January 24, 2019

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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The Iron Snail | More Than A Dodo

Related articles in Web of Science Google Scholar. From published figures, specimens from Kairei and Solitaire vent fields in CIR appear to have broader sclerites than those from Longqi cf.

Rest of digestive system reduced, with short intestine forming a simple loop. The distance between Longqi and Kairei is c.

Periostracum thick, brown, envelopes shell edge. No sexual dimorphism observed. This locality was chosen as type locality because of the large number of specimens available.

Chrysomallon squamiferum, a snail with iron in its shell

List of PCR primers used in obtaining sequences of Chrysomallon squamiferum n. Marginal teeth elongate with a truncated distal end dividing into about 20 slender denticles.

Email alerts New issue alert. Listing, impact assessment and prioritization of introduced land snail and slug species in Indonesia. Line of best fit: Only sequences with good quality matching forward and reverse readings were used in downstream analyses.


The abundance of scaly-foot gastropods was lower in the Kairei field than in the Longqi field. You are commenting using your Facebook account.

Gonads displaced anteriorly to headfoot region, occupying ventral face of visceral mass. Within the Peltospiridae, the new genus can easily be distinguished from the limpet-form genera Echinopelta McLean, ; Nodopelta McLean, and Rhynchopelta McLean,as it has a distinctly coiled shell with approximately three whorls. The area containing the protoconch was excavated in adult specimens in attempts to observe the protoconch. The water in these vents are high in sulfides and metals, which the snails have incorporated into their shells.

Chrysomallon also has a truncated comb-like ending to the marginal teeth, which is present in only the Peltospiridae and Melanodrymiidae. Crysomalon images of a single sclerite of Chrysomallon squamiferum n.

Scaly-foot gastropod

The shell is of a unique construction, with three layers; the outer layer consists of iron sulfidesthe middle layer is equivalent to the organic periostracum found in other gastropods, and the innermost layer is made of aragonite.

It is really amazing! Improvement of phylogenies after removing divergent and ambiguously aligned blocks from protein sequence alignments. Two studies Nakamura et al. Although this species has a similar shell shape and general form to other peltospirids, the ctenidium is proportional size to that of Hirtopeltawhich has the largest gill among peltospirid genera that have been investigated anatomically so far.


Frontiers squamifeerum Marine Science.

Maximum-likelihood distance matrix of seven Peltospiridae squamigerum constructed from bp fragment of COI gene. From Wikipedia, the free encyclopedia. The respiratory system and circulatory system consist of a single left bipectinate ctenidium gillwhich is very large Both morphological and genetic results are consistent with the conclusion that the population newly discovered in Longqi vent field, SWIR represents the same species as the previously known populations in the Kairei and Solitaire fields, CIR.

This species is considered squamferum be one of the most peculiar deep-sea hydrothermal-vent gastropods, and it is the only known extant animal that incorporates iron sulfide into its skeleton into both its sclerites and into its shell as an exoskeleton.

Multispiral, concentric in juveniles. Since its discovery, the biology of Chrysomallon squamiferum n. The Highway of Death.

The armor is so effective that the United States military is currently funding research on the armor of the snail in hopes of developing insights into new military armor designs.