''Crassispira takeokensis'' is a
species
A species () is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. It is the basic unit of Taxonomy (biology), ...
of
sea snail
Sea snails are slow-moving marine (ocean), marine gastropod Mollusca, molluscs, usually with visible external shells, such as whelk or abalone. They share the Taxonomic classification, taxonomic class Gastropoda with slugs, which are distinguishe ...
, a marine
gastropod
Gastropods (), commonly known as slugs and snails, belong to a large Taxonomy (biology), taxonomic class of invertebrates within the phylum Mollusca called Gastropoda ().
This class comprises snails and slugs from saltwater, freshwater, and fro ...
mollusk
Mollusca is a phylum of protostomic invertebrate animals, whose members are known as molluscs or mollusks (). Around 76,000 extant species of molluscs are recognized, making it the second-largest animal phylum after Arthropoda. The ...
in the
family
Family (from ) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). It forms the basis for social order. Ideally, families offer predictabili ...
Pseudomelatomidae
Pseudomelatomidae is a family (biology), family of predatory sea snails, marine gastropods included in the superfamily Conoidea (previously Conacea) and part of the Neogastropoda (Taxonomy of the Gastropoda (Bouchet & Rocroi, 2005), Bouchet & Ro ...
, the turrids and allies.
[MolluscaBase (2018). Crassispira takeokensis (Otuka, 1949). Accessed through: World Register of Marine Species at: http://marinespecies.org/aphia.php?p=taxdetails&id=580271 on 2018-09-05]
Description
The length of the shell attains 21.4 mm.
Distribution
This marine species occurs off
Japan
Japan is an island country in East Asia. Located in the Pacific Ocean off the northeast coast of the Asia, Asian mainland, it is bordered on the west by the Sea of Japan and extends from the Sea of Okhotsk in the north to the East China Sea ...
found at depths between 740 m and 1030 m.
References
* Otuka, Y., 1949: Fossil Mollusca and rocks of the Kiyosumi group exposed at Minato-machi, Chiba Prefecture, and its environs (1st paper). Japanese Journal of Geology and Geography, vol. 21, nos. 1–4, pp. 295–309, pl. 13.
* Hasegawa, K., Okutani, T. and E. Tsuchida (2000) Family Turridae. In: Okutani, T. (ed.), Marine Mollusks in Japan. Tokai University Press, Tokyo, 619-667
* Hasegawa K. (2009) Upper bathyal gastropods of the Pacific coast of northern Honshu, Japan, chiefly collected by R/V Wakataka-maru. In: T. Fujita (ed.), Deep-sea fauna and pollutants off Pacific coast of northern Japan. National Museum of Nature and Science Monographs 39: 225-383
Hasegawa K. & Okutani T. (2011) A review of bathyal shell-bearing gastropods in Sagami Bay. Memoirs of the National Sciences Museum, Tokyo 47: 97-144
External links
takeokensis
Gastropods described in 1949
{{Pseudomelatomidae-stub