''Mitromorpha granum'' is an extinct species of

sea snail Sea snail is a common name for slow-moving marine gastropod molluscs, usually with visible external shells, such as whelk or abalone. They share the taxonomic class Gastropoda with slugs, which are distinguished from snails primarily by the ...

, a marine

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 ...

mollusk in the family

Mitromorphidae Mitromorphidae is a monophyletic family of small to medium-sized sea snails, marine gastropod mollusks in the superfamily Conoidea.Bouchet, P. (2011). Mitromorphidae Casey, 1904. In: MolluscaBase (2018). Accessed through: World Register of Marin ...

.MolluscaBase (2018). Mitromorpha granum (Marwick, 1928) †. Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=831647 on 2018-04-18

Description

The length of the shell attains , its diameter .

Distribution

This extinct species is endemic to New Zealand and was found off the Whenuaturu Peninsula.

References

* Maxwell, P.A. (2009). ''Cenozoic Mollusca''. pp. 232–254 in Gordon, D.P. (ed.) New Zealand inventory of biodiversity. Volume one. Kingdom Animalia: Radiata, Lophotrochozoa, Deuterostomia. Canterbury University Press, Christchurch.

External links

Marwick, J. "The Tertiary Mollusca of the Chatham Islands including a generic revision of the New Zealand Pectinidae." Transactions of the New Zealand institute. Vol. 58. No. 4. 1928.

granum Thylakoids are membrane-bound compartments inside chloroplasts and cyanobacteria. They are the site of the light-dependent reactions of photosynthesis. Thylakoids consist of a thylakoid membrane surrounding a thylakoid lumen. Chloroplast thyla ...

Gastropods described in 1928 Gastropods of New Zealand {{mitromorpha-stub