The American Naturalist, Том 16Essex Institute, 1882 |
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Стр. vii
... genus of Tillodonta , 156 ; A great de- posit of Mud and Lava , 157 ; Invertebrate fossils from the Lake Valley district , New Mexico ' 158 ; Insects of the Amyzon shales of Colorado , 159 ; The future of Geology , 160 ; Marsh on the ...
... genus of Tillodonta , 156 ; A great de- posit of Mud and Lava , 157 ; Invertebrate fossils from the Lake Valley district , New Mexico ' 158 ; Insects of the Amyzon shales of Colorado , 159 ; The future of Geology , 160 ; Marsh on the ...
Стр. 2
... genus , tactile organs are wanting , and eyes are fully developed . If genera without eyes , and another genus with them , are found living under the same conditions , the infer- ence is obvious that the conditions cannot have caused ...
... genus , tactile organs are wanting , and eyes are fully developed . If genera without eyes , and another genus with them , are found living under the same conditions , the infer- ence is obvious that the conditions cannot have caused ...
Стр. 3
... genus , as defined by Mr. Put- nam in his " Synopsis of the family Heteropygii , " published in the Annual Report of the Peabody Academy of Science for the year 1871. The description of the genus should be amended , however , by the ...
... genus , as defined by Mr. Put- nam in his " Synopsis of the family Heteropygii , " published in the Annual Report of the Peabody Academy of Science for the year 1871. The description of the genus should be amended , however , by the ...
Стр. 5
... genus either has a shorter subterranean history than Amblyopsis , or , at any rate , has remained less closely confined to subterranean situations ; and that in either case the occurrence of eyes , partial absence of sensory papillæ and ...
... genus either has a shorter subterranean history than Amblyopsis , or , at any rate , has remained less closely confined to subterranean situations ; and that in either case the occurrence of eyes , partial absence of sensory papillæ and ...
Стр. 55
... genus which I called Verrillia , in honor of Professor Verrill , of Yale College . The characters of this sub - genus were defined as follows : " Polypidon linear - elongate , round or ovate in cross section . Axis round , slender ...
... genus which I called Verrillia , in honor of Professor Verrill , of Yale College . The characters of this sub - genus were defined as follows : " Polypidon linear - elongate , round or ovate in cross section . Axis round , slender ...
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