CONTENTS 



OF THE 



EIGHTH VOLUME 



BY PROFESSOR ALEXANDER AGASSIZ. 



PAGE 



Notes on the Embryology of Starfishes (Tornaria) .... 240 

 Ox the Young Stages of a few Annelids 303 



BY S. O. H. BAILEY. 



On the Mineralogy of New York Island 185 



BY THOMAS BLAND. 



On the Family Proserpinacea, with a description of a New Species of the 



Genus Proserpina . 14 



Remarks on Classifications of North American Helices by European Au- 

 thors, and especially by H. and A. Adams and Albers . . . 17 



Note on certain Insect Larva-Sacs, described as Species of Valvatae . 144 



Notes on certain Terrestrial Mollusca, with descriptions of New Species 155 



BY PROFESSOR THEODORE GILL. 



Note on the Family of Myliobatoids, and on a New Species of Aetobatis . 135 

 On a Remarkable New Type of Fishes allied to Nemophis .... 138 

 On a New Family Type of Fishes related to the Blennioids . . .141 

 Explanation of Plate III 300 



BY AUGUSTUS R. GROTE. 



Remarks on the Sphingidae of Cuba, and description of a New Species of 



Ambulyx from Brazil 195 



BY AUGUSTUS R. GROTE AND COLEMAN T. ROBINSON. 



Lepidopterological Contributions . . 351 



Notes on the Lepidoptera of America, No. 1. ..... . 432 



BY TBE HON. RICHARD HILL. 



Notes on the Natural History of the Scorpion 387 



Additional Note on the Natural History of the Scorpion .... 486 



BY PROFESSOR C. H. HITCHCOCK. 



escriptton of a New Reptilian Bird from the Trias of Massachusetts . 301 



