LIST OF ILLUSTRATIONS xi 



FIG. PAGE 



40. A, A PIECE OF A TROPICAL SEA-WEED (Halimeda) ; B, A 



CRAB (Huenia protcus) WHICH LIVES AMONG THE FRONDS 

 OF Halimeda, AND CLOSELY RESEMBLES THEM IN FORM 

 AND COLOUR. REDUCED- - no 



41. THE COMMON PORCELAIN CRAB (Porcellana longicornis), 



SLIGHTLY ENLARGED, AND ONE OF THE THIRD MAXIL- 

 LIPEDS DETACHED AND FURTHER ENLARGED TO SHOW 

 THE FRINGE OF LONG HAIRS - - - 113 



42. A DEEP-SEA LOBSTER (Nephropsis stewartii), FROM THE 



BAY OF BENGAL. REDUCED - - 122 



43. Munidopsis regia, A DEEP-SEA GALATHEID FROM THE BAY 



OF BENGAL. REDUCED - - - 123 



44. Thaumastocheles zaleucus. REDUCED - 129 



45. A DEEP-SEA CRAB (Platymaia wyville-thomsoni). REDUCED 131 



46. Polycheles phosphorus, ONE OF THE ERYONIDEA, FEMALE, 



FROM THE INDIAN SEAS - - 133 



47. Eryon propinquiis, ONE OF THE FOSSIL ERYONIDEA, FROM 



THE JURASSIC ROCKS OF SOLENHOFEN - - 135 



48. Conchcscia curta, AN OSTRACOD OF THE PLANKTON, x 40 - 144 



49. Mimonectes loveni. A FEMALE SPECIMEN SEEN FROM THE 



SIDE AND FROM BELOW, SHOWING THE DISTENDED- 

 BALLOON-LIKE FORM OF THE ANTERIOR PART OF THE 

 BODY, x 3 - 145 



50. THE ZOEA LARVA OF A SPECIES OF Sergestes, TAKEN BY 



THE " CHALLENGER " EXPEDITION, x 25 - 146 



51. THE NAUPLIUS LARVA OF A SPECIES OF BARNACLE OF 



THE FAMILY LEPADID/E, SHOWING GREATLY-DEVELOPED 

 SPINES. FROM A SPECIMEN TAKEN IN THE ATLANTIC 

 OCEAN, NEAR MADEIRA, x n - - 147 



52. Calocalanus pavo, ONE OF THE FREE-SWIMMING COPEPODA 



OF THE PLANKTON. ENLARGED - 148 



53. Copilia quadrata (FEMALE), A COPEPOD OF THE FAMILY 



CORYC^ID^E, SHOWING THE PAIR OF LARGE "TELE- 

 SCOPIC " EYES, x 20 - - 153 



54. Phronima colletti, MALE. FROM A SPECIMEN TAKEN IN 



DEEP WATER NEAR THE CANARY ISLANDS, x 12 - 154 



55. THE BRINE SHRIMP (Artemia salina) - 164 



56. Chydorus sph&ricus, A COMMON SPECIES OF WATER-FLEA. 



x 50 - 166 



