MFJJBE LEON IN A ((iOVLD) 



227 



the back up, the hood wmh'v i1. oi' tlir [i.-ipilla' 



serving as floats. In the l;ittt'i- cmsc Mrlihr ;iltfi-ii;iifly 

 bends laterally the aiitcfior ciid tn ;iiiul.'s of 4.") <lcuivr^. 

 During- these alt'nial iim' hciidinii-- <»r the 1..m1n iIm' ihmn.- 

 nients are ^wift.-t llic l.nd> ivl.-.x.',! fr-in tlir 



4rj-degree bend. thi^ iiutlicd it vnuvry-. it^rlf .|..u!y 



through the \vat,'i-. I lowcvci-. on the surfaec tension ot" 

 the water oi- on the uia>s, the movements are caused 

 by the ciliary action of the ventral surface of the foot, 



bodily confortioii. Tdhus lr,>orlna Linn, niov.-s thron^rh 

 the water by similar means ( licrulu l'"^'" ;iiid l^"^."!). In 

 its case, howT'ver, the Inruv \-cil, as wdl ;i- the latfi'al 

 bendings of iho hodw iil;i\> .-ni ini|H)i-t;iiit |,,-irt. (n)nld, 

 1852, in hi- o,\ • ■ ! ^, . .- ^ • 1/ . . , .a>- 



This aimnnl ^ - n.- iInm, 



Scijlhra p(hn/i''> ( '..Hin- v. ood. 1-7'.!. ^uii:i^ \ m-v much 

 like M. leounia an.l 7. In.Inn,: .•,,id (inrM.-um, l-lHi, men- 

 tions that LniiniH'itn. \'oi;iii\ . 1 1 n ^ " " \ i - o fon - i \ throuu'h 

 the water in the dish . . . I'v In^hinu- the body from sid.- 

 to side." r.nt neither (ionhh IJeruii, ( 'ollinu\vo<id. n..i- 



