''Crassispira bottae'' is a 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

Pseudomelatomidae Pseudomelatomidae is a family of predatory sea snails, marine gastropods included in the superfamily Conoidea (previously Conacea) and part of the Neogastropoda ( Bouchet & Rocroi, 2005). In 1995 Kantor elevated the subfamily Pseudomelatomina ...

.MolluscaBase (2018). Crassispira bottae (Valenciennes in Kiener, 1839). Accessed through: World Register of Marine Species at: http://marinespecies.org/aphia.php?p=taxdetails&id=578931 on 2018-07-28 ITIS considers this species a synonym of ''

Crassispira incrassata ''Crassispira incrassata'' is a species of predatory sea snail in the family (biology), family Pseudomelatomidae. This species is Endemism, endemic to the Gulf of California, Sea of Cortez, ranging from Western Mexico to Ecuador in intertidal ...

'' (Sowerby I, 1834) McLean confirmed that ''Pleurotoma bottae'' was a synonym of ''Crassispira incrassata'' The

radula The radula (, ; plural radulae or radulas) is an anatomical structure used by molluscs for feeding, sometimes compared to a tongue. It is a minutely toothed, chitinous ribbon, which is typically used for scraping or cutting food before the food ...

and the morphology was studied by Kantor ''et al.'' in 1997

Description

The length of the shell varies between 35 mm and 50 mm. The ponderous shell is dark chestnut or chocolate. The shell shows a slight shoulder-angle, above which the

whorl A whorl ( or ) is an individual circle, oval, volution or equivalent in a whorled pattern, which consists of a spiral or multiple concentric objects (including circles, ovals and arcs). Whorls in nature File:Photograph and axial plane floral ...

s are slightly concave to a sutural band. Below the shoulder the shell shows close rude longitudinal ribs, sometimes decussated into nodules by the raised revolving lines. Towards the base of the

body whorl The body whorl is part of the morphology of the shell in those gastropod mollusks that possess a coiled shell. The term is also sometimes used in a similar way to describe the shell of a cephalopod mollusk. In gastropods In gastropods, the b ...

the latter remain prominent, whilst the former have vanished.G.W. Tryon (1884) Manual of Conchology, structural and systematic, with illustrations of the species, vol. VI; Philadelphia, Academy of Natural Sciences

Distribution

This marine species occurs off the Sea of Cortez, Western Mexico to Ecuador

References

* Kiener, L.-C., 1839 ''Genre Pleurotome (Pleurotoma, Lam). Volume 5''. In: Species général et iconographie des coquilles vivantes

External links

* *
Denver museum of nature & science: ''Crassispira bottae''
{{DEFAULTSORT:Crassispira Bottae bottae Gastropods described in 1839