to 



var tilstede som et liudiment, er lier meget stærkt 

 tulviklet, fuldkoinmeii saa lang som den 4de, og ud- 

 pi'æget kloformig. Den er i Yderkanten besat med 

 tine Borster og har Iiulerkanten fint og regelraæssigt 

 sagtakket. Coxallappen er noiagtig af samme lld- 

 seende snm ]iaa Iste Par. Derimftd er de 2 ydre 

 Vedhæng, og navnlig Exopoditen (ex) forholdsvis 

 større. 



De folgende 7 Par gaar snceessivt over til at 

 antage det Udseende, som lOde Fod])ar viser. Dette 

 sidste (Fig. 16) er idethele kortere og mere sammen- 

 trængt, uden nogen tydelig Segmentering eller kiiiv- 

 formig Boining af Stammen. (Joxallapi)en er tVir- 

 holdsvis noget mindre end paa de 2 forreste Par og 

 mere lige indadrettet. Enditerne er kortere og bre- 

 dere, næsten ])ladeformige, og den yderste bredt 

 lancetformig samt tæt borstebesat i den ydre Kant. 

 De ydre Vedhæng er begge af anselig Storrelse, og 

 navnlig Exopoditen (ex) betydelig storre end ])aa de 

 forreste Par: dens Form er ogsaa noget forskjellig, 

 idet den er mere oval, med den nedre FUg bredt 

 a fru n det. 



Ute Fodpar (Fig. 17' viser et fra de ovrige 

 Fodder meget afvigende Udseende, idet de 2 ydre 

 Vedhæng her er omdannede paa en eiendommelig 

 Maade, saa at de tilsammen danner en æske.forniig 

 Kapsel, hvori Æggene midlertidig! optages, for at 

 for.synes med .sin Skal. Laaget af Kapselen, dei- 

 vender fortil og er af regelmæssig eirenlær Form, 

 dannes af Epi])oditen, medens Bnnden af Kapselen 

 ndgjores af Exopoditen. Ogsaa denne er af tilrnn- 

 det Form, men noget bredere end Eiiipoditen, og 

 ndspringer med en bred Basis fra Stammen. Begge 

 slntter temmelig noie sammen, dog saaledes, at der 

 ])aa den ydre Side er en rendeformig Fordybnlng, 

 der dannes af de omboiede Kanter af Exojjoditen. 

 Selve Stammen er kort og bred, pladeformig, og den 

 yderste Kndit ikke tvdeligt begra^idset, dannende 

 en nmiddelbar Fortsættelse af Stammen i Form af 

 en triangnlar Lap. 



I2te Fodpar (Fig. 18) viser igjen et mere nor- 

 malt Ldseemle og stemmer idethele i sin Bygning 

 noie overens m(>d lOde i'ar, naar undtages, at det 

 er mindre og har den yderste Endit forholdsvis kor- 

 tere og breilere. I )et samme er ogsaa Tilfaddet im-d 

 Exopoditen, hvis nedre Del er mindre frems])rin- 

 gende. 



De folgende Fod))ar aftager sueeessivt i Stor- 

 relse og bliver tilsidst ganske rndimentære, skjondt 

 alle de Dele, dei- findes paa de foregaaende Par, 

 lader sig paavise. 



Fig. 19 fremstillir en Fod af et af ile bagerste 

 Par ved samme Furstorrelse som de foregaaende 

 Par. Det vil sees, at Enditerne er betytleligt redu- 



The ontermost, or oth endite, which in the tirst 

 pair was only fonnd as a rudiment, is here very 

 strongly develo))ed, is fully as long as the 4th, and 

 of a pronounced claw-like shape. The outer edge 

 is clothed with fine l)ristles, and the inner edge 

 finely and regularly serrated. The coxal lobe is of 

 exacth' the same appearance as in the first pair. 

 The two outer appendages, on the other hand, 

 and especially the exojiodite (ex), are comparatively 

 larger. 



Through the 7 suc^ceeding pairs there is a 

 gratlual transition to the 'a])pearance of the 10th 

 pair of legs. This pair (fig. Hi) is on the whole 

 slun'ter and more compact, without any distinct seg- 

 mentation or geniculation of the stem. The coxal 

 Ifibe is relatively rather smaller than that in the 

 foremost 2 pairs, and its direi'tion is more directly 

 inwards. The endites are shorter and broader, al- 

 most lamellar, the imtermost being iiroadlv lanceolate 

 in form, and ilensely setons on the distal edge. The 

 onter appendages are both of considerable size, the 

 exopodite (ex) esjjecially being much larger than in 

 the foremost pairs. Its shape is also somewhat dif- 

 ferent, being more fival, and the lower lobe moi-e 

 broadly rounded. 



The 11th pair of legs (rig. 17) exhibits a very 

 different apjiearance from the others, the 2 outer 

 appendages being transformed in a peculiar manner, 

 so as together to form a box-like capsule in which 

 the ova are tem])orarily received in order to be fur- 

 nished with their shell. The lid of the capsule, 

 which turns to the front, and is of a regularly cir- 

 (!ular shape, is formed by the epipodite, while the 

 bottom of the capsule consists of the exopodite. 

 This, too, is of a rounded form, lint rather broader 

 than the epi|)odite, and issues with a lu-oad base 

 from the stem. The two ])arts fit together tolerably 

 exactly, yet in such a manner that on the outer 

 side there is a channel-like hollow formed by the 

 deeurved edges of the exopodite. The stem itself is 

 short, broad and lamellar: the outermo.st endite is 

 not clearly defined, and forms a direct continuation 

 of the .stem in the shape of a triangular lobe. 



The 12tli pair of legs (rig. 18' exhibits a more 

 normal apyiearance, and. on the whole, agrees very 

 nearly in its structure with the Idth pair, excepting 

 that it is smaller, and that the outermost endite is 

 relatively shorter and broader. This is also the 

 case with the exopodite. the lower part of which is 

 less projecting. 



The succeeding pairs of legs decrease succe.s- 

 sively in size, and at last become quite rudimen- 

 tary, although it is ])ossible to distinguish all the 

 ])arts that are found in the preceding pairs. 



Fig. 1!' represents a leg of one of the hindmost 

 pairs magnified with the same ])ower as the pre- 

 ceding pairs. It will be seen that the endites are 



