Amphidromus quadrasi Hidalgo, 1887

    Amphidromus quadrasi Hidalgo, 1887, and it's forms live on Palawan and Balabac island in the Philippines and their satellite islands. There are many isolated colonies and each has it's own makeup of forms and sometimes unique color patterns.

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Amphidromus quadrasi quadrasi Hidalgo, 1887

Amphidromus quadrasi aborlanensis Bartsch, 1946

Amphidromus quadrasi dubius Fulton, 1896

Amphidromus quadrasi everetti Hidalgo, 1896

Amphidromus quadrasi palawanensis Bartsch, 1917

Amphidromus quadrasi solidus Fulton, 1896

Amphidromus quadrasi versicolor Fulton, 1896