2016年4月29日 星期五

Amphidromus porcellanus 23.89 & 30.24mm

Phylum Mollusca 軟體動物門
Class Gastropods 腹足綱
Family Camaenidae 南亞蝸牛科
Scientific name Amphidromus porcellanus
Chinese name
Author Mousson, 1848
Size 23.89 & 30.24 mm
Description Specimen found on altitude 325 meters high, Lampung, South Sumatra, Indonesia. March, 2014.

The shell is ornamented with relatively narrow radial flames which are usually interrupted by a clear spiral peripheral zone. The base has spiral dark bands and the subsutural zone is white or yellow.

Amphidromus porcellanus 23.89 & 30.24mm



2016年4月28日 星期四

Amphidromus porcellanus 30.24mm

Phylum Mollusca 軟體動物門
Class Gastropods 腹足綱
Family Camaenidae 南亞蝸牛科
Scientific name Amphidromus porcellanus
Chinese name
Author Mousson, 1848
Size 30.24mm
Description Specimen found on altitude 325 meters high, Lampung, South Sumatra, Indonesia. March, 2014.

The shell is ornamented with relatively narrow radial flames which are usually interrupted by a clear spiral peripheral zone. The base has spiral dark bands and the subsutural zone is white or yellow.

Amphidromus porcellanus 30.24mm
























2016年4月26日 星期二

Amphidromus latestrigatus 38.38mm

Phylum Mollusca 軟體動物門
Class Gastropods 腹足綱
Family Camaenidae 南亞蝸牛科
Scientific name Amphidromus latestrigatus
Chinese name
Author Schepman, 1892
Size 38.38mm
Description (Brown form), Found on short trees and assorted bushes from Central Sumba Island, Eastern Indonesia. February, 2015.

Many color variations, 3 of this species have been named. Typically they are rather easily separable, but enough intergrading individuals have been found to show that they are variants of one species.
Typical latestrigatus has broad radial flame-like markings and a roseate aperture (Sumba).
Variety sumbaensis Fulton, 1896, usually has the flame markings partially forked above and very irregular and obscured on the lower whorls. Often it is very difficult to separate sumbaensis and latestrigatus.

Variety consobrinus Fulton, 1897, from south Flores, has the color pattern reduced to one or two spiral bands on later whorls, with the lip and apical patches red. All forms have been found on Sumba, but only consobrinus on Flores.

Amphidromus latestrigatus 38.38mm






















2016年4月25日 星期一

Amphidromus perversus perversus 39.52 to 47.42mm

Phylum Mollusca 軟體動物門
Class Gastropods 腹足綱
Family Camaenidae 南亞蝸牛科
Scientific name Amphidromus perversus perversus
Chinese name
Author (Linnaeus, 1758)
Size 39.2140.48,  46.4047.42 mm
Description South West Sulawesi Island, Indonesia. July, 2015.  This is the Original/First Amphironus perversus described by Linnaeus. Refer to Pilsbry

The nominate race is a solid yellow shell with black varix and narrow black band behind the peristome and a highly variable polytypic species. It is known from the whole range of the species.

Amphidromus perversus perversus 39.52 to 47.42mm