. Handbook of zoology with examples from Canadian species, recent and fossil [microform]. Zoology; Invertebrates; Zoologie; Invertébrés. Fiy. serim-la, Stimpson. «—Natural size. 6—Mauiiifiod. f—Aperture ma^unificil, showing ovarian pouclies. Stimpson, which is fretiuent on shells and stones. The anterior part, when complete, has two auriculate expansions at the sides, apparently to accommodate the ova. Serpida vermicularis, which has a round tube of similar size, is apparently less common. Several species of Spirorbis occur on shells, stones and sea-weeds, and are distinguished
. Handbook of zoology with examples from Canadian species, recent and fossil [microform]. Zoology; Invertebrates; Zoologie; Invertébrés. Fiy. serim-la, Stimpson. «—Natural size. 6—Mauiiifiod. f—Aperture ma^unificil, showing ovarian pouclies. Stimpson, which is fretiuent on shells and stones. The anterior part, when complete, has two auriculate expansions at the sides, apparently to accommodate the ova. Serpida vermicularis, which has a round tube of similar size, is apparently less common. Several species of Spirorbis occur on shells, stones and sea-weeds, and are distinguished from the last mentioned species by their regularly spiral forms. 6". borealis is common on sea-weeds, and has a round tube. S. htcida is smaller and coiled in the. 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 Dawson, J. W. (John William), Sir, 1820-1899. Montreal : Dawson
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Keywords: ., bookcentury1800, bookdecade1880, booksubjecti, booksubjectzoology
