Statocyst of Lobster, 24; of Mysidacea, 47 Statolith, 47 Stebbing, T. R. R.: on Land Crabs, 190; on habits of _Cirolana_, 219 Steinkrebs, 242 Stenopidea, 59; fossil, 267 _Stenorhynchus_, 97 Sternum, 9 Stevenson, R., on the Gribble, 254 Stomach of Lobster, 16 Stone Crab, 61, 94 Stomatopoda, 64; larvæ, 80; habits, 104; fossil, 266 Stridulating organ of _Ocypode_, 105 Subterranean Crustacea, 184 Swimmerets of Lobster, 6, 10 Swimming Crabs, 90; sand-burrowing, 99; used for food, 249 Symbiosis, 207 Syncarida, 45, 181; fossil, 264 Tail-fan of Lobster, 6 Talitridæ, 107 _Talitrus_: habits, 107; terrestrial Species, 189 Tanaidacea, 50 Tanganyika, Lake, Crustacea of, 183 Taste, sense of, in Lobster, 25 _Telphusa_, 180 Telson of Lobster, 6 Tergum, 9 Testis of Lobster, 27 Thalassinidea, 61; habits, 103 _Thaumastocheles_, 130, 132 Thompson, J. Vaughan: discovery of metamorphoses of Crustacea, 67; on larvæ of Cirripedia, 83; on development of _Sacculina_, 232 Thoracica, 43 Thorax of Lobster, 7 Thread-worms, 252 Touch, sense of, in Lobster, 22 Tracheæ, 204 Tracheæ, pseudo-, 202 Trapeziidæ, 211 _Triarthrus_, 258 Trilobites, structure and history, 258 _Tubicinella_, 209 _Turrilepas_, 261 Turtles: Barnacles on, 209; Gulf-weed Crab on, 209 Underground Crustacea, 184 Uropods of Lobster, 6 Venus's Flower-basket, Crustacea in, 210 Water-fleas, 37, 165 Weismann on parthenogenesis of _Cypris_, 172 Well Shrimp, 184 Westwood, J. O., on development of Land Crabs, 192 Whales, Barnacles on, 209 Whale-food, 138 Whale-lice, 56; habits, 224 White-clawed Crayfish, 242 Willey, A., on breeding of Robber Crab, 199 Williamson, H. C., on habits of Lobster, 25 Wood-boring Crustacea, 253 Woodlice, 51; development of, 79; habits and structure, 199; distribution of, 206; destructive in gardens, 253 Worms: and Hermit Crabs, 215; Copepoda parasitic in, 230 Zoëa of Shore Crab, 69; of Caridea, 73; of Porcelain Crab, 70; of _Munida_, 71; of _Penæus_, 75; of _Sergestes_, 75, 148; of Robber Crab, 199 PRINTED BY BILLING AND SONS, LTD. GUILDFORD * * * * * Transcriber's note: