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
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.
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