Phylum Mollusca 軟體動物門

Class Gastropods 腹足綱

Family Camaenidae 南亞蝸牛科

Scientific name Amphidromus glaucolarynx fasciata

Chinese name

Author von Martens, 1867

Size 23.63mm

Description 23.63x13.69mm, collected from limestone area at Hua Wua Cave, Kaengkrajan District, Petschaburi Province, Western Thailand. Thailand.

Amphidromus glaucolarynx (Dohrn, 1861) characterize by its violet-purple aperture, slender shape, and broad vertical purple-brown streaks. The variety fasciatus von Martens, 1867, from Petschaburi, Thailand, has a squatter shape and broader and less distinct color streaks than the nominate form.

 

More detail photo, please click the following PICTURE.

 

Amphidromus glaucolarynx fasciatus 23.63mm

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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 metabletus pachycheilus f. fusca

Chinese name

Author von Möllendorff, 1901

Size 34.6mm

Description Juvenile, Nha Trang, Vietnam.

Subsp. Pachychilus is stronger-shelled throughout, thicker lipped, parietal callus stronger ; suture more distinctly margined; base less wide than Amphidromus metabletus.

The individual variations are even more numerous than in the type, the following " forms " being distinguishable :

A (flava), uniform yellow. (for nomenclatural purposes equivalent to pachycheilus).

B (alba), uniform white.

C (tritaeniata), yellow with 3 brown bands, the middle one sometimes lost.

D (trizona), white with 3 bands.

E (interrupta), like D, but the bands interrupted and reduced to rows of spots.

F (confluens), like D, but the bands more or less widened and confluent.

G (fusca), uniform brown by widening and union of the bands, except for a white sutural line.

 

More detail photo, please click the following PICTURE.

 

Amphidromus metabletus pachycheilus f. fusca 34.6mm

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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 metabletus pachycheilus f. flavus

Chinese name

Author von Möllendorff, 1901

Size 36.3 & 39.6mm

Description Nha Trang, Vietnam.

Subsp. Pachychilus is stronger-shelled throughout, thicker lipped, parietal callus stronger ; suture more distinctly margined; base less wide than Amphidromus metabletus.

The individual variations are even more numerous than in the type, the following " forms " being distinguishable :

A (flava), uniform yellow. (for nomenclatural purposes equivalent to pachycheilus).

B (alba), uniform white.

C (tritaeniata), yellow with 3 brown bands, the middle one sometimes lost.

D (trizona), white with 3 bands.

E (interrupta), like D, but the bands interrupted and reduced to rows of spots.

F (confluens), like D, but the bands more or less widened and confluent.

G (fusca), uniform brown by widening and union of the bands, except for a white sutural line.

 

More detail photo, please click the following LINK PICTURE.

 

Amphidromus metabletus pachycheilus f. flava 36.3 & 39.6mm

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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 metabletus pachycheilus f. flavus

Chinese name

Author von Möllendorff, 1901

Size 39.6mm

Description Nha Trang, Vietnam.

Subsp. Pachychilus is stronger-shelled throughout, thicker lipped, parietal callus stronger ; suture more distinctly margined; base less wide than Amphidromus metabletus.

The individual variations are even more numerous than in the type, the following " forms " being distinguishable :

A (flava), uniform yellow. (for nomenclatural purposes equivalent to pachycheilus).

B (alba), uniform white.

C (tritaeniata), yellow with 3 brown bands, the middle one sometimes lost.

D (trizona), white with 3 bands.

E (interrupta), like D, but the bands interrupted and reduced to rows of spots.

F (confluens), like D, but the bands more or less widened and confluent.

G (fusca), uniform brown by widening and union of the bands, except for a white sutural line.

 

More detail photo, please click the following PICTURE.

 

http://leechitse66.blogspot.tw/2016/04/amphidromus-metabletus-pachycheilus-f_6.html

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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 metabletus pachycheilus f. flavus

Chinese name

Author von Möllendorff, 1901

Size 36.3mm

Description Nha Trang, Vietnam.

Subsp. Pachychilus is stronger-shelled throughout, thicker lipped, parietal callus stronger ; suture more distinctly margined; base less wide than Amphidromus metabletus.

The individual variations are even more numerous than in the type, the following " forms " being distinguishable :

A (flava), uniform yellow. (for nomenclatural purposes equivalent to pachycheilus).

B (alba), uniform white.

C (tritaeniata), yellow with 3 brown bands, the middle one sometimes lost.

D (trizona), white with 3 bands.

E (interrupta), like D, but the bands interrupted and reduced to rows of spots.

F (confluens), like D, but the bands more or less widened and confluent.

G (fusca), uniform brown by widening and union of the bands, except for a white sutural line.

 

More detail photo, please click the following PICTURE.

 

Amphidromus metabletus pachycheilus f. flava 36.3mm

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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 metabletus pachycheilus f. alba

Chinese name

Author von Möllendorff, 1901

Size 42.4mm

Description Specimen taken from Nha Trang, Vietnam.

Subsp. Pachychilus is stronger-shelled throughout, thicker lipped, parietal callus stronger ; suture more distinctly margined; base less wide than Amphidromus metabletus.

The individual variations are even more numerous than in the type, the following " forms " being distinguishable :

A (flava), uniform yellow. (for nomenclatural purposes equivalent to pachycheilus).

B (alba), uniform white.

C (tritaeniata), yellow with 3 brown bands, the middle one sometimes lost.

D (trizona), white with 3 bands.

E (interrupta), like D, but the bands interrupted and reduced to rows of spots.

F (confluens), like D, but the bands more or less widened and confluent.

G (fusca), uniform brown by widening and union of the bands, except for a white sutural line.

 

More detail photo, please click the following LINK PICTURE.

 

Amphidromus metabletus pachycheilus f. alba 42.4mm

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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 atricallosus temasek

Chinese name

Author Tan, Chan & Panha, 2011

Size 42.7 & 45.2mm

Description Thick mature lip and very deep intense yellow colour. Upper Pierce Reservior Nature Reserve, Singapore. 16th October, 2015.

Diagnostic featureThe thin white subsutural line and simple and straight columella that is never twisted is diagnostic.

Reference materials (參考資料)

A NEW SUBSPECIES OF AMPHIDROMUS (AMPHIDROMUS) ATRICALLOSUS FROM SINGAPORE

 

More detail photo, please click the following PICTURE.

 

Amphidromus atricallosus temasek 42.7 & 45.2mm

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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 atricallosus temasek

Chinese name

Author Tan, Chan & Panha, 2011

Size 45.2mm

Description Thick mature lip and very deep intense yellow colour. Upper Pierce Reservior Nature Reserve, Singapore. 16th October, 2015.

Diagnostic featureThe thin white subsutural line and simple and straight columella that is never twisted is diagnostic.

Reference materials (參考資料)

A NEW SUBSPECIES OF AMPHIDROMUS (AMPHIDROMUS) ATRICALLOSUS FROM SINGAPORE

 

More detail photo, please click the following PICTURE.

 

Amphidromus atricallosus temasek 45.2mm

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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 atricallosus temasek

Chinese name

Author Tan, Chan & Panha, 2011

Size 42.7mm

Description Thick mature lip and very deep intense yellow colour. Upper Pierce Reservior Nature Reserve, Singapore. 16th October, 2015.

Diagnostic featureThe thin white subsutural line and simple and straight columella that is never twisted is diagnostic.

Reference materials (參考資料)

A NEW SUBSPECIES OF AMPHIDROMUS (AMPHIDROMUS) ATRICALLOSUS FROM SINGAPORE

 

More detail photo, please click the following PICTURE.

 

Amphidromus atricallosus temasek 42.7mm 00

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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 smithii

Chinese name

Author Fulton, 1896

Size 37.98mm

Description Daklak province, Vietnam. August, 2015.

 

More detail photo, please click the following picture.

 

Amphidromus smithii 37.98mm

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