Image from page 277 of “West American shells; a description in familiar terms of the principal marine, fresh water and land mollusks of the United States found west of the Rocky Mountains, including those of British Columbia and Alaska ..” (1904) – more Marine Life goodness curated by www.SardineRunPE.co.za
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Title: West American shells; a description in familiar terms of the principal marine, fresh water and land mollusks of the United States found west of the Rocky Mountains, including those of British Columbia and Alaska ..
Year: 1904 (1900s)
Authors: Keep, Josiah, 1849-1911
Publisher: San Francisco, The Whitaker & Ray company (incorporated)
Contributing Library: Smithsonian Libraries
Digitizing Sponsor: Smithsonian Libraries
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Text Appearing Before Image:
re dark brown. The figure shows theappearance of a small specimen, for they some-times grow to a length of 75mm. This speciesthrives especially in the far north, but it extendssouthward to Catalina Island. The soft parts aresalmon colored, at least in the northern specimens.It is eaten raw by the natives of the northwestcoast. Amicula palldsii, Midd., the Concealed Chiton,has a shell nearly concealed by the hairy mantle,which is nearly circular, and which covers the backof the animal except for eight small holes. Thismantle, or girdle, bears unequal bunches of red-dish hairs. Its length is 67mm. It lives in farnorthern waters. Cryptochiton sielleri,Midd., the Giant Chi-ton, Figure 303. Weclose our descriptionsof West AmericanShells, with an accountof this remarkable mol-lusk. The figure repre-sents only one of theFig 303 eight white valves, all of which are wholly concealed under the hard,gritty, reddish-brown mantle. These single valvesare found much more often than the complete ani-
Text Appearing After Image:
PIERCED SHELLS AND CHITONS 271 mal, and from their peculiar shape are oftencalled Butterfly-shells. The whole creature is ahuge and heavy affair, six or eight inches in length.When properly cleaned and dried the mantle andvalves much resemble a toy boat. This huge Chi-ton lives all along the western coast, ranging fromJapan to the Santa Barbara Islands. Completespecimens are seldom collected from the shore, forit lives just below the lowest tide-mark. The highest class of mollusks, the Cephalopods,are rather poorly represented on our coast, thoughone species, at least, exists in great numbers. Shellsof a Paper Nautilus, Argonauta pacifica, Dall, aresometimes washed ashore on the Santa BarbaraIslands. A much more common species is the Oc-topus, or Devilfish, of our coast. Octopus punctd-tus, Gabb, small specimens of which are frequentlycaptured alive in little tide pools, though in theopen sea it grows to startling dimensions. Ommdstrephes tryoni, Gabb, the common Squidof Monterey, is
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