Naticidae

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Naticidae
Temporal range: late Triassic or early Jurassic – Recent[1]
Natica hebraea.jpg
A live individual of Naticarius hebraeus (Martyn, 1786), viewed from the front
Scientific classification
Kingdom:
Animalia
Phylum:
Mollusca
Class:
Gastropoda
(unranked):
clade Caenogastropoda
clade Hypsogastropoda
clade Littorinimorpha
Superfamily:
Naticoidea

Guilding, 1834
Family:
Naticidae

Guilding, 1834
Diversity[1]
260–270 Recent species

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Naticidae, common name the moon snails or necklace shells, is a family of minute to large-sized predatory sea snails, marine gastropod molluscs in the clade Littorinimorpha. The shells of the species in this family are mostly rather globular in shape.

Naticidae is the only family in the superfamily Naticoidea.

It has been estimated that worldwide there are about 260–270 Recent species of naticid snails.[1] This group is assumed to have originated in the late Triassic or in the early Jurassic.[1] Members of this family can be recognized by the shape of their shells, distinct appearance or by their predatory behavior.[1]

Distribution

Naticids are widely distributed and occur worldwide. The greatest diversity of both species and genera is found in tropical regions. Even so, naticid snails are also plentiful in temperate, Arctic and Antarctic waters.[1]

Habitat

Moon snails live on sandy substrates, at a great variety of depths depending on the species (from the intertidal zone to thousands of meters in depth).[1] They are often seen ploughing along in the sand searching for prey.

Life habits

50-second video of snails (most likely Natica chemnitzi and Cerithium muscarum) feeding on the sea floor in the Gulf of California, Puerto Peñasco, Mexico.
File:Moon Snail.jpg
A moon snail (Naticarius orientalis) on the prowl at night. Found on the north coast of East Timor.
File:Notocochlis gualteriana.JPG
Notocochlis gualteriana
File:Naticarius millepunctatus Pliocene Cyprus.jpg
A fossil shell of Naticarius millepunctatus from the Nicosia Formation, Pliocene, Cyprus

Naticids are predatory, feeding mostly on bivalves. They will also attack almost any other shelled mollusk they encounter in the sand, such as scaphopods and other gastropods, including other moon snails.[1] Additionally, Conuber sordidum was shown to prey on the soldier crab Mictyris longicarpus (Crustacea) by drilling predation.[2][3] To catch soldier crabs, C. sordidum uses the same stereotyped behaviour as previously described for moon snails hunting shelled molluscan prey.[3]

The moon snail envelops the prey and then bores a hole through the shell using its radula and an acid secretion. Once the shell is bored open, the proboscis is used to consume the flesh of the prey. The hole in the shell, which has a "countersunk" appearance with chamfered edges, and which varies in size according to the species, is a characteristic diagnostic sign of moon snail predation.

In the breeding season, the female moon snail lays a rather stiff egg mass which includes sand and mucus. These objects wash up on sandy beaches fairly often, and are known by the common name "sand collars" because of their resemblance to an old-fashioned removable shirt collar or false-collar.

Taxonomy

Traditional classification

Some authors have suggested a distinct separation of the Naticidae into four subfamilies: Ampullospirinae, Naticinae, Polinicinae and Sininae.[4] This arrangement is mainly based on morphological data, such as details of the operculum including the material (calcareous in the Naticinae, corneous in the Polinicinae and Sininae) and size, and also the morphology of the shell.[5][6][7]

2005 taxonomy

The following four subfamilies were recognized in the taxonomy of Bouchet & Rocroi (2005):[8]

  • Naticinae Guilding, 1834 - synonyms: Neveritinae Gray, 1857; Choristidae Verrill, 1882; Euspiridae Cossmann, 1907; Mammillinae Iredale & McMichael, 1962; Eunaticinini Oyama, 1469
  • Sininae Woodring, 1928 - synonyms: Sigaretidae Gary, 1827; Cryptostomidae Gray, 1827
  • Globisininae Powell, 1933
  • Polinicinae Gray, 1847

Genera

Genera in the family Naticidae include:

Unassigned to a subfamily:

subfamily Naticinae

subfamily Globisininae

subfamily Polinicinae Gray, 1847

subfamily Sininae

subfamily ?

References

  1. ↑ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 Lua error in package.lua at line 80: module 'strict' not found.
  2. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  3. ↑ 3.0 3.1 Huelsken, T. (2011) First evidence of drilling predation by Conuber sordidus (Swainson, 1821) (Gastropoda: Naticidae) on soldier crabs (Crustacea: Mictyridae). Molluscan Research, 31(2), 125-131. [1]
  4. ↑ Kabat A.R. 1991. The classification of the Naticidae (Mollusca: Gastropoda): Review and analysis of the supraspecific taxa. Bull. Mus. Comp. Zool., 152, 417-449.
  5. ↑ Cernohorsky W.O. 1971. The family Naticidae (Mollusca: Gastropoda) in the Fiji Islands. Auckland Inst. Mus., 8, 169-208.
  6. ↑ 6.0 6.1 Marincovich L.N. 1977. Cenozoic Naticidae (Mollusca: Gastropoda) of the Northeastern Pacific. Bulletins of American Paleontology, 70, 169-212.
  7. ↑ Bandel K. 1999. On the origin of the carnivorous gastropod group Naticoidea (Mollusca) in the Cretaceous with description of some convergent but unrelated groups. Greifswalder Geowissenschaftliche Beiträge, 6, 134-175.
  8. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  9. ↑ Huelsken, T., Wägele, H., Peters, B., Mather, A., Hollmann, M. (2011) Molecular analysis of adults and egg masses reveals two independent lineages within the infaunal gastropod Naticarius onca (Röding, 1798) (Caenogastropoda: Naticidae). Molluscan Research, 31(3), 141-151. PDF
  10. ↑ Majima, R. 1989. Cenozoic fossil Naticidae (Mollusca: Gastropoda) in Japan. Bulletin of American Paleontology, 96 (331), 1-159.
  11. ↑ Huelsken T. et al. 2006. Neverita delessertiana (Recluz in Chenu, 1843): a naticid species (Gastropoda: Caenogastropoda) distinct from Neverita duplicata (Say, 1822) based on molecular data, morphological characters, and geographical distribution. Zootaxa, 1257:1-25.
  12. ↑ Huelsken, T., Tapken, D., Dahlmann, T., Wägele, H., Riginos, C., Hollmann, M. (2012). Systematics and phylogenetic species delimitation within Polinices s.l. (Caenogastropoda: Naticidae) based on molecular data and shell morphology. Organisms Diversity & Evolution. DOI: 10.1007/s13127-012-0111-5.
  13. ↑ Siemers C. T. & King N. R. (1974). "Macroinvertebrate paleoecology of a transgressive marine sandstone, Cliff House Sandstone (Upper Cretaceous), Chaco Canyon, northwestern New Mexico" PDF.

Further reading

External links

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