CONTENTS. IX 



32.')-6. — Family SALMONiniE, observations on their classification and 

 gcof^raphical distribution, 326. — Showing plan of Sujjrcrae Intelligence, 

 327-30. — Salmo fontinalis, 330-31. — S. namaycush, observations upon, 



331-3 iS. siscmoct, Agass., 333-36. — Coregonus, observations on the, 



336-9. — C. chqKiformis, 339-42. — C albus, 342-4. — 6'. sapidissimus, 

 Agass., 344-4S. — C. latior, Agass., 348-51. — C. quadrilateralis, 351-2. — 

 Family CyppaxoiDS, 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. Forsteriamis, Agass., 358-60. — C 

 atirora, Agass., 3G1-3. — Albuenus, 363. — A. rubellus, Agass., 364-6. 

 Gobio 2)lumbeus, Agass., 366-8. — Leucisciis frontalis, Agass., 368-70. — L. 

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

 freshwater fishes of North America different from those of Europe ; 

 I^ake Sviperior and the lakes north of it constitute a distinct zoological 

 district, 373-5. — These fishes must haA^e been created where they now 

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



VII. 



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



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

 Crotophoriis, sp., probably identical with C. tergcminus, 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. 

 BT 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. THABDEUS WILLIAM HARRIS. 



Pontia oleracea, 386. — Deilcphila Chamancrii, 387-8. — Smerinthus mo- 



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



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 



