CONTENTS. 



PART I. 



Page. 

 Section I. — Physical and zoological. By Francis B. Sumner, Raymond C. Osbum, and 



Leon J. Cole ii 



Chapter I. Introduction ii 



II. Geographical and physical conditions 28 



1. Geography 28 



2. Character of the shores and bottoms 29 



3 . Currents and tides 34 



4. Temperature 38 



5. Salinity 52 



III. Synopsis of zoological data 55 



1. The dredging records 55 



2. The distribution charts 62 



3. The fauna considered according to regions and habitats 64 



4. The average yield of the dredge hauls 77 



5. Explanation of the faunal catalogue 80 



6. Synopsis of faunal catalogue 84 



7 . Comparison of the Woods Hole catalogue with certain others 85 



IV. The faxma considered by systematic groups 91 



1 . Protozoa 91 



2 . Porifera 93 



3. Ccelenterata 95 



4. Platyhelminthes, Nemathelminthes, etc 101 



5. Bryozoa • 102 



6. Echinodermata no 



7. Annulata and Sipunculida 117 



8. Arthropoda 126 



I. Phyllopoda -. 127 



n. Ostracoda 127 



m. Copepoda 128 



IV. Cirripcdia '..... 128 



V. Amphipoda 131 



VI. Isopoda 135 



vn. Schizopoda, Cumacea, Stomatopoda 137 



vin. Decapoda 137 



IX. Xiphosura 142 



X . Pycnogonida 142 



XI. Insecta and Arachnida 143 



9. Mollusca 143 



I. Pelecypoda 146 



n. Amphineura 150 



m. Gastropoda .• 151 



IV. Cephalopoda 155 



10. Adelochorda 155 



1 1 . Tunicata 155 



12. Pisces 160 



13. Reptilia, Aves, Mammalia 169 



5 



