| 词条 | Gudeodiscus messageri |
| 释义 |
| image = Gudeodiscus messageri raheemi.jpg | image_caption = Gudeodiscus messageri raheemi | regnum = Animalia | phylum = Mollusca | classis = Gastropoda | unranked_superfamilia = clade Heterobranchia clade Euthyneura clade Eupulmonata clade Stylommatophora informal group Sigmurethra | superfamilia = Plectopyloidea | familia = Plectopylidae | genus = Gudeodiscus | subgenus = Gudeodiscus | species = G. messageri | binomial = Gudeodiscus messageri | binomial_authority = (Gude, 1909)[1] | synonyms_ref = [2] | synonyms = Plectopylis messageri Gude, 1909 }} Gudeodiscus messageri is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Plectopylidae. SubspeciesGudeodiscus messageri include two subspecies:
DistributionThe distribution of Gudeodiscus messageri messageri is known from Vietnam along the Chinese border (Yunnan Province).[2] The distribution of Gudeodiscus messageri raheemi is known from Vietnam from Ninh Bình Province, Thanh Hóa Province, Sơn La Province, Hòa Bình Province and Nghệ An Province[2] and from Luang Prabang Province in north Laos and Vientiane Province in northwest Laos.[6] Gudeodiscus messageri raheemi in Laos is the westernmost record of the genus Gudeodiscus.[6] DescriptionThe shell of Gudeodiscus messageri is small to medium-sized, with slightly elevated spire.[2] The dorsal surface is somewhat domed.[2] The aperture is almost circular.[2] The apertural fold is missing.[2] Callus is rather blunt and only slightly curved.[2] Parietal wall has two lamellae (the anterior lamella may be dissolved into small denticles).[2] Lower parietal plica is free or connected to the anterior lamella.[2] Palatal plicae are oblique, or depressed Z-shaped, usually in contact with each other.[2] Gudeodiscus messageri messageriThe most important shell characters for identification of Gudeodiscus messageri messageri include: slightly elevated spire, callus is not angled in the middle, apertural fold is always missing.[2] Other characteristics include: anterior lamella is normal (it is not dissolved into small denticles).[2] Lower parietal plica does not extend beyond the anterior lamella in the anterior direction.[2] The width of the shell is 12.75–18.5 mm.[2] Views of the shell of Gudeodiscus messageri messageri by Gerard Pierre Laurent Kalshoven Gude: Gudeodiscus messageri raheemiThe most important shell characters for identification of Gudeodiscus messageri raheemi include: body whorl is less shouldered than that of the nominotypical subspecies, but plicae have to be observed for correct identification.[2] {{clear-left}}Views of the shell of Gudeodiscus messageri raheemi: The radula of Gudeodiscus messageri raheemi has 8 lateral teeth and 16 marginal teeth.[2] The size of the central tooth is as large as or larger than the ectocone of the first lateral.[2] The shape of the first lateral is rhomboid and pointed.[2] Marginal teeth are tricuspid with rather sharp inner cusp and deep incision between the cusps.[2] Embryos were recorded to be present in the uterus.[2] There were not recorded calcareous granules on the internal surface of penis.[2] EcologyIt is a ground-dwelling species as all other plectopylid snails in Vietnam.[2] It lives in primary forests and in old secondary broad-leaved forests.[6] It can be found in the humid microenvironments under leaves, logs, limestone rocks and in black soil accumulated inside limestone pockets.[6] It co-occur with other plectopylids in Vietnam: with Gudeodiscus phlyarius and with Gudeodiscus hemmeni.[2] It also co-occur with clausiliid Garnieria mouhoti, that is also associated with the moderate humidity of broad-leaved forests.[6] ReferencesThis article incorporates Creative Commons (CC-BY-4.0) text from the references[2][3] 1. ^Gude G. K. (1909). "Descriptions of six new species of Plectopylis from Tonkin". Proceedings of the Malacological Society of London 8(4): 213–218. [https://archive.org/stream/proceedingsofmal8190809malac#page/214/mode/2up pages 214]-215, [https://archive.org/stream/proceedingsofmal8190809malac#page/218/mode/2up plate 9], Figs 3, 3a–b. 2. ^1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Páll-Gergely B., Hunyadi A., Ablett J., Luong Van H., Naggs F. & Asami T. (2015). "Systematics of the family Plectopylidae in Vietnam with additional information on Chinese taxa (Gastropoda, Pulmonata, Stylommatophora)". ZooKeys 473: 1–118. {{doi|10.3897/zookeys.473.8659}}. 3. ^1 2 3 4 5 Páll-Gergely B., Muratov I. V. & Asami T. (2016). "The family Plectopylidae (Gastropoda, Pulmonata) in Laos with the description of two new genera and a new species". ZooKeys 592: 1-26. {{doi|10.3897/zookeys.592.8118}}. External links{{Taxonbar|from=Q28432413}} 2 : Plectopylidae|Gastropods described in 1909 |
| 随便看 |
|
开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。