Costellariidae
| Costellariidae | ||||||||||||
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Housing of Vexillum consanguineum |
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| Systematics | ||||||||||||
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| Scientific name | ||||||||||||
| Costellariidae | ||||||||||||
| JD MacDonald , 1860 |
The Costellariidae , also known as " False Mitra Snails ", are a family of small to large snails from the Caenogastropoda group with spindle-shaped shells that are common in the tropical seas of all three major oceans. Their houses look very similar to those of the mitra snails . They can only be distinguished from them on the basis of anatomical features of the soft tissues and have therefore been counted among these for a long time, even though, according to molecular genetic studies, they are closer to the spiked snails .
features
The exclusively marine Costellariidae have spindle-shaped to egg-shaped shells , which are mainly axially sculpted and reach lengths of 3 mm to 8 cm in adult snails. The shape of the housing can be elongated, broadly ovoid or almost cylindrical, depending on the type. The spindle has 3 to 6 folds. The animals have no operculum.
The Costellariidae differ from the Mitridae in that they have paired accessory salivary glands and a corpse gland in the foregut, which secrete a yellow-green hypobranchial secretion and not a purple-colored one like the Mitridae. The radula has wide, multi-humped central teeth and single-humped posterior teeth.
Most Costellariidae live on sandy substrates or burrow in the mud or sand, but some live on coral reefs under rocks or stones.
The Costellariidae eat various small animals such as worm-shaped prey and mollusks.
Genera
The following 18 genera belong to the Costellariidae family:
- Alisimitra Fedosov, Herrmann & Bouchet, 2017
- Atlantilux Huang, 2015
- Austromitra Finlay, 1926
- Ceratoxancus Kuroda, 1952
- Costapex Fedosov, Herrmann & Bouchet, 2017
- Latiromitra Locard, 1897
- Mitromica S. S. Berry, 1958
- Nodicostellaria Petuch, 1987
- Orphanopusia Fedosov, Herrmann & Bouchet, 2017
- Protoelongata Herrmann, Stossier & Salisbury, 2014
- Pusia Swainson, 1840
- Suluspira Fedosov, Herrmann & Bouchet, 2017
- Thala H. Adams & A. Adams, 1853
- Thaluta Rosenberg & Callomon, 2004
- Tosapusia Habe, 1964
- Turricostellaria Petuch, 1987
- Turriplicifer Fedosov, Marrow, Herrmann & Bouchet, 2017
- Vexillum Röding, 1798
literature
- John Wesley Tunnell: Encyclopedia of Texas Seashells: Identification, Ecology, Distribution, and History. Texas A&M University Press, College Station (Texas) 2010. p. 227.
Web links
- Family Costellariidae - False Mitra Snails - Fischhaus Zepkow
Individual evidence
- ^ Scott Johnson (1971): What goes around. "[M] any [Mitridae] specialize on sipunculan (peanut) worms. [...] Costellariidae have a much wider diet that appears to include both worms and molluscs. " Hawaiian Shell News 41 (6), p. 5.
- ^ World Register of Marine Species , Costellariidae MacDonald, 1860