TANGLE SEA-CUCUMBER 



227 



110LOTI1URJADJE. 



PENT ACT M. 



TANGLE SEA-CUCUMBER. 



( ' itaimaria fucicola. Forbes and Groodsir. 



Specific Character. — Body ovate, rounded, purple, smooth; tentacula deep 

 brown, ovate, pinnate, shortly pedunculate; suckers numerous in each avenue, 

 alternate. 



Holothuriu fucicola, Forbes and Goodsir, Athenaeum, No. (SI 8. 



This species is not uncommon in Bressay Sound, Shet- 

 land, where it is found in seven fathoms water, adhering 

 to the stems of Laminarise. It is about three inches in 

 length when full grown, and is very smooth. When at 

 rest with its tentacula, which are short, and somewhat 

 clavate or sub-globose in form, exserted, it generally as- 

 sumes an ovate form. It is a sluggish species, and adheres 

 strongly by means of its suckers, which are closely ar- 

 ranged in five equidistant rows. Its internal structure 

 presents no peculiarities. There is but one oesophageal 

 sac ; the respiratory trees are moderately developed, and 

 the generative tubes rather numerous. The teeth are 

 somewhat triangular at their apices. 



Q2 



