目前分類:Gastropods 腹足綱 (515)

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Phylum Mollusca 軟體動物門

Class Gastropods 腹足綱

Family Camaenidae 南亞蝸牛科

Scientific name Amphidromus rottiensis

Chinese name

Author (Chan, Siong & Abbas, 2008)

Size 25.86,  29.03,  29.54mm

Description Specimen from Rotti Island, West of West Timor Island. Indonesia. March, 2015.

Reference materials (參考資料)

http://lkcnhm.nus.edu.sg/rbz/biblio/58/58rbz245-249.pdf

https://molluscan.com/omp/2008omp1-5.pdf

 

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Amphidromus rottiensis 25.86 to 29.54mm

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Phylum Mollusca 軟體動物門

Class Gastropods 腹足綱

Family Camaenidae 南亞蝸牛科

Scientific name Amphidromus rottiensis

Chinese name

Author (Chan, Siong & Abbas, 2008)

Size 29.54mm

Description Specimen from Rotti Island, West of West Timor Island. Indonesia. March, 2015.

 

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Amphidromus rottiensis 29.54mm

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Phylum Mollusca 軟體動物門

Class Gastropods 腹足綱

Family Camaenidae 南亞蝸牛科

Scientific name Amphidromus rottiensis

Chinese name

Author (Chan, Siong & Abbas, 2008)

Size 29.03mm

Description Specimen from Rotti Island, West of West Timor Island. Indonesia. March, 2015.

 

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Amphidromus rottiensis 29.03mm

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Phylum Mollusca 軟體動物門

Class Gastropods 腹足綱

Family Camaenidae 南亞蝸牛科

Scientific name Amphidromus sekincauensis

Chinese name

Author Dharma, 2007

Size 39.05,  41.0343.5844.90 mm

Description Specimen found on coffee leaves in coffee plantation’s, at altitude 1080 meters of Mount. Sincau, North Lampung, South Sumatra, Indonesia. May, 2015.

 

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Amphidromus sekincauensis 39.05 to 44.90mm

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Phylum Mollusca 軟體動物門

Class Gastropods 腹足綱

Family Camaenidae 南亞蝸牛科

Scientific name Amphidromus sekincauensis

Chinese name

Author Dharma, 2007

Size 43.58mm

Description Specimen found on coffee leaves in coffee plantation’s, at altitude 1080 meters of Mount. Sincau, North Lampung, South Sumatra, Indonesia. May, 2015.

 

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Amphidromus sekincauensis 43.58mm

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Phylum Mollusca 軟體動物門

Class Gastropods 腹足綱

Family Camaenidae 南亞蝸牛科

Scientific name Amphidromus sekincauensis

Chinese name

Author Dharma, 2007

Size 39.05mm

Description Specimen found on coffee leaves in coffee plantation’s, at altitude 1080 meters of Mount. Sincau, North Lampung, South Sumatra, Indonesia. May, 2015.

 

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Amphidromus sekincauensis 39.05mm

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Phylum Mollusca 軟體動物門

Class Gastropods 腹足綱

Family Camaenidae 南亞蝸牛科

Scientific name Amphidromus stevenliei

Chinese name

Author Jeff Parsons, 2016

Size 35.75mm

Description Specimen found from Mt. Sarempakang, South East Kalimantan, Indonesia. January, 2015

 

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Amphidromus stevenliei 35.75mm

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Phylum Mollusca 軟體動物門

Class Gastropods 腹足綱

Family Camaenidae 南亞蝸牛科

Scientific name Amphidromus inconstans gracilis

Chinese name

Author von Martens, 1899

Size 33.4933.8334.15 mm

Description Alor Island. off East Flores island, Indonesia. March, 2015.

 

Amphidromus inconstans variety gracilis von Martens, 1899 (not Fulton, 1896), was proposed for shells with only a peripheral color band, and was extended by Pilsbry (1900, p. 210) to cover the pure yellow shells from Alor.

 

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Amphidromus inconstans gracilis 33.49 to 34.15mm

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Phylum Mollusca 軟體動物門

Class Gastropods 腹足綱

Family Camaenidae 南亞蝸牛科

Scientific name Amphidromus inconstans gracilis

Chinese name

Author von Martens, 1899

Size 33.49mm

Description Alor Island. off East Flores island, Indonesia. March, 2015.

 

Amphidromus inconstans variety gracilis von Martens, 1899 (not Fulton, 1896), was proposed for shells with only a peripheral color band, and was extended by Pilsbry (1900, p. 210) to cover the pure yellow shells from Alor.

 

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Amphidromus inconstans gracilis 33.49mm

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Phylum Mollusca 軟體動物門

Class Gastropods 腹足綱

Family Camaenidae 南亞蝸牛科

Scientific name Amphidromus inconstans

Chinese name

Author (Fulton,1898)

Size 28.35,  29.34,  29.66,  30.17,  31.14,  31.27,  31.97,  32.66 mm

Description Alor Island, Island off East Flores. Indonesia. March. 2014.

 

A relatively small (29-38 mm. high) shell with white or brown apex and with the early whorls quite variable in coloring. The basic inconstans pattern has four spiral brown bands on the last whorl, the upper two of square chestnut-colored spots, the lower two either continuous or also interrupted into spots.

It differs from contrarius in lacking the callus nodule; from laevus in having brown, not orange, bands (when bands are present); and from reflexilabris in having a simple lip.

 

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Amphidromus inconstans 28.35 to 32.66mm

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Phylum Mollusca 軟體動物門

Class Gastropods 腹足綱

Family Camaenidae 南亞蝸牛科

Scientific name Amphidromus beccarii

Chinese name

Author Tapparone-Canefri, 1883

Size 44.02mm

Description Specimen found on pineapple plantation’s. South East Sulawesi, East Indonesia. April 2015.

 

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Amphidromus beccarii 44.02mm

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Phylum Mollusca 軟體動物門

Class Gastropods 腹足綱

Family Camaenidae 南亞蝸牛科

Scientific name Amphidromus semifrenatus

Chinese name

Author von Martens, 1900

Size 25.228.3928.8,  30.11 mm

Description Solid color form, Aceh. North Sumatra. Indonesia.

The color pattern shows affinities to both porcellanus and sumatranus, but A. semifrenatus differs by having a narrow black or brown band that winds around the insertion of the columella and is continued into the aperture above the columellar insertion. Several color varieties have been described but not named, and many shells cannot be fitted into any of the listed variations. Specimens from Atjeh, Sumatra (CNHM 72388), have prominent flames on the upper whorls that disappear below. (Laidlaw & Solem 1961)

Reference materials (參考資料)

Amphidromus semifrenatus von Martens, 1900, Nachr, Malak. Gesell., 32: 8-9—Deli, North Sumatra;

Pilsbry, 1900, Man. Conch., (2), 13: 219-220;

Vernhout, 1913 (part). Notes Leyden Mus., 35: 164-155, figs. 1-2;

 

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Amphidromus semifrenatus 25.2 to 30.11mm

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Phylum Mollusca 軟體動物門

Class Gastropods 腹足綱

Family Camaenidae 南亞蝸牛科

Scientific name Amphidromus semifrenatus

Chinese name

Author von Martens, 1900

Size 28.8mm

Description Solid color form, Aceh. North Sumatra. Indonesia.

The color pattern shows affinities to both porcellanus and sumatranus, but A. semifrenatus differs by having a narrow black or brown band that winds around the insertion of the columella and is continued into the aperture above the columellar insertion. Several color varieties have been described but not named, and many shells cannot be fitted into any of the listed variations. Specimens from Atjeh, Sumatra (CNHM 72388), have prominent flames on the upper whorls that disappear below. (Laidlaw & Solem 1961)

Reference materials (參考資料)

Amphidromus semifrenatus von Martens, 1900, Nachr, Malak. Gesell., 32: 8-9—Deli, North Sumatra;

Pilsbry, 1900, Man. Conch., (2), 13: 219-220;

Vernhout, 1913 (part). Notes Leyden Mus., 35: 164-155, figs. 1-2;

 

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Amphidromus semifrenatus 28.8mm

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Phylum Mollusca 軟體動物門

Class Gastropods 腹足綱

Family Camaenidae 南亞蝸牛科

Scientific name Amphidromus semifrenatus

Chinese name

Author von Martens, 1900

Size 25.2mm

Description Solid color form, Aceh. North Sumatra. Indonesia.

The color pattern shows affinities to both porcellanus and sumatranus, but A. semifrenatus differs by having a narrow black or brown band that winds around the insertion of the columella and is continued into the aperture above the columellar insertion. Several color varieties have been described but not named, and many shells cannot be fitted into any of the listed variations. Specimens from Atjeh, Sumatra (CNHM 72388), have prominent flames on the upper whorls that disappear below. (Laidlaw & Solem 1961)

Reference materials (參考資料)

Amphidromus semifrenatus von Martens, 1900, Nachr, Malak. Gesell., 32: 8-9—Deli, North Sumatra;

Pilsbry, 1900, Man. Conch., (2), 13: 219-220;

Vernhout, 1913 (part). Notes Leyden Mus., 35: 164-155, figs. 1-2;

 

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Amphidromus semifrenatus 25.2mm

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Phylum Mollusca 軟體動物門

Class Gastropods 腹足綱

Family Camaenidae 南亞蝸牛科

Scientific name Amphidromus ilsa

Chinese name

Author Rensch, 1933

Size 28.23mm

Description Taken from short plants, on leaves, in forest. Weh Island, off the coast of Aceh, North Sumatra Island. Indonesia. August, 2015.

 

Reference materials (參考資料)

Amphidromus ilsa Rensch, 1933, Zool. Anz., 102: 206, fig. 11—woods at Sabang, Pulau Weh, Sumatra;

van Benthem Jutting, 1959, Beaufortia, 7, (83), p. 183.

 

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Amphidromus ilsa 28.23mm

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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.

 

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Amphidromus porcellanus 23.89 %26; 30.24mm

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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 21.61mm

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.

 

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Amphidromus porcellanus 30.24mm

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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.

 

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Amphidromus latestrigatus 38.38mm

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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.

 

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Amphidromus perversus perversus 39.52 to 47.42mm

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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 40.48mm

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.

 

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Amphidromus perversus perversus 40.48mm

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