The present study gives a formal name to the ‘scaly-foot gastropod’, Chrysomallon squamiferum n. gen., n. sp. with Longqi vent field as the type. As greigite is magnetic, the animal actually sticks to magnets. The three known populations of Chrysomallon squamiferum: Kairei, Longqi. Chrysomallon squamiferum Chen, Linse, Copley, & Rogers, For more multimedia, look at Chrysomallon squamiferum on Wikimedia Commons.

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Heterobranchia from Argentina triples their diversity in northern Patagonia. Institutional abbreviations are as follows:. Leave a Reply Cancel reply Enter your comment here Views Read Edit View history.

Consensus tree reconstructed using Bayesian inference from crysomsllon bp fragment of COI gene from species of Peltospiridae and Chrysomallon squamiferum n. Exterior often coated by a black layer of iron sulphide. It has not been formally named, despite attracting great attention from both scientists and the general public alike, although a manuscript name has occasionally been used in various sources.

All species used are the type species of their respective genera, except Nodopelta for which COI sequences of the type species N. The distance between Longqi and Kairei is c.

File:Chrysomallon squamiferum 3.png

Oesophageal gland and gonad are partly dissected to show structures underneath or within. The shell structure consists of crysomalon layers. The shell of these species has three whorls. By using this site, you agree to the Terms of Use and Privacy Policy. The anatomy of some new archaeogastropod limpets superfamily Peltospiracea from hydrothermal vents. The scaly-foot snail has also harnessed the power of chemosynthesis, housing endosymbiotic bacteria — bacteria living inside another creature squamkferum mutual benefit — in an enlarged part of its gut.

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Chrysomallon squamiferum, a snail with iron in its shell |

Close-up of central and lateral teeth. Crysomalln models selected were as follows: Twitter Facebook Pinterest More Google. Chrysomallon squamiferum from the Kairei vent field.

The harsh environment has caused the snail to develop a unique exoskeleton. Details of zquamiferum and lateral teeth. The nervous system is large, and the brain is a solid neural mass without ganglia.

Foot large, unable to contract entirely into shell, red when alive.

Revision of Pyramidellidae Gastropoda: Peltospiridae snails are mainly known to live in Eastern Pacific vent fields. This gastropod is a simultaneous hermaphrodite.

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The middle organic layer acts as padding to dissipate further the mechanical strain and energy generated by a squeezing attack, such as by the claws of a crab, making it less likely that the mollusc’s brittle inner shell will crack. Scaly-foot gastropod is the only animal on Earth known to utilize iron in this way. DNA primers for amplification of mitochondrial cytochrome c oxidase subunit I from diverse metazoan invertebrates.

Sigwart Queen’s University Belfast, Marine Laboratory deserves special mention and recognition for her key aid in taxonomic discussion and great support of the project. Non-neomphaline gastropod outgroups were selected from Vetigastropoda, Cocculiniformia, Caenogastropoda and Patellogastropoda.

The mouth is a circular ring of muscles when contracted and closed. The new genus is placed in the family Peltospiridae based on morphological characteristics, including lack of sexual dimorphism, no copulatory organ, the distal end of marginal teeth being subdivided into many denticles and the ventral margin of the gill leaflets carrying a series of bulges.

The Museum received a set of five specimens as part of the description process, which will squamiferim as key references for scientists who wish to study this extraordinary species in the future.

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Chrysomallon squamiferum, a snail with iron in its shell

The above description is based on specimens from the type locality: Known from the following three hydrothermal vent fields in the Indian Ocean, found on active black smokers as well as on diffuse flow sites.

Rectum exits to mantle cavity on right. For Neomphalina, epipodial structure is an important character for identification and no other species has hard sclerites. First active hydrothermal vents on an ultraslow-spreading center: Chrysomallon Greekgolden haired. Scaly-foot gastropod is not protected. Rest of digestive system relatively small, in particular intestine, midgut and stomach.

Newly designed using Primer3 Untergasser et al. Each layer appear to contribute to the effectiveness of the snail’s defense in different ways.

Fill in your details below or click an icon to log in: Very large for Peltospiridae, up to Specimens from Longqi closely resemble those from Kairei. Determining diet and establishing a captive population of a rare endemic detritivore, the endangered Novisuccinea chittenangoensis Pilsbry, Pulmonata: The specimens from the Solitaire vent field are not covered in iron sulphide and thus have white sclerites and a light brown shell resulting from the exposed periostracum Nakamura et al.

These results do not contradict with the placement of C.

This is likely to result from the lack of iron in the vent fluid of Solitaire Nakamura et al.