formed, Dufing cc. sting v:hich cccurrcd 11 months rxfter captivity it 

 reached one half of the normal lengbli and a completely normal form. 

 A similar condition was also observGd in another individur.l. l/ 



"ij The inf Drmntion on these regenerative conditions I owe to 

 customs inspector Evertsen T;ho at my request kept the aniiiials 

 in a floating boxa 



■ ; In all probability the pincer jf this ii).c.;.vidual r^ould have 

 reached the full size at the follovdrg moulting in correspondence 

 with, that v>r}iich one knows for the rfJ-generation in the /uTierican 

 species (Barnes, Po 123 )o This has been, moreover proved by direct 

 observations on young ar-iimr.ls at Kvittings/. In that place such a 

 complete gruwbh took place afuer tviro successive moultingso 



We TiTill nmv suitimarize briefly v/hot -.tb have related abvovc on 

 the dervolopment and gro\Tth of the lobster and of its habits during 

 the younger stages o 



The development of the eribrj'-o of the egg requires a period of 

 approximr.tcly 12 months on the Norr/egian VJest Cor.Gt, a slightly 

 shorter time on the South and East coasts* The- development oi the 

 eiribryo takes place principally dnring the wr rmer ?c-afr and stops 

 almost completaly dm'ing v;intcre In order that the 3arvan at hatch- 

 ing from the egg can be free of the neiiiibrane that e?-c.'-0,s -.- .it in the 

 egg, a strong movcr.Gnfc of the egg is necessary, a raovei.icrc .Tliich is 

 also caused by the siTinging of the female's abdoiiiinal fe':'^ to which 

 the. eggs arc fixe.'.o During the firat three stages' (the "■li.i-ral 

 stages) and at the beginning of the fo'irth (the first lobster stage) 

 vre find the larvae swimming about; but this sXTimming ability already 

 decreases with the beginning in the second stage and diminishee 

 considerably in the third; the larvae therefore stay mvich on the 

 bottoW vluring the li.tter tv;o larva], stages vfithout however having 

 the instinct to hide themselves* The swimming is carried on during 

 the first three stages by :;ieans of speoial sv/imj.iing palps fixed on 

 the last pair of :aaxillipeds and on the five thoracic feet, in the 

 fo\:irth stage by means of its abdominal feet.. Living, as well as 

 dead food is taken and indeed partly on the siirffce wh:Ile sv/imming, 

 partly below on the bottoms In the three larva.l d:ages the food is 

 seized v/ith the moxith parts without the help of pincers; in the 

 fourth, pincers are used the first time for that p-.arpose» As soon 

 as the young lobster has taken up his position on the bottom,, it 

 remains very stationary* It lives under rocks in shallov/ v/ater in 

 the vicinity of the coast© 



Grn^-.-th takes place periodically and- occurs principally during 

 the •T.'a.rmer seasonj each s,uch pcri,od vre shall call a grovfbh period© 

 The first period Irsts oh our 'vTest Coast from the hatching of the 

 larvae from the egg until appr'-rcimately the middle of November, 

 thus a period of tluree to four months ;? it varies hov/ever slightly 



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