''Clavatula caerulea'' 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 ...
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
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 e ...
in the
family
Family (from la, familia) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its ...
Clavatulidae
Clavatulidae is a taxonomic family of sea snails, marine gastropod mollusks in the superfamily Conoidea. The family is not well differentiated morphologically.
Clavatulidae was raised, based on cladistic analysis, from subfamily to the family ...
.
Description
The length of the shell attains 20 mm. The shell is narrowly turreted and strongly keeled. The keel is tuberculated, with revolving, sometimes granulous striae below it. The granules are more apparent at the base. The color of the shell is bluish, the tubercles white, with the interstices purplish.
G.W. Tryon (1884) Manual of Conchology, structural and systematic, with illustrations of the species, vol. VI; Philadelphia, Academy of Natural Sciences
/ref>
Distribution
This marine species occurs off Angola
, national_anthem = " Angola Avante"()
, image_map =
, map_caption =
, capital = Luanda
, religion =
, religion_year = 2020
, religion_ref =
, coordina ...
.
References
* Weinkauff. Conch. Cab., p. 34, pi. vii, f. 4–6, 23
* Gofas, S.; Afonso, J.P.; Brandào, M. (Ed.). (S.a.). ''Conchas e Moluscos de Angola = Coquillages et Mollusques d'Angola. hells and molluscs of Angola'. Universidade Agostinho / Elf Aquitaine Angola: Angola. 140 pp.
* Nolf F. (2011) ''Rehabilitation of Clavatula smithi Knudsen, 1952 (Mollusca: Gastropoda: Clavatulidae).'' Neptunea 10(2): 5–15.
*
External links
*
{{DEFAULTSORT:Clavatula Caerulea
Endemic fauna of Angola
caerulea
''Caerulea'' is a genus of butterflies in the family Lycaenidae. It is a small genus with only two
species.
*'' Caerulea coeligena'' (Oberthür, 1876) western China, central China.
*'' Caerulea coelestis'' (Alphéraky, 1897) Tibet, western Chin ...
Gastropods described in 1875