail with an operculum, an aquatic gastropod mollusk in the family Nassariidae, most of which are marine.
Clea nigricans is a species of freshwater snail with an operculum, an aquatic gastropod mollusk in the family Buccinidae, the true whelks, most of which are marine.
Nassodonta is a genus of brackish water snails, gastropod mollusks in the family Nassariidae.
Nassodonta insignis is a species of brackish water snail, with gills and an operculum, a gastropod mollusk in the family Nassariidae.
Nassodonta annesleyi is a species of brackish water snail, with gills and an operculum, a gastropod mollusk in the family Nassariidae.
Oligohalinophila is a genus of freshwater snails with opercula, aquatic gastropod mollusks in the subfamily Anentominae of the family Nassariidae. It is one of few freshwater species in this family, which is a predominately marine family.
Volutharpa is a genus of sea snails, marine gastropod mollusks in the family Buccinidae, the true whelks.
This article incorporates CC-BY-4.0 text from the reference [4]
