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.

 

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