Flat shell variation with 10 segments
Molluscs | Tomoko Fuse |  Spiral Origami Art Design by Tomoko Fuse
| 74 | Square | |
Flat shell with 10 segments
Molluscs | Tomoko Fuse | Spiral Origami Art Design by Tomoko Fuse
| 71 | Square | |
Flat shell with 11 segments
Molluscs | Tomoko Fuse | Spiral Origami Art Design by Tomoko Fuse
| 73 | Square | |
Flat shell with 12 segments
Molluscs | Tomoko Fuse | Spiral Origami Art Design by Tomoko Fuse
| 75 | Square | |
Flat shell with 14 segments
Molluscs | Tomoko Fuse | Spiral Origami Art Design by Tomoko Fuse
| 85 | Square | |
Flat shell with 17 segments
Molluscs | Tomoko Fuse | Spiral Origami Art Design by Tomoko Fuse
| 81 | Square | |
Layered shell
Molluscs | Tomoko Fuse |  Let's Fold Spirals by Tomoko Fuse
| 54 | Square
4 units | |
Modular shell 1
Molluscs | Tomoko Fuse | Let's Fold Spirals by Tomoko Fuse
| 48 | Square
4 units | |
Modular shell 2
Molluscs | Tomoko Fuse | Let's Fold Spirals by Tomoko Fuse
| 51 | Square
4 units | |
Modular spiral shell
Molluscs | Tomoko Fuse | Spiral Origami Art Design by Tomoko Fuse
| 139 | Square
4 units | |
Modular spiral shell - long version
Molluscs | Tomoko Fuse | Spiral Origami Art Design by Tomoko Fuse
| 143 | Square
4 units | |
Nautilus shell (2 variations)
Molluscs | Tomoko Fuse | Let's Fold Spirals by Tomoko Fuse
| 14 | Square | |
Navel shell
Molluscs | Tomoko Fuse | Spiral Origami Art Design by Tomoko Fuse
| 107 | Square | 
Folded by Pascal Durrens |
Navel shell variation
Molluscs | Tomoko Fuse | Spiral Origami Art Design by Tomoko Fuse
| 110 | Other shape | |
Screw shell
Molluscs | Tomoko Fuse | Spiral Origami Art Design by Tomoko Fuse
| 125 | Other shape
with variations | |
Screw shell
Molluscs | Tomoko Fuse | Spiral Origami Art Design by Tomoko Fuse
| 119 | Square | |
Shell - spiral - 1 opening
Molluscs | Toshikazu Kawasaki | Let's Fold Spirals by Tomoko Fuse
| 46 | Square | 
Folded by Ondrej and Radim Cibulka |
Shell 1
Molluscs | Tomoko Fuse | Let's Fold Spirals by Tomoko Fuse
| 6 | Square | |
Shell 2
Molluscs | Tomoko Fuse | Let's Fold Spirals by Tomoko Fuse
| 9 | Square | |
Solid shell with 12 segments
Molluscs | Tomoko Fuse | Spiral Origami Art Design by Tomoko Fuse
| 76 | Square | |
Spiral shell
Molluscs | Tomoko Fuse |  AEP convention 2003 | 435 | Square
Several variations | |
Spiral shell
Molluscs | Tomoko Fuse | Let's Fold Spirals by Tomoko Fuse
| 20 | Square | |
Spiral shell
Molluscs | Tomoko Fuse |  Origami Spirals by Tomoko Fuse
| 36 | Square | |
Spiral shell
Molluscs | Tomoko Fuse |  Tanteidan 3rd convention (read full review) | 32 | Square | |
Spiral shell 1
Molluscs | Tomoko Fuse | Origami Spirals by Tomoko Fuse
| 42 | Square | |
Spiral shell 2
Molluscs | Tomoko Fuse | Origami Spirals by Tomoko Fuse
| 46 | Square | |
Spiral shell 3
Molluscs | Tomoko Fuse | Origami Spirals by Tomoko Fuse
| 49 | Square | |
Spiral shell 4
Molluscs | Tomoko Fuse | Origami Spirals by Tomoko Fuse
| 51 | Square | |
Weathered shell
Molluscs | Tomoko Fuse | Spiral Origami Art Design by Tomoko Fuse
| 147 | Square
4 units | |
