The New Encyclopaedia Britannica, Volume 24Encyclopaedia Britannica, 1974 - Encyclopedias and dictionaries |
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Page 137
... dorsal fin . There are about 10 marine , bottom - dwelling species , which are found almost everywhere except in the Mediterranean and Atlantic . Horned sharks may grow to 1.4 metres ( 5 feet ) long . Their jaws are covered with sharp ...
... dorsal fin . There are about 10 marine , bottom - dwelling species , which are found almost everywhere except in the Mediterranean and Atlantic . Horned sharks may grow to 1.4 metres ( 5 feet ) long . Their jaws are covered with sharp ...
Page 282
... dorsal fin . A representative genus is Ichthyosaurus , from which the group takes its name . Ich- thyosaurus , very fish - like in appearance , is especially well - known from Jurassic deposits . The body was streamlined ; no distinct ...
... dorsal fin . A representative genus is Ichthyosaurus , from which the group takes its name . Ich- thyosaurus , very fish - like in appearance , is especially well - known from Jurassic deposits . The body was streamlined ; no distinct ...
Page 580
... dorsal - fin John Dory ( Zeus faber ) Painting by Karen Allan spines ; and rows of spines on the belly and at the bases of the dorsal and anal fins . A similar species , Z. japonicus , is found in the Pacific . classification and ...
... dorsal - fin John Dory ( Zeus faber ) Painting by Karen Allan spines ; and rows of spines on the belly and at the bases of the dorsal and anal fins . A similar species , Z. japonicus , is found in the Pacific . classification and ...
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