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SNAIL, THE VIOLET SEA., Janthina fragilis - - 115 



SNAIL, WHITE-LIPPED, ANIMAL OF THE - 27 



SNAIL, WHITE-LIPPED, SHELL OF THE - - 26 



SNAIL WITHOUT AN EXTEKNAL SHELL, Limax agrestis - - 27 



SNAILS, FOUR SPECIES OF MINUTE LAND - - 30 



SNAILS, JAWS OF LAND, Polygyra tliyroides and Limax flavus - 43 



SNAILS, LEFT-HANDED POND, Physa gyrina - 13 



SNAILS, ORB, THE FOOT OF EACH OF FOUR SPECIES - - 38 



SNAILS, WHERE POND, DELIGHT TO DWELL - 24 



SPIRULA L^EVIS - - 135 



SQUID, A GIANT, Architeuthis princeps - 139 



SQUID, ANATOMY OF A FEMALE, Loligo pcalii - 130 



SQUID, BEAK OF A - 128 



SQUID, DIAGRAM OF THE BODY OF A, Loligo pealii - - - - 127 



SQUID, PEN OR INTERNAL SUPPORT OF A - - 129 



SQUID, THE _ 137 



SQUID, SUCKER OF A, Loligo pcalii - - - 128 



STROMBUS GIGAS, SHELL AND ANIMAL OF - - - - 102 



SUCCINIA OVALIS, CRAWLING - - 31 



TAGELUS GIBBUS, FOOT AND SIPHONS OF 67 



TEETH OF A POND SNAIL, Limncea caperata - - 43 



TEETH OF A WATER BREATHER, Amnicola limosa - .44 



TEETH, DIAGRAM OF THE, ON THE MOLLUSCAN EADULA - - 42 



TELLEN SHELL, AN ENGLISH, Gari vespertina - 71 



TEREDO NAVALIS, ANIMAL OF THE 80 



TIDE, THE BEACH AT Low 60 



TOOTH SHELL, Denialium elephantinum 94 

 TOP-SHELL, THE COMMON, OF THE MEDITERRANEAN SEA, Calliostoma zizyphinum 97 



TRAY OF SPECIMENS 58 



TRIDACNA SQUAMOSA 70 



TRUMPET SHELL, THE, Tritonium tritonis 123 



TUN SHELL AND ANIMAL, Dolium perdix 111 



VELIGER LARVA 93 



VENUS COMB, Murex tenuispina 111 



WATERING-POT SHELL, Aspergillum vaginiferum 81 



WEIRS, FISHERMAN'S 125 



WHELK, THE BLACK, Chrysodomus antiquus 122 



WINKLE SHELL OF THE NEW ENGLAND STATES, Fulgur canaliculatus 91 



YOUNG OF RISSOA COSTATA - 93 



XIV 



