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Tandonia budapestensis
''Tandonia budapestensis'' is a species of air-breathing, keeled, land slug, a shell-less terrestrial gastropod mollusks in the family Milacidae. 〔 Marshall, B. (2014). Tandonia budapestensis (Hazay, 1880). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=819995 on 2014-11-06 〕
==Description==
This slug is basically dark brownish grey, with a keel of a brighter color. The body is yellowish-grey to brown or dark grey, with numerous black spots, so that the slug may appear to be evenly black-brown, slightly lighter at the sides. The animal is very slender, gradually narrowing posteriorly. The mantle length is less than 1/3 of the body length. There are blurry black bands on the sides of the mantle. The keel is prominent, light, and reaches the mantle. The head and neck are blackish.The sole is narrow and cream with brown or orange hue. The body mucus is usually colourless, thick and sticky but it is yellowish when the slug is irritated.〔
The length is up to 70 mm.〔 The length of a preserved specimen is 30–40 mm.〔
Reproductive system: The penis is rounded, wider than and approximately as long as the epiphallus. The vas deferens opening is clearly asymmetrically at the posterior end of epiphallus. Therer is a small simple papilla inside the penis. The spermatheca duct is usually thick; the vagina and atrium are short, the vagina accessory glands are two lobe-like objects connected to the vagina by thin ducts.〔 The spermatophore is thin, 16 mm long, covered almost entirely with short spines.〔
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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