Sinezona brevis (Hedley 1904)

Sinezona brevis ye una especie de moluscu gasterópodu de la familia Scissurellidae.

Distribución xeográfica

Alcuéntrase en Nueva Zelanda.

Referencies

• (n'Inglés) Arthur William Baden Powell, New Zealand Mollusca, William Collins Publishers Ltd, Auckland, New Zealand 1979 ISBN 0-00-216906-1

Enllaces esternos

• Sinezona brevis

Sinezona brevis is a species of minute sea snail, a marine gastropod mollusc in the family Scissurellidae.^[1]

Description

The white shell reaches a height of 1 mm. The solid shell has a depressed, turbinate shape. It is openly perforate to imperforate. The sculpture shows distant longitudinal lamellate ribs that cross the whorl from the suture to the umbilicus. Their interstices contain raised spiral threads, which grow coarser on approaching the umbilicus. The protoconch contains 1½ whorl, concluding with a prominent varix. The three whorls are tabulate above, and rounded below. The body whorl descends rapidly. The aperture is roundly ovate. The sharp outer lip is convex. The inner lip spreads as a distinct callosity over the body, and sometimes seals the umbilicus partly or wholly up. The columella is concave. The narrow umbilicus is deep, and is bordered with a raised ridge, or is closed up. The foramen is large, and distant from the margin, to which a furrow joins it. The fasciole is extremity short, terminating half a whorl behind the aperture. it is bordered by keels and is traversed by lamellae, which correspond to the longitudinal ribs.^[2]

Distribution

This marine species occurs off New Zealand.

References

• Powell A. W. B., New Zealand Mollusca, William Collins Publishers Ltd, Auckland, New Zealand 1979 ISBN 0-00-216906-1
• Marshall,B. A., 2002. Some recent scissurellids from the New Zealand region and remarks on some scissurellid genus group names (Mollusca:Gastropoda:Vestigastropoda). Molluscan Research 22:165-181
• Geiger D.L. (2012) Monograph of the little slit shells. Volume 1. Introduction, Scissurellidae. pp. 1-728. Volume 2. Anatomidae, Larocheidae, Depressizonidae, Sutilizonidae, Temnocinclidae. pp. 729–1291. Santa Barbara Museum of Natural History Monographs Number 7

Sinezona brevis es una especie de molusco gasterópodo de la familia Scissurellidae.

Distribución geográfica

Se encuentra en Nueva Zelanda

Referencias

• (en Inglés) Arthur William Baden Powell, New Zealand Mollusca, William Collins Publishers Ltd, Auckland, New Zealand 1979 ISBN 0-00-216906-1

Sinezona brevis is een slakkensoort uit de familie van de Scissurellidae.^[1] De wetenschappelijke naam van de soort is voor het eerst geldig gepubliceerd in 1904 door Hedley.

Sinezona brevis là một loài ốc biển nhỏ, là động vật thân mềm chân bụng sống ở biển trong họ Scissurellidae.

Chú thích

Tham khảo

• Powell A. W. B., New Zealand Mollusca, William Collins Publishers Ltd, Auckland, New Zealand 1979 ISBN 0-00-216906-1

Liên kết ngoài

• Sinezona brevis