Below is a compilation of the types I have, and others that can be found. I've borrowed better images from importers and others, until I take better pics myself. There is a bit of confusion between the 3 spotted species, white-, yellow-, and golden-spotted. I will try to clarify these more later.
Additional pictures and species can be found by clicking HERE.
Orange Poso - Tylomelania species orange poso - up to 4 - 5 inches
Yellow Poso - Tylomelania species yellow poso - up to 4 inches
White Spotted - Tylomelania patriarchalis (or towutica?) - ~4.5 inches length
Golden Spotted - Tylomelania towutensis (or patriarchalis ?) - ~3.3 inches length
Yellow Spotted - Tylomelania towutica (or towutensis ?) - up to 4 - 5 inches
Chocolate Poso - Tylomelania zeimis, or T. perfecta (?) - I was told 4 - 5 inches length
Yellow antenna - Tylomelania gemmifera - also has matching lips! Two variants, heavily spotted and almost black body (center image) - ~4.5 inches length
Black Sulawesi - ?
© 2013 - 2016 ~ RabbitSnails
A good friend follower has contacted me with solid information that this snail is also called "Thunderbolt Tylomelania" - Snails with Charm: Tylomelania" by Hans-Georg Evers, Amazonas magazine, Great Snails, Volume 2 Number 4, July/August 2013