| Magnapinna sp. B | |
|---|---|
| |
| Specimen of Magnapinna sp. B (95-millimetre or 3.7-inch ML) | |
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Cephalopoda |
| Order: | Oegopsida |
| Family: | Magnapinnidae |
| Genus: | Magnapinna |
| Species: | M. sp. B
|
| Binomial name | |
| Magnapinna sp. B | |
Magnapinna sp. B is an undescribed species of bigfin squid known only from a single immature specimen collected in the northern Atlantic Ocean.