( 270 ) 



The firft thing I examined was the mouth of the Shrimp, which 

 I found on all fides pi-ovided with various organs, and each of thefc 

 again fiirnilhcd with many weapons, the w^hole of which feemed 

 contrived for the purpofe of catching the Shrimp's prey, and con- 

 veying it to the mouth. 



Upon opening the mouth 1 law that it had on each fide a tooth : 

 the fore part of this tooth, to be ufed in biting, was not fmooth or 

 even, but made with indentings or notches ; and, upon applying one 

 tooth to the other, I found that the rifing parts in one tooth moll ex- 

 aAlv fitted the cavites or notches in the other. Thefe teeth in the 

 fore parts or edges were a little broader or thicker and of a yellow- 

 ifli colour, but the lower ends of them were white. 



I caufcd a drawing to be made of the Shrimp's tooth, as feen by 

 the microfcope, and this is fliewn o.t fig, 3 1, KLjNINO, in which 

 figure the letters KLM denote that part of the tooth chiefly ufed 

 in biting. 



Coming to the fiomach, which I took out of the bodies of feveral 

 Shrimps and laid open, I law that Ibme of the animals had fed on 

 linall filhcs, mixed with minute Shrimps bitten in pieces, and in 

 one Shrimp I found fofne large fragments of another Shrimp which 

 had been of a middling fize, from whence it appeared plain to me, 

 that a Shrimp can open its mouth much wider than I had before 

 imagined. 



The fiomachs of other Shrimps were empty ; many others I faw 

 containing a great quantity of thin pai'ticles, which I deemed to be 

 fmall bones, \\'liich had been part of the fins of fome fmall filhes, 

 and alio fome of the organs of other Shrimps ground to pieces in 

 the mouth. 



Thefe thin oblong particles I have mentioned, when vicM^ed by 

 the microfcope, exhibited the fame appearance as the fragments or 

 lliavings of one's beard viewed with the naked eye, with this dif- 

 ference only, that thefe particles terminated in a point at one end. 

 I alio law a particle, one fide of which was armed with teeth notched 



