24: NATURAL HISTORY OF 



striata, Ldbeo punctata, Leucozonia triserialis, and Siphonaria 

 venosa. A rather large elliptical sea-urchin (JEchinometra), 

 with long dark purplish-black spines, was very abundant, 

 adhering with such firmness by its suckers to the semi- 

 circular hollows in which it was lodged as to require a 

 considerable amount of force to detach it. A few Crustacea 

 and sponges, and a variety of Algse (a species of Padina, I 

 may remark in passing, was very common) were . also 

 procured ; and on our way back to the town I picked up, on 

 the beach, a Cirriped of the genus Coronula (C. halcenaris), 

 with fragments of the integument of the whale, on which it 

 had lived, still sticldng between the septa of the shell, as 

 also the cephalic shield of a Palinurus. A specimen of a 

 curious little crustacean, the Bemipes scutellatus, was also 

 taken by one of the officers, burrowing in the sand of the 

 beach, close to the water's edge. On the following day 

 I remained .on board, busily occupied in putting away 

 the various objects acquired the last three days ; and, late 

 in the afternoon, we bid the island farewell, departing under 

 sail, a matter of rejoicing to us all, as securing a greater 

 amount of coolness and general comfort than could be attained 

 in these warm regions under steam. 



