O F N A T U R E. 1 1 1 



of them exactly obferve the times of coming and 

 going, and that they do not miflake their way. 

 There is a very large fiiell-fifh in the Medi- 

 terranean called the finna^ blind as all of that 

 genus, but furniilicd with very ftrong calca- 

 reous valves. (Bell, aquat. 401. t. 401. Jonfl. 

 exfang. t. 16. f. 5, 6. Gualt. ind. t. j^^ 79.) 

 The fcuttle-fifij (Bell, aquat. 330. t. 331. Jonft. 

 exfang. t. i . f. i . ) i^ an inhabitant of the fame 

 fea, and a deadly enemy to the former \ aa 

 foon as the fcuttlc-fiftj fees the -pinna open its 

 ihell, he rufhes upon her like a lion, and de- 

 vours her. The pnnoteres or pinnopbylax 

 (Jonll. exfang. t. 20. £ 3.) is of the crab kind 

 naked, like the hermit, and very quick-fight- 

 ed. This cancer or crab the pinna receives 

 into her covering, and v/hen fhe opens her 

 valves in quefl of food, lets him out to look for 

 prey. During this the fcuttle-fifio approaches ; 

 the crab returns with the utmofb fpeed and 

 anxiety to his hoftefs, who being thus warned 

 of the danger fnuts her doors, and keeps out 

 the enemy. I'hat very figaclous obierver D. 

 D. Hafielquifi: in his voyage towards Palcftine 

 beheld this curious phenomenon, which tho' 

 well known to the aiuients had cfcapcd the 

 moderns. Aiiil. hift. lib. 5. c. 15. rel.irrs, 



that 



