x THE LIFE OF CRUSTACEA 



FIG. 



ig. Apseudes spinosus, ONE OF THE TANAIDACEA. ENLARGED 



20. A WOODLOUSE (Porcellio scaber), ONE OF THE ISOPODA. 



ENLARGED 51 



21. AN AMPHIPOD (Gammarus locusta). ENLARGED - - 53 



22. Two SPECIES OF CAPRELLID^; - 54 



23. Paracyamus boopis, THE WHALE-LOUSE OF THF HUMP- 



BACK WHALE - 55 



24. Meganyctiphanes norvegica, ONE OF THE EUPHAUSIACEA. 



TWICE NATURAL SIZE - -56 



25. LARVAL STAGES OF THE COMMON SHORE CRAB (Carcinus 



manas SEE PLATE IX.) - ... 



26. LAST LARVAL STAGE OF THE COMMON PORCELAIN CRAB 



(Porcellana longicornis SEE FIG. 41, P. 113). x 9 



27. FIRST LARVAL STAGE OF Munida rugosa (SEE PLATE VI.) 



x 10 - - 



28. THE PHYLLOSOMA LARVA OF THE COMMON SPINY LOBSTER 



(Palinurus vulgarisSEE PLATE V.). MUCH ENLARGED 72 



29. LARVAL STAGES OF THE PRAWN Pen&us (SEE PLATE IV.). 



x 45 - 74 



30. NEWLY - HATCHED YOUNG OF A CRAYFISH (Astacits 



fluviatilis). ENLARGED - - - 76 



31. YOUNG SPECIMEN OF AN AFRICAN RIVER CRAB (Potamon 



johnstoni), TAKEN FROM THE ABDOMEN OF THE MOTHER. 

 MUCH ENLARGED - ... 78 



32. EARLY LARVAL STAGE OF A SPECIES OF SQUILLA, PROB- 



ABLY S. dtibia. x 10 80 



33. LARVAL STAGES OF THE BRINE SHRIMP (Artemia salina)- 81 



34. EARLY NAUPLIUS LARVA OF A COPEPOD (Cyclops). MUCH 



ENLARGED - - - - 82 



35. LARVAL STAGES OF THE COMMON ROCK BARNACLE 



(Balanus balanoidessEE, PLATE III.) - - 83 



36. A COMMON HERMIT CRAB (Eupagurus bernhardus) REMOVED 



FROM THE SHELL- - 91 



37. Pylocheles miersii, A SYMMETRICAL HERMIT CRAB - - 94 



38. Callianassa stebbingi (FEMALE), A SAND - BURROWING 



THALASSINID FROM THE SOUTH COAST OF ENGLAND. 

 NATURAL SIZE 



39. THE COMMON SAND-HOPPER (Talitrus saltator), MALE, 



FROM THE SIDE, x 3 



