ANALYTK A I IN nKX. 271 



fllAITKK I. tontivxd. 



I! !t/iuriafunu readily coven itself with extraneous matter, PAOB 59 



Doubtful if ajiv individual of the specie* is exempted from mutilation, 61 



8omeofDelleChi*ie 1 ifp e din l MiurTirirfkofinttiBefifleen<Li^ ib. 

 If the intestine* are evacuated by the anterior extremity regenera- 

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

 variably ensue*, ..... 



The nature of what if called Trepcmy, or Bed* de Jkfer, to perplex- 

 ing to naturalist*, perhap* determined, . . ib. 

 Propagation, ....... 68 



Bohadsch, Tytrmaux, Bennet, Beale, ib, 



Scottish Uolothuriw free of offeniive odour BOM, . . 64 



Mo*t favourable abode of the Holothnria fusu* U in deep water, 65 



Plate* VIII., IX., X^ XL, XIL, explained, ... 66 



} S. HOLOTBCUA SCOTICA, ..... 67 



Ilittory of the Holothnria imperfectly understood, . . ib. 



Difficulty of identifying the different specie*, . . 68 

 Specimen described, . . . . . .69 



Lost tcntacnla restored, ..... 70 



Habita the same as the fusus, ..... 71 



Two other specimens, white, .... 73 



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



4. HOLOTHURIA BoDOTRIjK, HoLOTIICRIA CEcXCS, . . ib. 



Professor Forbes on Echinodermata, . . . ib. 

 More irregular shape than the preceding specie*, . . 73 

 Form and organ* described, ..... ib. 

 Tentacula and antcnnula- not so luxuriant a* the fusus, . ib. 

 Little difference in its habit*, . ". . . ib. 

 Some specimens pure white, other* yellowish brown, . 74 

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

 Divide* itself into two or more part* spontaneously each regener- 

 ating the defective organ*, . . . 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. HOLOTHOUA FHAMTAPD*, . 79 



Most remarkable of the whole ipecies, ib. 



