Neoterebra sterigma
| Neoterebra sterigma | |
|---|---|
.jpeg) | |
| Shell of Neoterebra sterigma (holotype at MNHN, Paris) | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Caenogastropoda |
| Order: | Neogastropoda |
| Family: | Terebridae |
| Genus: | Neoterebra |
| Species: | N. sterigma |
| Binomial name | |
| Neoterebra sterigma (Simone, 1999) | |
| Synonyms[1] | |
| |
Neoterebra sterigma is a species of sea snail, a marine gastropod mollusk in the family Terebridae, the auger snails.[1]
Neoterebra sterigma is a typical species of deep-sea benthic snails in the western Atlantic Ocean. Its distinguishing features are fine shell carvings and wide apex angles, which are significantly different from shallow-sea species of the same genus (such as N. guadeloupensis).[2]
Classification
[edit]Neoterebra sterigma (Simone, 1999) belongs to the superfamily Conoidea, family Terebridae, and genus Neoterebra. It is currently only recorded in the Brazilian waters of the western Atlantic Ocean, with a habitat depth of 340–360 meters. It is a typical deep-sea aquatic species.[2]
Morphological Characteristics
[edit]Shell type
[edit]Small snail, shell length 16.4-24.2 mm (including paratype), with a wide and fat outline, convex whorls, and a wide apex angle (compared with the closely related species N. pruvosti).[2]
Shell surface carving
[edit]Axial ribs and spiral carvings: Axial ribs are fine and closely spaced (about 3 times the rib width), and the spiral carvings are dense and deep, cutting the top of the axial ribs to form a grid-like structure (different from the wide spacing and coarse carvings of N. pruvosti).[2]
Suture zone: With white sub-suture zone, deep indentations on the edge, and rectangular pits formed by the axial ribs inside the zone.[2]
Color: The shell color of living organisms is light yellow to pinkish white, and the sub-suture zone is white (the type specimen may fade to pure white because it was collected as a dead shell).[2]
Protoshell: 1.5-2.0 whorls, spherical core, and unclear transition from the body.[2]
Description
[edit]![[icon]](/restyle/wiki/File:Wiki_letter_w_cropped.svg){kind=small} | This section needs expansion. You can help by adding missing information. (September 2022) |
The length of the shell attains 11.9 mm.
Distribution
[edit]This species occurs in the Atlantic Ocean off Southeast Brazil.
References
[edit]- 1 2 MolluscaBase eds. (2020). MolluscaBase. Neoterebra sterigma (Simone, 1999). Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=1416762 on 2020-01-27
- 1 2 3 4 5 6 7 Dominique Lamy, Yves Terryn (2024). "A new species of Neoterebra from Guadeloupe and Martinique" (PDF).
External links
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