{ { Speciesbox
| image = Vermetidae - Petaloconchus glomeratus.JPG
| image_caption = Fossils of Petaloconchus glomeratus from Quaternary of Italy
| taxon = Petaloconchus glomeratus
| authority = (Linnaeus, 1758) | synonyms_ref = | synonyms = Serpula conglomerata Linnaeus, 1758 Serpula glomerata Linnaeus, 1758 Vermetus gregarius f. solitarius Monterosato, 1892 (junior primary homonym) Vermetus intortus Weinkauff, 1868 (synonym) Vermetus subcancellatus Bivona-Bernardi, 1832 Vermetus subcancellatus f. cylindratus Monterosato, 1892 Vermetus subcancellatus f. intortiformis Monterosato, 1892 Vermetus subcancellatus f. solitarius Monterosato, 1892 Vermetus subcancellatus f. trichus Monterosato, 1892 Vermetus subcancellatus f. tubulosus Monterosato, 1892 Vermetus subcancellatus f. vermiculina Monterosato, 1892 Vermetus subcancellatus var. albina Monterosato, 1892 Vermetus subcancellatus var. albinus Monterosato, 1884 Vermetus subcancellatus var. cylindrata Monterosato, 1892 Vermetus subcancellatus var. intortiformis Monterosato, 1892 Vermetus subcancellatus var. minor Monterosato, 1884 Vermetus subcancellatus var. solitaria Monterosato, 1892 Vermetus subcancellatus var. soluta Monterosato, 1884 Vermetus subcancellatus var. tricha Monterosato, 1892 Vermetus subcancellatus var. tubulosa Monterosato, 1892 Vermetus subcancellatus var. vermiculina Monterosato, 1892 }}Petaloconchus glomeratus''' is a species of sea snail, a marine gastropod mollusk in the family Vermetidae, the worm snails or worm shells.
Description
Shells of Petaloconchus glomeratus can reach a size of . They are elongated, tubular, and extremely irregular. These "worm shells" usually grow cemented in colonies onto a hard substrate.
Distribution
This species is present in the Mediterranean Sea - Eastern Basin and in North Atlantic Ocean.
References
Gofas, S.; Le Renard, J.; Bouchet, P. (2001). Mollusca. in: Costello, M.J. et al. (eds), European Register of Marine Species: a check-list of the marine species in Europe and a bibliography of guides to their identification.'' Patrimoines Naturels. 50: 180-213.