. Handbook of zoology with examples from Canadian species, recent and fossil [microform]. Zoology; Invertebrates; Zoologie; Invertébrés. 150 I'KOVINC:!': linicsloiics. or iIk'sc, the most (•h:ira("tL'risti(: arc those ot the genera lifUcrophov .iiul Cwtolilcs^ species of which are foiiiid from the Lower Sihiriaii to tlie (larhoniferoiis inclusive (I'ig. 17S). 'I'he curious and somewhat anoma- lous shells of the genera Maclurea and ^ are also sujiposcd hy some pahvjontologists to belong to this order. The lantlufuv or violet sjiails are regarded as an ahernnU fami
. Handbook of zoology with examples from Canadian species, recent and fossil [microform]. Zoology; Invertebrates; Zoologie; Invertébrés. 150 I'KOVINC:!': linicsloiics. or iIk'sc, the most (•h:ira("tL'risti(: arc those ot the genera lifUcrophov .iiul Cwtolilcs^ species of which are foiiiid from the Lower Sihiriaii to tlie (larhoniferoiis inclusive (I'ig. 17S). 'I'he curious and somewhat anoma- lous shells of the genera Maclurea and ^ are also sujiposcd hy some pahvjontologists to belong to this order. The lantlufuv or violet sjiails are regarded as an ahernnU family of this order. 'I'hey have spiral shells and lloat hy means of a modified cellular operculum which huovs them up. They are mostly tropical ; hut shells of liinthina frai:^tli<i are sometimes cast on our Atlantic coast (l''ig. 17! ^ri^^^^ Fin- 17!>.— /—Float. </—Uilla. o-()va. iii Order 3. Oi'isthohkancuiata. The Nudibranchiate, or naked gilled division of this order, is represented on our coasts by many species of sea-slugs with soft slimy bodies and destitute of shells. Many of them are curious and beautiful when alive, but they lose all their charms when seen as museum speci- mens. I figure as an illustration Doris planulata (Stimpson), from the Bay of P'undy. It is a little /Jk. 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
