CONTENTS. IX 



325-6. Family SALMONTDJB, observations on their classification and 

 geographical distribution, 326. Showing plan of Supreme Intelligence, 

 327-30. Salmo fonthtalis, 330-31. X. namaycush, observations upon, 

 331-3. ,S'. siaimi'r', Asrass., 333-36. COREGONUS, observations on the, 

 336-9. C. cli>ij(' : formis, 339-42. C. albus, 342-4. C. sapidissimus, 

 Agass., 344-48. C. latior, Agass., 348-51. C. qitadrilateralis, 351-2. 

 Family CYPRIXOIPS, distribution, 352-3. RHINICHTHYS, Agass., 353-4. 

 R. marmoratus, Agass., 354-6. CATOSTOMUS, difficulties in the study of 

 this genus, 356-7. C. aureolus, 327. C. Forsterianus, Agass., 358-60. C. 

 aurora, Agass., 361-3. ALBURNUS, 363. A. rubelhts, Agass., 364-6. 

 Gobio plwribeus, Agass., 366-8. Leutiscus frontalis, Agass., 368-70. L. 

 gracilis, Agass., 370-2. L. Hudsonius, 372-3. General observations; all 

 freshwater fishes of Xorth America different from those of Europe ; 

 Lake Superior and the lakes north of it constitute a distinct zoological 

 district, 373-5. These fishes must have been created where they now 

 live, 376. Deductions from this fact, 377 246-377 



VII. 



DESCRIPTION OF SOME NEW SPECIES OF REPTILES FROM THE REGION OF LAKE SUPERIOR. 



Hylodes maculatus, Agass., 378-9. Rana nigricans, Agass., 379-80. 

 Crotophorus, sp., probably identical with C. tergeminus, 381. Further 

 list of reptiles of Lake Superior ; large size of some species ; turtles 

 not found on northern shores of the lake, 382 378-382 



VIII. 



REPORT ON THE BIRDS COLLECTED AND OBSERVED AT LAKE SUPERIOR. 



BY J. E. CABOT. 



Striking scarcity of birds and quadrupeds ; causes of this, 383-4. List 

 of species, 384-5 383-385 



IX. 



DESCRIPTIONS OF SOME SPECIES OF LEPIDOPTERA, FROM THE NORTHERN SHORES OF 



LAKE SUPERIOR. 



BY DR. THADDECS WILLIAM HARRIS. 



Pontia oleracea, 386. Dcilephila Chamtenerii, 387-8. Smerinthus mo- 

 desta, 388-9. Hepiolus argenteo-maculatus, 389-90. Arctia partJicnos, 

 390-1. Arctia Americana, 391. Ennomos macularia, 392. List of Lep- 

 idopterous insects, taken by Professor L. Agassiz on the northern shore 

 of Lake Superior, 392-4 386-394 



X. 



THE ERRATIC PHENOMENA ABOUT LAKE SUPERIOR. 



The most minute and careful investigation of drift by the glacialists ; 

 whereas their opponents simply deny, 395. The various erratic basins 



