HEUWIi CRABS* 



clatteniig' iirtise to J>roceed from the collision of 

 tlieir l)iirr(i\vi'<l coverings; aiul ^illo^lI(l tlirv not 

 be able io eseujje capture they draw theiihselves 



do&ely into tKe ^bdl, cto^x^ tite ftj^toe so 

 firmly^ by ctossing claw* oiftt tbe eiifeto^j^ 

 ?i$to reader it impossible to extract them without 

 breaking tb<" shell to picn-es. Tbus secured, 

 they remain iiiiinoveable and apparently dead, 

 and may be Melcedi or tbt^m atoui^ M&out 

 ^inxk^ aay iadieatiQ»d of life,- tmt pa^edt 

 they enier*vo partly from the shell as beforfir^ ^aild 

 move briskly away. Tlie natives use th&tD, 00* 

 casionally, but rarely, as food. 



It is m impx^aisiJkth &iipfiodM^» t&at tb@ 

 ova of iihase^iiiii^^ <n*ti$tae0oi^ animalt A^- 

 posited in the empty shells lying upon tilielb^li ; 

 and tlie changes tliese rrifsfacea undergo is one 

 of the most intert^rithig subjeets of investigation 

 whii^ j6<mld engage the a^isiio&: ^ a pt^s^sA. 

 tiaitaraUst, It h a cumtm ttml^ no matter 

 whatever form the univalve shell may have, the 

 posterior or soft parts of the animal iulial>iting it 

 are accommodated to it ; thus causing persons 

 not accustomed to observe ih& dianges of natural 

 a^&m to T^gard tH» m tb$ otjgiiial uoittaMtaiit; 

 and it k oftemlim^ i^&mH to persuade them 

 of the reverse : the posterior portion of the 

 animal being naked, and the anterior crusta- 



DD 2 



