xii CONTENTS. 



PAGE 



EyeofPecten Part 3 230 



Digestive Organs of the Dihranchiate Cephalopoda .. .. „ 433 



Accessory Generative Organs of Terrestrial Mollusca . . „ 435 



Organization of Tethys fimhriata „ 437 



Olfactory Organs and Nervous System of the Mollusca . . Part 4 583 



Nev3 and Rare Cephalopoda , 586 



Giant Squids >, 586 



Ink-bag of the Cephalopoda „ 586 



Regeneration of Lost Parts in the Squid „ 587 



Enemies of Ostreiculture „ 587 



Mollusca of the Gulf of Mexico „ 587 



American Cephalopoda Part 5 724 



Simple Eyes of some Mollusca „ 724 



Vessels of the Ink-hag of Cephalopoda Part 6 87G 



Chemical Composition of the Ink of Cephalopoda .. . . „ 877 



Development of Neritina fluviatilis ,, 877 



Locomotor Organs of Cyclostoma elegans „ 878 



Innervation of tJie Heart, and Influence of Poisons on 



Lamellibranchiata „ 879 



Infusoria Parasitic in Cephalopods „ 902 



MoUuscoida. 



Tunicata of the ' Challenger ' Expedition Part 1 29 



North Polar Polyzoa „ 30 



Metamorphosis of the Bryozoa „ 30 



Segmental Organs of the Endoproct Bryozoa Part 2 233 



Relationship of the Genus Heteropora to Monticulipora . . „ 233 



Tunicata of the ' Challenger' Expedition, 4'C Part 3 438 



Budding of Pyrosoma „ 438 



Queensland Bryozoa „ 439 



New Zealand Fossil Bryozoa „ 439 



Fossil Chilostomatous Bryozoa from Australia „ 440 



Tunicata of the ' Challenger ' Expedition Part 4 589 



Organization of the Simple Ascidians „ 590 



Develojjment of Lithonephria „ 592 



Anatomy of Pyrosorrui , 593 



Australian Bryozoa „ 593 



Tertiary Bryozoa, ^c, from Reggio (^Calabria) „ 594 



" Olfactory Tubercle " of Simple Ascidians Part 5 726 



Organization of the Simple Ascidians „ 726 



Cwlom of the Ascidians ,, 727 



Metamorphosis of Pcdicellina ,, 727 



Development of DoUolum Part 6 879 



CelleporcB from the ' Challenger ' ,, 8S0 



*■ Cliallenger' Bryozoa from Marion Islands ,, 881 



Fossil Diastoporidm „ 882 



Carboniferous FenestellidcB „ 882 



Arthropoda. 



Colfiur-Sense in Insects and Crustacea Part G 882 



