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''Pilsbryspira collaris'' 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 ...
.


Description

The length of the shell varies between 10 mm and 14 mm.


Distribution

This species occurs in the Pacific Ocean from Mazatlan, Mexico to northern
Peru Peru, officially the Republic of Peru, is a country in western South America. It is bordered in the north by Ecuador and Colombia, in the east by Brazil, in the southeast by Bolivia, in the south by Chile, and in the south and west by the Pac ...
.


References

* Sowerby, Proc. Zool. Soc., p. 139 * Casey T.L. (1903). ''Notes in the Conrad collection of Vicksburg fossils, with descriptions of new species.'' Proceedings of the Academy of Natural Sciences, Philadelphia 55: 261–283


External links


W.H. Dall (1909), Report on the collection of shells from Peru ;Proceedings of the United States National Museum, Vol. 37, pages 147–294, with Plates 20–28
*
Gastropods.com: ''Pilsbryspira collaris''
collaris Gastropods described in 1834 {{Pseudomelatomidae-stub