Conasprella

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Conasprella
Housing of Conasprella jaspidea

Housing of Conasprella jaspidea

Systematics
Order : Sorbeoconcha
Subordination : Hypsogastropoda
Partial order : New snails (Neogastropoda)
Superfamily : Conoidea
Family : Cone snails (Conidae)
Genre : Conasprella
Scientific name
Conasprella
Thiele , 1929

Conasprella is the name of a genus of snails from the family of cone snails , whose approximately 150 species in warm waters of the western Atlantic Ocean and Caribbean Sea and in the Indo-Pacific are common and which are derived from Vielborstern feed.

features

The cone snails of the genus Conasprella have a multi-thread protoconch with two and a half whorls . The snail shell is conical, the conical thread is raised, and the early whorls have nodules on the periphery. The circumference of the body is covered at regular intervals with cords or furrows that extend from the middle to the shoulder, and cords can also run on top of the circumferences of the thread. There is no siphon notch and the anal notch is deep. The periostracum is smooth, the operculum small.

The radula teeth , connected to a venom gland , have a short cutting edge that takes up a third of the front part of the tooth. There is no rear cutting edge, but there is a spur at the base and the barb is short. There is a fold on the shaft and an inner, rear fold, although the fold on the shaft is difficult to see.

distribution and habitat

The cone snails of the genus Conasprella are found in tropical waters of all oceans excluding the eastern Atlantic, i.e. both in the Indo-Pacific with the Indian Ocean and the western Pacific, as well as in the eastern Pacific and in the western Atlantic with the Caribbean .

nutrition

From the shape of fangs at the radula compared to other cone snails or Pfeilzünglern in which these teeth serve the sticking and poisoning of the prey is concluded that all known species of the genus Conasprella generally polychaetes capture (Polychaeta). Documented for two Caribbean species that Conasprella jaspidea large fire bristle worms eats and that Conasprella puncticulata of small Vielborstern malnourished. In contrast, remains of both acorn worms and snails were found in the stomachs of the centurion cone ( Conasprella centurio ) .

species

The following 149 species are counted in the genus Conasprella :

literature

  • Johannes Thiele: Handbook of systematic molluscology. Gustav Fischer Verlag, Jena 1929. Volume 1, part 1, pp. 1 - 376, here sub-genus Conus (Conasprella) Thiele, 1929 , p. 373.
  • JK Tucker, MJ Tenorio (2009): Systematic Classification of Recent and Fossil Conoidean Gastropods. ConchBooks, Hankenheim 2009.
  • N. Puillandre, TF Duda, C. Meyer, BM Olivera, P. Bouchet (2015): One, four or 100 genera? A new classification of the cone snails. Journal of Molluscan Studies 81, pp. 1-23.

Web links

Commons : Conasprella  - collection of images, videos and audio files

Individual evidence

  1. ↑ Rickard Zerpe (2017): Cone snail ( Conasprella jaspidea pealii ) eating a fireworm. Meerwasser-Lexikon.de
  2. ↑ David P. Berschauer, Leo G. Ros, Jordy Wendriks: Microhabitats of Two Perplexiconus Species in Aruba. The Cone Collector 23 , pp. 3–6, here p. 4.
  3. ↑ Peter L. Percharde (1974): Underwater Observations on Two Rare Southern Caribbean Cones, (Mollusca, Gastropoda) - Conus mappa (Lightfoot) 1786 and Conus centurio Born 1778 in Trinidad & Tobago. Living World 1983–1984, pp. 46–53, here pp. 50 and 52.