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Melanochlamys cylindrica Cheeseman 1881

Melanochlamys cylindrica

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The internal shell structure

Melanochlamys cylindrica is a species of bubble snail in the family Aglajidae. It is endemic to New Zealand.[1]

Distribution and habitat

M. cylindrica is found on the coast of New Zealand's North and South Islands. It is absent from the Three Kings Islands/Manawatāwhi due to a lack of suitable habitat.[2]

Description

Adults are between 15 and 25 mm in length but may reach a maximum size of 30 mm.[2] Body is long and cylindrical in shape with a uniformly black colour that may feature an iridescent blue sheen.[3] The head shield is rounded with an indentation that may resemble two 'tails'.[2] The parapodia are small and held tightly against sides of body.[2] A large muscular mouth part (known as the buccal bulb) is contained in the anterior half of the body cavity.[3]

Shell

This species has a smaller than usual internal shell that is 6 mm long and 5 mm wide. The shell is ear-shaped without formed whorls. It is heavily calcified and contained within the posterior part of the body.[4][5]

Behaviour and diet

M. cylindrica is most commonly found in the mid-intertidal zone in algal turf and on rock platforms.[3] It may also be found down in shallow sub-tidal area.[2]

It feeds on polychaete worms including bristle worms and round worms by "rapidly sucking them in like a piece of spaghetti" which are then broken apart by a muscular gizzard.[2][3]

References

  1. ^ "WoRMS - World Register of Marine Species - Melanochlamys Cheeseman, 1881". www.marinespecies.org. Retrieved 2020-10-21.
  2. ^ a b c d e f "Super Sea Slugs". NIWA. 2020-10-19. Retrieved 2020-10-21.
  3. ^ a b c d Rudman, W. B. (2010-07-15). "The Sea Slug Forum - Melanochlamys cylindrica". www.seaslugforum.net. Retrieved 2020-10-21.{{cite web}}: CS1 maint: url-status (link)
  4. ^ "NZ Mollusca - Melanochlamys cylindrica". www.mollusca.co.nz. Retrieved 2020-10-21.
  5. ^ Shell of Melanochlamys cylindrica, Bill Rudman (2010-06-09). "The Sea Slug Forum - Melanochlamys cylindrica". www.seaslugforum.net. Retrieved 2020-10-21.{{cite web}}: CS1 maint: url-status (link)
  • Spencer, H.G., Marshall, B.A. & Willan, R.C. (2009). Checklist of New Zealand living Mollusca. Pp 196-219. in: Gordon, D.P. (ed.) New Zealand inventory of biodiversity. Volume one. Kingdom Animalia: Radiata, Lophotrochozoa, Deuterostomia. Canterbury University Press, Christchurch

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Melanochlamys cylindrica: Brief Summary

provided by wikipedia EN
 src= The internal shell structure

Melanochlamys cylindrica is a species of bubble snail in the family Aglajidae. It is endemic to New Zealand.

license
cc-by-sa-3.0
copyright
Wikipedia authors and editors
original
visit source
partner site
wikipedia EN