The Canadian Naturalist and Quarterly Journal of Science: With the Proceedings of the Natural History Society of Montreal..., Том 1B. Dawson, 1857 |
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Стр. 30
... head , like the cuttle - fish ( Cephalopoda ] . 2. Those which creep on a flattened disc or foot , like snails ( Gas- teropoda ) . 3. Those which have no distinct head , and areenclosed in a bivavle shell , like the clams ( Acephala ) ...
... head , like the cuttle - fish ( Cephalopoda ] . 2. Those which creep on a flattened disc or foot , like snails ( Gas- teropoda ) . 3. Those which have no distinct head , and areenclosed in a bivavle shell , like the clams ( Acephala ) ...
Стр. 31
... head , for swimming ( Pteropoda ) . The class of ACEPHALA Contains three orders : a . Those having shells of two valves ( bivalves , ) like the clam ( Lamellibranchiata ) . b . Those having two unequal valves , and furnished with ...
... head , for swimming ( Pteropoda ) . The class of ACEPHALA Contains three orders : a . Those having shells of two valves ( bivalves , ) like the clam ( Lamellibranchiata ) . b . Those having two unequal valves , and furnished with ...
Стр. 45
... heads furnished with powerful arms for capturing their prey , ruled with unlimited sway over all the less formidable ... head , back and tail were covered . The same remark applies to all the trilobites . It is only the shelly upper ...
... heads furnished with powerful arms for capturing their prey , ruled with unlimited sway over all the less formidable ... head , back and tail were covered . The same remark applies to all the trilobites . It is only the shelly upper ...
Стр. 46
... head is composed above of three pieces , the two outer portions called cheeks , and the central the glabella.— The latter is but slightly convex in this species , but in others , it is elevated and variously lobed . The sutures or lines ...
... head is composed above of three pieces , the two outer portions called cheeks , and the central the glabella.— The latter is but slightly convex in this species , but in others , it is elevated and variously lobed . The sutures or lines ...
Стр. 47
... head to the tail . The thorax consists of thirteen segments , each one of which is flattened to a sharp edge on the anterior side , near its extremity , and slightly curved forward , as in Isotelus gigas . In perfect specimens , the ...
... head to the tail . The thorax consists of thirteen segments , each one of which is flattened to a sharp edge on the anterior side , near its extremity , and slightly curved forward , as in Isotelus gigas . In perfect specimens , the ...
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abundant animal appearance Arctic Arctic Fox ARTICLE Audubon Azoic beak bear beds beneath birds body breeding brown brownish called Canada Carboniferous colour common common Snipe continent coral covered deer deposit Devonian dorsal valve Duck dusky eggs Esox feathers feet female fins fish formation fossil frequently genus geological grey grizzly bear ground habits hair head horns hunter inches Inhabits insects Lake lamellæ larvæ legs length limestone Lower Canada Lower Silurian male miles moose Mountains musk ox nearly neck nest North America northern Nova Scotia observed Ottawa Partridge portion Protichnites pupa quadrupeds rays Red Fox remains resembling River rocks sandstone season seen shell shore side skin Snipe snow sometimes species specimens spot striæ surface tail teeth thickness tipped tree Trenton Trenton Limestone trilobites upper ventral valve wings winter wolf woods yellowish young