ANALYTICAL INDEX. 



271 



CHAPTER I.— continued. 



Holotlmria fasus readily covers itself with extraneous matter, page 59 

 Doubtful if any individual of the species is exempted from mutilation, 61 

 Some of Delle Chiaie's specimens survived loss of intestines fifteen days, ib. 

 If the intestines are evacuated by the anterior extremity regenera- 

 tion commonly replaces them ; if by the posterior, death in- 

 variably ensues, ..... 62 



The nature of what is called Trepang^ or Beche de Mer, so perplex- 

 ing to naturalists, perhaps determined, . . ib. 

 Propagation, . . . . . . .63 



Bohadsch, Tyermaux, Bennet, Beale, ... ib. 



Scottish liolothurioe free of offensive odour — Bosc, . . 64 



Most favourable abode of the Holothuria fusus is in deep water, 65 



Plates VIII., IX., X., XI., XII., explained, ... 66 



5 .'?. Holothuria Scotica, ..... 67 



History of the Holothuria imperfectly understood, . . ib. 



Difficulty of identifying the different species, . . 68 

 Specimen described, . . . . . .69 



Lost tentacula restored, ..... 70 



Habits the same as the fusus, . . . . .71 



Two other specimens, white, . . . . 72 



Plates XII., XIII., explained, . . . . ib. 



§ 4. Holothuria Bodotri^e, — Holothuria CEcnus, . . ib. 

 Professor Forbes on Echinodermata, . . . . ib. 

 More irregular shape than the preceding species, . . 73 

 Form and organs described, . . . . . ib. 

 Tentacula and antennulre not so luxuriant as the fusus, . ib. 

 Little difference in its habits, . . . . . ib. 

 Some specimens pure white, others yellowish brown, . 74 

 Dwells in the Forth, from Inch Keith to Mar Bank, . . ib. 

 Divides itself into two or more parts spontaneously — each regener- 

 ating the defective organs, . . . . ib. 

 Mode of progression solved, .... ib. 

 No precise rule governs the time of division, . . .75 

 Before division the animal assumes the figure of a sand-glass, 77 

 Renovated tentacula of the purest white, . . .78 

 Food of the animal yet undiscovered, ... ib. 

 Plate XIV., explained, ..... ib. 



§ 5. Holothuria phantapus, . . . . . 79 



Most remarkable of the whole species, . . . . ib. 



