CONTENTS. 



PAGE 



The Converse Relation between Ciliary and Neuro-Muscular 



Movements. By Alfred G. Mayer i~25 



Effect of Different Temperatures on the Medusa Cassiopea, 

 with Special Reference to the Rate of Conduction of the 

 Nerve Impulse. By E. Newton Harvey 27-39 



The Influence of Regenerating Tissue on the Animal Body. 



By Charles R. Stockard 41-48 



Cradactis variabilis: An Apparently New Tortugan Actinian. 



By Charles W. Hargitt 49~53 



On Adaptations in Structure and Habits of Some Marine Ani- 

 mals of Tortugas, Florida. By J. F. McClendon S5-62 



Behavior of the Loggerhead Turtle in Depositing its Eggs. 



By S. O. Mast 63-67 



X^ertain Reactions to Color in the Young Loggerhead Turtle. 



By Davenport Hooker 69-76 



A Contribution to the Anatomy and Development of the Pos- 

 terior Lymph Hearts of the Turtles. By Frank A.Stromsten 77-87 



Polycitor (Eudistoma) mayeri nov. sp., from the Tortugas. 



By Dr. R. Hartmeyer, Ph.D 89-93 



Reaction to Light and Other Points in the Behavior of the 



Starfish. By R. P. Cowles 95-110 



The Anatomy of Pentaceros reticulatus . B\- D. H. Tennent 



and V. H. Keiller 111-116 



Echinoderm Hybridization. By David Hilt Tennent 11 7-1 5 2 



