| Tanychlamys indica | |
|---|---|
 | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Heterobranchia |
| Order: | Stylommatophora |
| Family: | Ariophantidae |
| Genus: | Tanychlamys |
| Species: | T. indica |
| Binomial name | |
| Tanychlamys indica (Godwin-Austen, 1883) | |
| Synonyms | |
| |
Tanychlamys indica, also known as the horntail snail [1] is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk, in the family Ariophantidae.
This species occurs in countries including:
This species has not yet become established in the USA, but it is considered to represent a potentially serious threat as a pest, an invasive species which could negatively affect agriculture, natural ecosystems, human health or commerce. Therefore, it has been suggested that this species be given top national quarantine significance in the USA. [4] In August 2020 a single horntail was found in Miami-Dade County, Florida. [1] [5] [6] [7] [8] [9]
The shell is perforate, depressed, smooth, polished throughout, translucent, pale brownish tawny, not distinctly striated, but with microscopic longitudinal impressed lines, slightly flexuous and not close together. The spire is low, conoid. The suture is slightly impressed. The shell has 5.5 whorls, that are slightly convex above. The last whorl is not descending. The last whorl is rounded at the periphery and moderately convex beneath. [2]
The aperture is slightly oblique and broadly lunate. The peristome is thin in one plane, with columellar margin is curved, oblique, never quite vertical, carried forward and briefly reflected above. [2]
The width of the shell is 16-18.5 mm. The height of the shell is 8.5 mm. [2]
The animal is purplish grey not black, elongate. The right shell-lobe is small, the left is narrowly reflected over the edge of the peristome, and at the basal side gives off a short tongue-like process. The right dorsal lobe is narrow and elongate, the left in two distinct portions. [2]
In the genitalia is a moderately long cylindrical blunt kalc-sac is given off at the junction of the vas deferens, and the caecum of the penis, to which the retractor muscle is attached, is sharply coiled. The dart-sac is long, the spermatheca short and elongately pearshaped. [2]
The radula contains about 88 rows of teeth, with the arrangement: 34.2.9.1.9.2.34 (45.1.45). [2]
Indrella is a monotypic genus containing the single species Indrella ampulla, a tropical terrestrial air-breathing gastropod mollusk in the family Ariophantidae. It is endemic to the Western Ghats of India.
Amnicola missouriensis, common name the Missouri amnicola, is a species of freshwater snail, an aquatic gastropod mollusk in the family Amnicolidae.
Canariella hispidula is a species of small, air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Canariellidae, the hairy snails and their allies.
Hyperaulax ridleyi is a species of tropical air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Odontostomidae.
Comitas pagodaeformis is a species of sea snail, a marine gastropod mollusc in the family Pseudomelatomidae, the turrids and allies.
Spergo sibogae is a species of sea snail, a marine gastropod mollusk in the family Raphitomidae.
Paracomitas undosa is a species of sea snail, a marine gastropod mollusk in the family Pseudomelatomidae, the turrids and allies.
Cryptodaphne gradata is a species of sea snail, a marine gastropod mollusk in the family Raphitomidae.
Mioawateria extensaeformis is a species of sea snail, a marine gastropod mollusk in the family Raphitomidae.
Brachytoma rufolineata is a species of sea snail, a marine gastropod mollusk in the family Pseudomelatomidae.
Calliostoma marionae, common name Marion's top shell, is a species of sea snail, a marine gastropod mollusk in the family Calliostomatidae.
Ovachlamys fulgens is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Helicarionidae.
Zachrysia provisoria, commonly known as the Cuban Brown Snail is a species of air-breathing land snail, terrestrial pulmonate gastropod mollusk in the family Zachrysiidae.
Staffordia daflaensis is a species of air-breathing land snail, terrestrial pulmonate gastropod mollusk in the family Staffordiidae.
Staffordia staffordi is a species of air-breathing land snail, terrestrial pulmonate gastropod mollusk in the family Staffordiidae.
Lirularia yamadana is a species of small sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.
Atys neglectus is a species of small tropical sea snail, a bubble snail, a marine opisthobranch gastropod mollusk in the family Haminoeidae, the haminoea bubble snails.
Eucithara harpellina is a small sea snail, a marine gastropod mollusk in the family Mangeliidae.
Otitoma timorensis is a species of sea snail, a marine gastropod mollusk in the family Pseudomelatomidae.
Alvania pukeuriensis is an extinct species of minute sea snail, a marine gastropod mollusc or micromollusk in the family Rissoidae.
The article incorporates public domain text from the reference. [2]
Media related to Macrochlamys indica at Wikimedia Commons