词条 | Vertigo ronnebyensis |
释义 |
| image = Vertigo ronnebyensis shell.jpg | image_caption = Apertural view of a shell of Vertigo ronnebyensis | status = NE | status_system = | status_ref = [1] | regnum = Animalia | phylum = Mollusca | classis = Gastropoda | superfamilia = Pupilloidea | familia = Vertiginidae | subfamilia = Vertigininae | tribus = Vertiginini | genus = Vertigo | subgenus = Vertigo | species = V. ronnebyensis | binomial = Vertigo ronnebyensis | binomial_authority = (Westerlund, 1871)[2] }} Vertigo ronnebyensis is a species of minute air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Vertiginidae, the whorl snails. Shell descriptionThe shell is deeply perforate, long-ovate, regularly finely striate, very glossy and reddish-brown in color. The shell has 5½ convex whorls. The last whorl is about equal to the penult, which is a third higher than the preceding whorl, which is double the height of the next earlier. Last whorl has a transverse callus of the same color near the aperture. Suture is very oblique, ascending to the aperture.[3] Aperture is quite obliquely piriform, excised by the very oblique parietal wall. Aperture has 4 teeth: 1 parietal lamella, 1 conic tooth at the lower end of the sharply emerging, dark-colored columella; 2 short, widely separated, deeply immersed palatal folds. Margins are delicately united, the outer margin is weakly arcuate, nearly straight, the columellar margin is broadly reflected.[3] The width of the adult shell is 1.15-1.35 mm, the height is 2.0-2.35 mm.[3] DistributionThis species occurs in:
HabitatThis species lives in forests. ReferencesThis article incorporates public domain text from reference.[4] 1. ^IUCN 2007. 2007 IUCN Red List of Threatened Species. {{Taxonbar|from=Q3200199}}2. ^Westerlund C. A. 1871. Exposé critique des mollusques de terre et d'eau douce de la Suède et de la Norvége. pp. [1-2], 1-200. Upsal. (Berling). 3. ^Species summary for Vertigo ronnebyensis. AnimalBase, accessed 23 June 2009. 4. ^1 2 3 4 5 Pilsbry H. A. & Cooke C. M. 1918-1920. Manual of Conchology. Second series: Pulmonata. [https://archive.org/details/manualofconcholo25tryorich Volume 25]. Pupillidae (Gastrocoptinae, Vertigininae). Philadelphia. pages [https://archive.org/stream/manualofconcholo25tryorich#page/192/mode/2up 192]-193. 2 : Vertigo (gastropod)|Gastropods described in 1871 |
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