| 词条 | Acteocina infrequens |
| 释义 |
| name = | image = | image_caption = | regnum = Animalia | phylum = Mollusca | classis = Gastropoda | unranked_superfamilia = clade Heterobranchia clade Euthyneura clade Euopisthobranchia clade Cephalaspidea | superfamilia = Bulloidea | familia = Acteocinidae | genus = Acteocina | species = A. infrequens | binomial = Acteocina infrequens | binomial_authority = (C. B. Adams, 1852) | synonyms_ref= | synonyms=
}}Acteocina infrequens, common name the Magdalena barrel bubble, is a species of small sea snail, a marine opisthobranch gastropod mollusk in the family Acteocinidae, the barrel bubble snails.[1] DescriptionThe length of the shell attains 6.7 mm, its diameter 2.5 mm. The small, slender shell has a subcylindric shape. It is translucent white and is polished. The shell contains four whorls. The protoconch is minute, subglobular and transparent. The suture is distinct, more or less channeled. The spire is short but distinctly turreted. The aperture is narrow. The outer lip is straight, rounding below into the thickened columella which has a strong plait with a groove behind it. The body has a slight glaze. [2] DistributionThis marine species occurs in Magdalena Bay, Lower California; off Baja California to Pacific Panama. External links
References1. ^Bouchet, P.; Rosenberg, G. (2016). Acteocina infrequens (C. B. Adams, 1852). In: MolluscaBase (2016). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=575019 on 2016-07-12 2. ^[https://www.biodiversitylibrary.org/page/7766313#page/355/mode/1up United States National Museum, and William Healey Dall. Descriptions of new species of Mollusca from the North Pacific Ocean in the collection of the United States National Museum. 1919] (described as Acteocina magdalenensis)
4 : Rubiaceae genera|Acteocinidae|Gastropods described in 1852|Molluscs of Mexico |
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