. Bulletin of the British Museum (Natural History). . Serpulorbis arenarius (Lmn6), after Monterosato. Mediterranean. xj. S. arenarius, nuclear whorls. Sicily (Stanford Univ. collection), x 22. S. polyphragma, shell, after Priolo. X J. _ S. (Cladopoda) grandis, shell, after Quoy & Gaimard, somewhat modified from specimens. Indo-Pacific. x J. Subgenus CLADOPODA Gray, 1850 (Text-fig. 15) Coiling planorboid throughout life (rarely lax) ; shells mostly solitary rather than colonial, large in diameter, with the entire coil in contact with the substrate ; colour of shell ivory white to blackish
. Bulletin of the British Museum (Natural History). . Serpulorbis arenarius (Lmn6), after Monterosato. Mediterranean. xj. S. arenarius, nuclear whorls. Sicily (Stanford Univ. collection), x 22. S. polyphragma, shell, after Priolo. X J. _ S. (Cladopoda) grandis, shell, after Quoy & Gaimard, somewhat modified from specimens. Indo-Pacific. x J. Subgenus CLADOPODA Gray, 1850 (Text-fig. 15) Coiling planorboid throughout life (rarely lax) ; shells mostly solitary rather than colonial, large in diameter, with the entire coil in contact with the substrate ; colour of shell ivory white to blackish brown ; sculpture of longitudinal threads that are but weakly intersected by transverse sculpture. Assignable species ; S. (C.) colubrimis (Roding, 1798) [Serpula,]. Indo-Pacific area. (Synonym : V. ater Chenu, 1844.) 5. (C.) grandis (Gray, 1850) [type species : as Cladopoda]. Indo-Pacific. S. (C.) imbricatus (Dunker, i860) [Vermetus]. Japan. 5. (C.) margaritaceus (Chenu, 1844, ex Rousseau MS.) [Vermetus]. Probably West Mexico. (Synonym : V. margaritarum Valenciennes, 1846.). Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original British Museum (Natural History). London : BM(NH)
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