. A manual of zoology. Zoology. 66(} MOLLUSCA near the head, with the resuh that the auriele is forwards, llie aorta Iieliind. The Testacehid;e have the kiiij;s at the posterior end of the body. Oeeasionally streptoneurous eonditioiis oeeur {Chiliiui). The luni;, the most charaelerislic feature of the order, has ahx-ady l)een mentioned (_p. jJO). Many puhnonaies are ai[uatie, Init sinee thev ha\e no i^iUs thcv must oeea- sionaUv eome lo the surfaee to UU the hnii; \\ith air, hut some, whieli li\e at great deptlis in the Swiss hikes and eonsequenllv cannot reach the surl'ace, use the skin and t
. A manual of zoology. Zoology. 66(} MOLLUSCA near the head, with the resuh that the auriele is forwards, llie aorta Iieliind. The Testacehid;e have the kiiij;s at the posterior end of the body. Oeeasionally streptoneurous eonditioiis oeeur {Chiliiui). The luni;, the most charaelerislic feature of the order, has ahx-ady l)een mentioned (_p. jJO). Many puhnonaies are ai[uatie, Init sinee thev ha\e no i^iUs thcv must oeea- sionaUv eome lo the surfaee to UU the hnii; \\ith air, hut some, whieli li\e at great deptlis in the Swiss hikes and eonsequenllv cannot reach the surl'ace, use the skin and to some extent the hmi,' (ov water-lireatliing. Se\eral genera {rhinorlus, rnlniobrjiuhia. Siplioiiaria) ha\-e formed secondary giUs. Sub e>rder 1. h'our retraclih- 'lenlacles, eyes at the tips of tlie second pair. The lli':, a well-developed shell. * many hundred species, Piif'ii,''' Aihatiiia, l^iilliiius, many tro|iieal species. LiM \cii").i:. Shell reduced, conipleleh' concealed in the mantle. * .I/7"e».* Sub Order 11. Only one pair of non- retractile lenlacles, eyes at their base. , ponii snails. /./»;««•(;,* rianorhis.''' Class V. Cephalopoda. The Cephalopoda are distinguished among tlic molIust~s liv their size and Itigh organization. The ntajorit}- measure, including the arms, from. 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 Hertwig, Richard, 1850-1937; Kingsley, J. S. (John Sterling), 1854-1929, ed. and tr. New York, H. Holt
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectzoology, bookyear1912
