Contribution to the knowledge of two boring gastropods with an annotated list of the genera Magilus Monfort, 1810 and Leptoconchus Ruppell, 1835
Massin, C. (1982). Contribution to the knowledge of two boring gastropods with an annotated list of the genera Magilus Monfort, 1810 and Leptoconchus Ruppell, 1835. Bull. K. Belg. Inst. Nat. Wet. 53(17): 1-28, 1 pl.
In: Bulletin. Institut Royal des Sciences Naturelles de Belgique. Mededelingen. Koninklijk Belgisch Instituut voor Natuurwetenschappen. KBIN: Brussel. ISSN 0368-0177, more
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| Keywords |
Leptoconchus Rüppell, 1835 [WoRMS]; Magilus Montfort, 1810 [WoRMS]
Marine/Coastal |
| Abstract |
Magilus antiquus MONTFORT , 1810 is an active borer, digging a hole in front of its tube. This hole communicates with the exterior by a short chimney. The small operculum of Magilus spp. is unable to close the aperture of the tube but does close the chimney well. The tube orientation could not be related to any constancy. Leptoconchus striatus RÜPPELL, 1835 has a post-larval free-living stage. The young shell sinks down actively in the coral host. Communicating burrows of L. striatus could be the result of young animals developing around their mother shell. Diagnosis are proposed for the genera Magilus MONTFORT, 1810 and Leptoconchus RÜPPELL, 1835. Magilus sowerbyi nomen novum is proposed in place of M. costatus SOWERBY in REEVE, 1872. The genus Magilus includes six recent species: M. antiquus, M. cumingii, M. japonicus, M. lankae, M. m.icrocephalus, and M. sowerbyi. M. japonicus and M. lankae could be subspecies of M. antiquus. « Magilus serpuliformis VONLAIN » in DERANIY AGALA (1968) must be related to the Leptoconchus includes fourteen recent species: L. cumingii, L. cuvieri, L. djedah, L. ellipticus, L. expolitus, L. globulosus, L. lamarckii, L. maillardi, L. noumeae, L. rostratus, L. rueppellii, L. serratus, L. solidiusculus, and L. striatus. L. peronii is a nomen oblitum and L. oblongus a nomen nudum. L. schrenckii and L. tenuis are to be considered synonyms of L. striatus. Under the names L. ellipticus, L. expolitus, and L. rostratus, maybe there are in each case two different species. Coralliobia fimbriata, C. robillardi, and C. smithi, which have been assigned to the genera Magilus and/or Leptoconchus, must be reported to the genus Coralliobia. |
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