400 CRUSTACEA. 



broke his tether, leaped out of the port, and was most 

 probably drowned, although we saw him strike out lustily 

 for the shore. One of this species was killed by Lieut, 

 (now Commander) Inglefield, at Unsang, on the east 

 coast of Borneo, of enormous dimensions. It was a full 

 grown boar, and weighed more than five score. 



Many very interesting specimens may be procured at 

 low water, in the flat, sandy bay near the mouth of the 

 Lundu. It was here that we had the good fortune to 

 discover a new species of Amphwxus, or Lancelet. This 

 interesting link, between the annelides and the fishes, 

 has been described by Mr. Gray,* who has named it 

 Ampkioxus Belcheri. Here also we procured a very ele- 

 gant and beautiful species of Crustacea, also new to 

 science, Amphitrite argentata (Adams and White) ;f while 

 any person walking along the shores in the immediate 

 neighbourhood, might have collected numbers of very 

 perfect specimens of Tellina Spengleri, beautiful violet- 

 coloured Mactras, (Mactra violacea,} Solenocurtus radiatus, 

 and frequently a tolerably perfect specimen of Rostellaria 

 rectirostris. Olives and Nassas cover the moist sand, 

 and a brilliant dark-coloured Rotella, a species not yet 

 described, may be detected lurking by thousands imme- 

 diately below the surface in company with another species. 

 Several specimens of that strange genus, Calappa, were 

 taken by us in this locality. 



Near the Dyak village of Samarhtan, not far from the 

 mouth of the Lundu, there are certain mud-banks left 

 dry at low water, and which are perfectly cribriform with 



* Ann. and Mag. Nat. Hist. vol. xix. p. 463. 

 f List of Specimens of Crust, in Brit. Mus. p. 126. 



