Gofas S. (2007). Rissoidae (Mollusca: Gastropoda) from northeast Atlantic seamounts. <i>Journal of Natural History 41(13–16)</i>: 779–885 page(s): 845-847 [details]
original descriptionGofas S. (2007). Rissoidae (Mollusca: Gastropoda) from northeast Atlantic seamounts. <i>Journal of Natural History 41(13–16)</i>: 779–885 page(s): 845-847 [details]
From editor or global species database
Diagnosis Shell 1.3 to 1.8 mm high, with protoconch of 1.25 whorl and teleoconch of 2.75 to 3.0 whorls. Protoconch nearly smooth, teleoconch apparently smooth but microscopically with spiral rows of extremely minute (ca. 0.5 µm) pores aligned in the spiral direction, visible only at high magnification under the scanning electron microscope. Outer lip orthocline with a distinct inwards inflexion near the suture, with a thin edge, not thickened externally.. Shell white, translucent.
This species superficially resembles shallow water species of the genus Obtusella; however the latter have plain cords as spiral microsculpture and not the pitted pattern which supports the generic assignment. [details] Distribution Atlantis seamount, endemic, very common in 280-420 m [details] Type locality Atlantis seamount (34°04.8'N, 30°14.9'W, 330 m). [details] Type locality Atlantis seamount (34º04.8'N, 30º14.9'W, 330 m). [details]