mellom hvilke deres ydre Del træder frem,' er af den sæd- 

 vanlige smækre Bygning og kan strækkes med hele Skattets 

 sidste Led foran Øinene. 



2det Par Føleres Basaldel viser udåd en stærk, for- 

 tilrettet og i den indre Kant tandet Torn og indenfor denne 

 et næsten dobbelt saa langt, lancetformigt, bevægeligt Ved- 

 hæng, der svarer til Bladet hos Macrurerne. Dette Ved- 

 hæng overrager med sin Spids Øinene og er besat med 

 spredte Haar. Den traadformige Svøbe er omtrent af Lege- 

 mets Længde og delt i talrige korte Led. 



Fangarmene er meget nlige udviklede og, som altid 

 Tilfældet er hos Arterne af den egentlige Slægt Eu/pagurus, 

 den høire størst. Den er omtrent af hele Legemets Længde 

 og af en særdeles kraftig Bygning. De 3 første Led er, 



naar Dyret sees ovenfra, ganske skjulte muler Forkroppen. 

 4de Led er af prismatisk Form. indad næsten plant og 

 udvidet mod Enden, hvor det er forsynet med nogle spredte 

 Torner og Børster. 5te Led eller Vristen er omtrent af 

 samme Størrelse og af næsten trekantet Form. Dets ovre 

 Flade er noget hvælvet og forsynet med talrige tornformige 

 Kimder. som mod den indre Kant bliver storre og ordner 

 sig i mere eller mindre tydelige Længderader; mellem Tor- 

 nene staar tætte Børsteknipper. Haanden (se ogsaa Fig. 9) 

 er særdeles kraftig, af bredt oval Form. noget afnadet og 

 lidt hengere end Vristen. Dens ovre Flade er meget ujevn 

 og viser A tydeligt markerede Længdek joler, hvoraf de to 

 indtager Sidekanterne og er forsynede med skarpe Saug- 

 takker, medens den 3die lober langs ad Midten og er mere 

 stumpt afrundet samt forsynet med mindre knudeformige 

 Forhoininger. som dog bagtil delvis antager Formen af 

 spidse Torner. Mellem Kjølerne er Overfladen tydelig ind- 

 hulet og her kun forsynet med adspredte stumpe Knuder. 

 Fingrene er noget kortere end Palmen, brede og noget 

 affladede samt jevnt krummede mod Spidsen. De er som 

 den øvrige Del af Haanden besatte med Børsteknipper og 

 viser i den indre Kant uregelmessige storre og mindre 

 Knuder. Haandens ydre Kjol fortsætter sig som en saug- 

 takket Kam langs ad den ubevægelige Finger lige til dens 

 Spids. og ogsaa den mediane Kjol lader sig delvis forfølge 

 langs ad den indre Kant af Fingeren. Den bevægelige 

 Finger er saa vel paa sin ovre Flade som i Kanten forsynet 

 med tydelige tornformige Knuder. 



Den venstre Fangarm er, som ovenfor antydet, be- 

 tydelig baade kortere og svagere bygget end den høire. 

 Vristen er ogsaa her paa sin ovre Flade besat med spidse 

 Torner, der dog er langt færre i An tal. Haanden (se Fig. 

 LO) er ligesom Vristen tæt haaret og af aflang oval Funn. 

 indad uden Spor af Torner, udåd derimod forsynet med 

 en saugtakket Kam. og langs Midten af den ovre Flade 

 med en bagtil stærkt fremspringende tandet Kjol. Fingrene 



neatb the eves. between wMch their exterior portion projects, 

 exhibit the usual slender structure, and admit of being 

 exserted. along with the whole of the last segment of the 

 peduncle, in front of the eyes. 



The basal portion of the 2nd pair of antennæ ex- 

 hibits exteriorly a stont. anteriorly directed, and. along the 

 inner margin, dentate spine. on the inner side of which is 

 an almost double as long, Lanceolate, moveablo appendage, 

 corresponding to the scale in the Macrura. This appen- 

 dage projects with its point beyond the eves. and is beset 

 with scattered hairs. The filiform flagellum is about of 

 the same length as the body, and divided into numerous 

 short segments. 



The chelipeds are veiv unequally developed, and. as 

 is always the case in species of the true genus Ewpagurus, 

 the right one is the larger; it attains about the length of 

 the whole body, and has an extremely powerful structure. 

 The 3 anterior segments are. when the animal is viewed 

 from above. vvholly concealed beneath the cephalo-thorax ; the 

 4th segment is prismatic in form. inward almost plane, 

 and furnished toward the extreinity with a few scattered 

 spines and bristles; the oth segment, or wrist, is about of 

 the same size and well-nigh triangular in form; its upper 

 surface is somewhat arcuate and provided with numerous 

 spiniform protuberances. which, toward the inner margin, 

 gradually increase, and are arranged in more or less dis- 

 tiuct longitudinal series; between the spines occur closely 

 disposed bunches of bristles: the hand (see also fig. 9) is 

 exceedinglv powerful, broadly ovate in form. somewli.it bev- 

 elled, and a trifle longer than the wrist: its upper surface 

 is verv uneven and exhibits 3 distinctly marked longitudinal 

 carinæ, two of which occupy the lateral margins, and are 

 distinctly serrate throughout. whereas the 3rd carina runs 

 ali mg the middle. and is more obtuselv rounded. as also 

 beset with small tuberculiform protuberances. which. however, 

 in places. assume the form of sharp spines; between the 

 carinæ. the surface is distinctly hollowed out. and fur- 

 nished there with only a few scattered knobs; the fingers 

 are somewhat shorter than the palm, broad and slightly 

 bevelled. as also uniformly curving towards the point: like 

 the remaining portion of the hand. they are beset with 

 bunches of bristles. and exhibit along the inner margin 

 irregular-shaped tubercles. varying in size: the exterior 

 carina of the hand is produced as a serrate comb along 

 the immovable tinger to its very point. and the median 

 carina may be partly traced along the inner margin of the 

 huger: the moveable tinger is provided, both on its upper 

 surface and along the margin, with distinctly spiniform 

 tubercles. 



The left cheliped is, as stated above. consideralily 

 shorter, and exhibits besides a much more slender form than 

 thr right: the wrist. too. is beset over its upper surface with 

 acute spines, which, however. are very consideralily less 

 numerous; the hand (see rig. LO) is. like the wrist. densely 

 ciliated and oblongo-ovate in form. exhibiting interiorly not 

 a trace of spines. but exteriorly furnished with a serrate 

 comb, and having along the middle of its upper surface 



