The Partane--Its character defended--Crustaceous demons--The wolf and the lamb--Interesting anecdote--Reason and instinct--Anecdote of the Shore crab--'The creature's run awa''--A crustaceous performer--The Fiddler crab--A little prodigal--Singular conduct of the Shore crab--The minute Porcelain crab--_Maia squinado_--_Hyas araneus_--_Maia_ and _C. mænas_--Anecdote--The common Pea crab--Pinna and Pinnotheres--The Cray fish--Masticatory organs of crabs--Fishing for crabs--Crab fishers, 63 CHAPTER V. HERMIT CRABS. Enthusiastic students of nature--Aristocratic Hermit crabs--Swammerdam--Hermit crab and its habits--Anecdote--The Hermit in a fright--Soldier crab and Limpet--A crustaceous Diogenes--Prometheus in the tank--The martyr Hermit crab--The author's pet Blenny--Anecdote, 89 CHAPTER VI. EXUVIATION OF CRUSTACEA (THE PHENOMENA OF CRABS, ETC., CASTING THEIR SHELLS). The Tower of London--A crustaceous armory--The author's experience on the subject--Reamur and Goldsmith--Rejected shells of crabs--Anecdote--Hint to the young aquarian--Exuviation described from personal observation in several instances--Renewal of injured limbs--Frequency of exuviation--Effect of diet on crustacea--Exuviation arrested--Exuviation of the Hermit crab--How the process is effected, 109 CHAPTER VII. PRAWNS AND SHRIMPS. Habits of the Prawn--The Common Shrimp--How to catch shrimps--Conclusion, 135 CHAPTER VIII. ACORN-BARNACLES--SHIP-BARNACLES. The Common Barnacle described--Exuviation of the _Balani_--Anecdote--The Ship Barnacle--Barnacle Geese, 143 CHAPTER IX. PHYLLODOCE LAMINOSA (THE LAMINATED NEREIS). A rainy day at the sea-shore--Laminated Nereis--Its tenacity of life--Its unsuitableness for the aquarium--How the young annelids are produced--Evidence of a French naturalist, 151 CHAPTER X. THE FAN-AMPHITRITE. Its renewal of mutilated organs--How to accommodate this annelid in the tank--The 'case' of the Fan-Amphitrite, 159 CHAPTER XI. THE COMMON MUSSEL. Dr. Johnson and Bozzy--Habits of the Mussel--Marine 'at homes'--The Purpura and its habits--Enemies of the Mussel--Anecdote--Construction of the beard (or Byssus)--Author's experience--Anecdote of the mussel--Muscular action of its foot--Threads of the beard--The bridge at Bideford--Anecdote--The Mussel tenacious of life--The beard not poisonous--M. Quatrefage--Mussel beds of Esnandes--Branchiæ of the Mussel--Food of this bivalve, 163 CHAPTER XII. TEREBELLA FIGULAS (THE POTTER).