270 



ANALYTICAL INDEX. 



CHAPTER I. continued. 



Found about the mouth of the Forth, . . PAGE 32 



Usual colour different shades of brown or purple, . . ib. 



Found floating like balls of various shapes, . . 33 



Ampuda Poliana, ...... ib. 



Mr Merrilees of Lerwick, ..... ib. 



Plates I., II., III., IV., V., VI., VII., VIII., explained 34 



2. HOLOTHURIA FUSUS, The Spindle Sea Cucumber or Sweepwater, 35 



Specimen from the north-eastern part of the Forth, . . ib. 



Size, form, and peculiarities, .... 36 



After sunset shoots out eight luxuriant, arborescent tentacular organs, 37 



The tentacula seem a vegetable product, ... 39 

 The beautiful arborescent apparatus becomes a wide shallow funnel 



at night, ....... ib. 



On the slightest shock, or intrusion of light, the whole apparatus is 



quickly withdrawn, . . . . .40 



The Tentacula distended by a fluid, ... ib. 

 Use of the tentacula uncertain probably designed for an alimen- 

 tary purpose, ...... 41 



The intestine always full of a soft brown or yellowish matter, . 42 

 Quantity of animal matter in a Holothuria equivalent to what is in 



a rat or weasel, ...... 43 



DelleChiaie, . . . .. . 44 



Food of the Holothuria still problematical, . . . ib. 



Body covered by flexile, extensile papillae not with a tube, 46 

 When quiescent, the skin resembles shagreen ; prolonged, the body 



is invested by a woollen-like coat, ... ib. 

 The suckers overspread the whole skin when disengaged each has 



an independent action, .... ib. 



Advances head foremost the fore and hind suckers alternately re- 

 laxing, ...... 47 



Of nocturnal habits, ...... 48 



Holothuria pencillus must be expunged from the Systema Nature?, 49 



After entire mutilation new tentacula produced, . . 51 



Propagation, ...... ib. 



None of the spawn proved fertile, . . . .54 



The whole organic mass separated from the body, death in consequence, 55 

 Such mutilation ascribed to accidental causes, . . .56 

 Holothuria fusus found about Orkney and Shetland, and the estuary 



of the Forth, ..... 57 



Professor Goodsir, ..... ib. 



Species of the Holothuria multiplied beyond the truth, . . 58 



Of various colours, ...... ib. 



