Portunus puber

9.9

A swimming crab with a velvety shell that lives on the coasts of western Europe and often bites or fights

noun

Specialized

: Portunus puber

The Portunus puber is easily identified by the velvety texture of its shell.

Examples

Marine biologists conducted a study on the habitat of Portunus puber along the Cornish coast.
Fishermen often encounter Portunus puber when setting traps near rocky shorelines.
The Portunus puber is commonly found in coastal waters.
Have you ever seen a Portunus puber up close?
Fishermen often encounter Portunus puber when setting traps near rocky shorelines.
Marine biologists conducted a study on the habitat of Portunus puber along the Cornish coast.
The Portunus puber is easily identified by the velvety texture of its shell.

Surface Forms

Portunus puber singular

Portunus pubers plural

Morphology

Portunus + puber

This is a Latin binomial: knowing 'Portunus' signals the genus of swimming crabs, so a learner who knows that word can infer it denotes a type of Portunus crab. However, 'puber' is not a common English word (and is effectively opaque or Latin to a B1 learner), so the species-specific sense (velvety shell, aggressive behaviour) cannot be derived from the constituents. Because the taxonomic relation is clear but the detailed meaning is not predictable, the item is partially transparent.

Etymology

Portunus puber may come from Latin roots: Portunus was the Roman god of harbors and the sea, and puber means 'downy' or 'covered in soft hairs', which fits the crab's velvety shell. So the name paints a clear picture of a small swimming crab with a soft, velvety shell, helping you remember this species.