''Buccinulum pertinax'' is a

species In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate s ...

marine Marine is an adjective meaning of or pertaining to the sea or ocean. Marine or marines may refer to: Ocean * Maritime (disambiguation) * Marine art * Marine biology * Marine debris * Marine habitats * Marine life * Marine pollution Military * ...

gastropod The gastropods (), commonly known as snails and slugs, belong to a large taxonomic class of invertebrates within the phylum Mollusca called Gastropoda (). This class comprises snails and slugs from saltwater, from freshwater, and from land. T ...

mollusc Mollusca is the second-largest phylum of invertebrate animals after the Arthropoda, the members of which are known as molluscs or mollusks (). Around 85,000 extant species of molluscs are recognized. The number of fossil species is esti ...

in the family

Tudiclidae The Tudiclidae are taxonomic family in the superfamily Buccinoidea of large sea snails, often known as whelks and the like.MolluscaBase eds. (2023). MolluscaBase. Tudiclidae Cossmann, 1901. Accessed through: World Register of Marine Species at ...

. It was first described by Eduard von Martens in 1878. It is endemic to the waters of New Zealand.

Description

''Buccinulum pertinax'' is a tall spired carnivore. The species measures 55 millimetres by 25 millimetres. The subspecies ''Buccinulum pertinax finlayi'' is distinguished by having heavier spiral cords.

Subspecies

''Buccinulum pertinax'' has two subspecies, ''Buccinulum pertinax pertinax'' based on von Martens' original description, and ''Buccinulum pertinax finlayi'', which was identified as a subspecies by

Baden Powell Baden-Powell () is a surname. Notable people with the surname include: Baden-Powell * The Rev. Prof. Baden Powell (mathematician) (1796–1860), mathematician, clergyman and liberal theologian. By his first marriage father of: :* Baden Henry Powell ...

in 1929.

Distribution

The species is

endemic Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsew ...

New Zealand New Zealand ( mi, Aotearoa ) is an island country in the southwestern Pacific Ocean. It consists of two main landmasses—the North Island () and the South Island ()—and over 700 smaller islands. It is the sixth-largest island count ...

. ''Buccinulum pertinax pertinax'' is found in the southern islands of New Zealand, including

Stewart Island Stewart Island ( mi, Rakiura, ' glowing skies', officially Stewart Island / Rakiura) is New Zealand's third-largest island, located south of the South Island, across the Foveaux Strait. It is a roughly triangular island with a total land ar ...

and the Auckland Islands, while ''Buccinulum pertinax finlayi'' is found north of this range, up to Cook Strait. In the waters of the Otago Region, intermediate forms between the two subspecies can be found. In 2005, a specimen of ''Buccinulum pertinax pertinax'' was found off the coast of

Raglan Raglan may refer to: People *FitzRoy Somerset, 1st Baron Raglan (1788–1855), British Army officer, commander of British troops during the Crimean War *Raglan (surname) *Raglan Squire (1912–2004), British architect Places Australia *Count ...

, vastly extending its known range. The species is commonly found underneath boulders.

References

{{Taxonbar, from=Q114841728 Buccinidae Gastropods described in 1878 Gastropods of New Zealand Endemic fauna of New Zealand Endemic molluscs of New Zealand Molluscs of the Pacific Ocean