Staircase Snails - Family: Architectonicidae
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Reeve's Sundial - Adelphotectonica reevei
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Architectonica grandiosa
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Giant Sundial - Architectonica maxima (possible occurrence)
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Partridge Sundial - Architectonica perdix
Clear Sundial - Architectonica perspectiva
Discotectonica acutissima
Heliacus areola
Heliacus enoshimensis
Southern Sundial - Heliacus implexus
Heliacus infiundibiliformis
Heliacus ponderi
Heliacus stramineus
Heliacus trochoides
Variegated Sundial - Heliacus variegatus
Yellow Sundial - Philippia lutea
Pseudotorinia delectabilis
Pseudotorinia laseronorum
Psilaxis oxytropis
Hybrid Sundial - Psilaxis radiatus
Solatisonax injussa
Taxonomy:
Phylum: Mollusca (Molluscs)
> Class: Gastropoda (Gastropods)
> Subclass: Heterobranchia (Heterobranchs)
> Superfamily: Architectonicoidea (Volutes and Allies)
> Family: Architectonicidae (Staircase Shells)
> Genus: Adelphotectonica
> Species: A. reevei - Reeve's Sundial
> Genus: Architectonica
> Species: A. grandiosa
> Species: A. maxima - Giant Sundial ^
> Species: A. perdix - Partridge Sundial
> Species: A. perspectiva - Clear Sundial
> Genus: Discotectonica
> Species: D. acutissima
> Genus: Heliacus
> Species: H. areola
> Species: H. enoshimensis
> Species: H. implexus - Southern Sundial
> Species: H. infundibiliformis
> Species: H. ponderi
> Species: H. stramineus
> Species: H. trochoides
> Species: H. variegatus - Variegated Sundial
> Genus: Philippia
> Species: P. lutea - Yellow Sundial
> Genus: Pseudotorinia
> Species: P. delectabilis
> Species: P. laseronorum
> Genus: Psilaxis
> Species: P. oxytropis
> Species: P. radiatus - Hybrid Sundial
> Genus: Solatisonax
> Species: S. injussa
^ = possibly
* = likely
References and links:
Photographic contributions: