| Hadroconus watsoni | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Vetigastropoda |
| Superfamily: | Seguenzioidea |
| Family: | Seguenziidae |
| Subfamily: | Seguenziinae |
| Genus: | Hadroconus |
| Species: | H. watsoni |
| Binomial name | |
| Hadroconus watsoni (Dall, 1927) | |
| Synonyms [1] | |
Hadroconus watsoni is a species of extremely small deep water sea snail, a marine gastropod mollusk in the family Seguenziidae. [1]
(Original description by W.H. Dall) The height of the shell attains 5 mm. The small, white shell has a flatly conical shape, with a glassy minute nucleus of one whorl and seven subsequent whorls. The suture is closely appressed, not impressed. The whorls above the base are flat. The axial sculpture consists of many protractively flexuous extremely fine lines with wider interspaces over all the whorls. The cemented edges at the suture by their opacity look like a presutural band, but this is not reflected in the sculpture. The spiral sculpture on the spire consists of almost microscopic close striae. On the base there are about a dozen fine spiral grooves between the edge of the umbilicus and the periphery, a little coarser near the carina. The base of the shell is nearly flat, and sharply carinate at the periphery. The umbilicus is funicular, deep, the verge carinate. The aperture is quadrate, slightly oblique. Its margin is thin, sharp, and simple. [3]
This species occurs in the Atlantic Ocean off the coast of Georgia, USA.
Pleurotomella imitator is a species of sea snail, a marine gastropod mollusk in the family Raphitomidae.
Hadroconus altus is a species of sea snail, a marine gastropod mollusk in the family Seguenziidae.
Lischkeia imperialis, common name : the giant imperial margarite, is a species of sea snail, a marine gastropod mollusk in the family Eucyclidae.
Quinnia ionica is a species of sea snail, a marine gastropod mollusk in the family Seguenziidae.
Calliostoma cinctellum is a species of sea snail, a marine gastropod mollusk in the family Calliostomatidae.
Calliostoma orion is a species of sea snail, a marine gastropod mollusk in the family Calliostomatidae.
Margarites rossicus, common name : the pearly margarite, is a species of sea snail, a marine gastropod mollusk in the family Margaritidae.
Calliostoma sayanum, common name Say's top shell, is a species of sea snail, a marine gastropod mollusk in the family Calliostomatidae.
Margarites ecarinatus is a species of sea snail, a marine gastropod mollusk in the family Margaritidae.
Solariella diomedea is a species of sea snail, a marine gastropod mollusk in the family Solariellidae.
Solariella triplostephanus is a species of sea snail, a marine gastropod mollusk in the family Solariellidae.
Calliostoma stirophorum is a species of sea snail, a marine gastropod mollusk in the family Calliostomatidae.
Bathybembix aeola, common name the changing margarite, is a species of sea snail, a marine gastropod mollusk in the family Eucyclidae.
Asthelys simplex is a species of extremely small deep water sea snail, a marine gastropod mollusk in the family Seguenziidae.
Hadroconus sibogae is a species of extremely small deep water sea snail, a marine gastropod mollusk in the family Seguenziidae.
Quinnia rushi is a species of extremely small deep water sea snail, a marine gastropod mollusk in the family Seguenziidae.
Rotellenzia lampra is a species of extremely small deep water sea snail, a marine gastropod mollusk in the family Seguenziidae.
Seguenzia cervola is a species of extremely small deep water sea snail, a marine gastropod mollusk in the family Seguenziidae.
Aorotrema cistronium is a minute sea snail, a marine gastropod mollusc in the family Tornidae.
Haplocochlias turbinus is a species of sea snail, a marine gastropod mollusk in the family Skeneidae.