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Falcidens

{{Short description|Genus of molluscs}}

{{Automatic taxobox

| image = Falcidens.png

| image_alt = "Falcidens" sp. stained with osmium tetroxide and embedded in Spurr's resin for electron microscopy, scanned in resin block. Volume rendering of a low-resolution scan, showing the anterior-most 1.4 mm of the animal.

| image_caption = Falcidens sp. stained with osmium tetroxide and embedded in Spurr's resin for electron microscopy, scanned in resin block. Volume rendering of a low-resolution scan, showing the anterior-most 1.4 mm of the animal.Metscher B. D. (2009) "MicroCT for comparative morphology: simple staining methods allow high-contrast 3D imaging of diverse non-mineralized animal tissues". BMC Physiology 9:11. doi:10.1186/1472-6793-9-11 Cropped from figure 13.

| taxon = Falcidens

| authority = Salvini-Plawen, 1968

}}

Falcidens is one of three genera within the family Chaetodermatida; its radula consists of a single row of teeth which are mineralized in crystalline hydroxyapatite (a most unusual mineral in organisms), and its teeth are not periodically shed and replaced like in other molluscs.{{Cite journal | pages = 224–230 | issue = 2 | volume = 194 | year = 1998 | pmid = 28570844| jstor = 1543051| journal = Biological Bulletin | doi = 10.2307/1543051 | last2 = Lins | first1 = R. | first2 = U. | last3 = Farina | title = Minerals of the radular apparatus of Falcidens sp. (Caudofoveata) and the evolutionary implications for the Phylum Mollusca | first3 = M. | last1 = Cruz | url = https://www.biodiversitylibrary.org/part/31306 }}

For details of the radula, see Radula#In caudofoveates.

It contains the following species:{{cite web|url=http://www.marinespecies.org/aphia.php?p=taxdetails&id=137774|title=WoRMS - World Register of Marine Species - Falcidens Salvini-Plawen, 1968|website=www.marinespecies.org|access-date=4 June 2019}}

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References

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Category:Chaetodermatidae

Category:Taxa described in 1968