MAKE A MEME View Large Image Conchological Manual Fig 12.png Fig 12 Dentalium Elephantinum This has an opening at the anterior termination a called the aperture The opening at the posterior end p is named a fissure or perforation The ribs running along the sides of the ...
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Keywords: Conchological Manual Fig 12.png Fig 12 Dentalium Elephantinum This has an opening at the anterior termination a called the aperture The opening at the posterior end p is named a fissure or perforation The ribs running along the sides of the shell are longitudinal or radiating And the lines round the circumference are lines of growth or concentric ”each one having in succession at earlier stages of growth formed the aperture They are described as concentric or transverse gutenberg A Conchological Manual 43417 1842 George Brettingham Sowerby II 1812 “1884 PD-old-100 A conchological manual 1842 Dentalium elephantinum
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