222 



PENT ACT .E. 



are large, pedunculate, and pinnate at their extremities. 

 The suckers are placed in two close rows in each avenue. 

 The specimen taken by us was two inches and a half in 

 length. Dr. Fleming says it attains the length of six 

 inches. 



On opening our specimen we found one oesophageal 

 sac, a complicated intestine, a moderately developed re- 

 spiratory tree, and rather small teeth. The generative 

 tubes were wanting. It is probable these tubes are not 

 developed in the Holothuriadse until the animal has at- 

 tained a certain age, as we almost always found them 

 wanting in such sj^ecimens as ajmeared to be young. The 

 one before us being only half grown (supposing the size 

 noted by Dr. Fleming to be the animal's full dimensions) 

 bears out the observation. 



