| Penion cuvierianus Temporal range: Early Pliocene to Recent, | |
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| Dorsal view of a shell of Penion cuvierianus | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Caenogastropoda |
| Order: | Neogastropoda |
| Family: | Austrosiphonidae |
| Genus: | Penion |
| Species: | P. cuvierianus |
| Binomial name | |
| Penion cuvierianus (Powell, 1927) | |
| Synonyms | |
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Penion cuvierianus is a species of very large predatory sea snail or whelk, commonly called the flaring penion, a marine gastropod mollusc in the family Austrosiphonidae. [1]
Penion cuvierianus is a very large species of siphon whelk. [2] [3] Shells vary between ivory and yellow in colouration. [3]
Recent genetic and geometric morphometric research using shell shape and size has demonstrated that a formerly recognised subspecies Penion cuvierianus jeakingsi is closely related to Penion ormesi , instead of Penion curierianus, and the taxon has been synonymised with P. ormesi. [4]
Penion cuvierianus is endemic to New Zealand. [2] [3] The taxonomic name is a reference to the type locality of Cuvier Island. [2] The species has an abundant fossil record in the North Island of New Zealand. [5]
The species occurs in the subtidal zone between depths of 20 and 200 metres. [3]
These subspecies have been recognised: