59 
Par enormt forlsenget, over dobbelt saa lang som selve 
Stammen, med Endedelen sammensat af et stort Antal af 
borte Led. Epignatben er smalt lancetformig og omtrent 
af Basaldelens Lsengde. 
2det Par Kjsevefodder (Pig. 13) er kraftigt udviklede, 
mere end dobbelt saa lange som lste Par og mangier som 
smdvanligt Epignatb, hvorimod Exognatben er at samme 
bdseende som paa foregaaende Par. Af StammensLed ei 
det 4de lmngst. ote Led. der ssedvanlig med foregaaende 
danner en stank knaeformig Boiniug, er noget fortvkket i 
Ei i den og her bet bprstebesat. Sidste Led er saerdeles lidet 
°g meget bevaegeligt forbundet med det foregaaende. saa 
a t det kan slaaes ind mod en tilsvarende Udrandning i den 
indre Kant af dette (se Fig. 14). Det bar foruden en hel 
Bel bnere Bprster paa bver Side en Had af korte cilierede 
lorner. Selve Spidsen indtages af en noget stprre ucilieret 
1 orn, der forestiller den rudimentsere Endeklo. 
Fpdderne (Fig. 15) visor den for Slmgten characteri- 
stiske spinkle Form og er navnlig i den indre Kant ioi- 
synede med talrige lange og tynde Booster. Det stankt 
forkmgede 4de Led liar paa lste Par ved Enden i det 
ydre Hjorne et Ivnippe af lange fortilrettede Fjasrborster, 
der mangier paa de evrige Par. Endedelen er (paa de 
forreste Par) betydelig kortere end 4de Led og bestaar 
Hgesom hos 11 megalops kun af 2 Led. foruden Endekloen. 
Svpmmegrenen (Exopoditen) svarer i sin Bygning fuldkom- 
men til Exognatben paa Kjsevefpdderne og er som denne 
ualmindelig stmrkt forlsenget, med Endedelen sammensat at 
indtil 56 Led. 
Brystposen eller Marsupium, der paa et Par at de 
erholdte Exeinplarer var stserkt udviklet (se b ig. 2). er 
s °m bos de pvrige Arter af denne Slaegt sammensat at ikko 
mindre end 7 Par tydelige Plader, der udgaar fra Basis af 
samtlige Fodder samt sidste Kjsevefodpar, bvorfor den ogsaa 
indtager Storsteparten af Forkroppens "V entralside. De 
forreste af disse Plader (se Fig. 13 og 15) er smalt tunge- 
formige, de evrige bliver bagtil succesivt stprre og mere 
lancetdannede. 
Bagkroppens Buglemmer (Fig. 16) era! den ssedvanlige 
rudimentsere Beskatfenlied, kun dannende smaa enkle. i den 
ene Kant med stmrke Fjserbsrster forsynede tilspidsede Plader. 
Det midterste Halevedbamg (Fig. 17) er temmelig 
stort, pladeformigt. og af aflang Form, med den ydre De 
n °g»t afsmalnende. Dets Sidekanter er ganske svagt buede 
naar nndtages det basale Parti, bet besat med Torner, 
<1 " 1 ' er af meget ulige Stprrelse og saaledes grupperede, at 
<K'r mellem to lamgere altid tindes et vist Antal (6-8) 
kortere. Enden er som smdvanligt i Midten dybt indskaaret. 
Indsnittet. der omtrent indtager V» af Vcdhamgcts Lsengde, 
er fort.il ganske smalt, dog afrundet i Bunden. og bar Kan- 
terne besatte med kamformigt ordnede Den der. Endefligerne 
18) er stumpt koniske og ved Spidsen forsynede med 
,J flu| trent. ligestore Torner. 
Here, as in the succeeding pairs, the exogna.th is quite 
unusually produced, being more than twice as long as the 
stem itself, and has the terminal section composed of a large 
number of short articulations. The epignatb is slender- 
lanceolate, and about of the same length as the basal part. 
The 2nd pair of maxillipeds (fig. 13) are powerfully 
developed, more than twice as long as the 1st pair, and as 
usual without any epignatb. Of the joints of the stem, the 
4th is the longest. The 5th joint, which, along with the 
preceding, usually forms a strong, geniculate curve, is 
somewhat inspissated at the extremity, and there densely 
beset with bristles. The last joint is exceedingly small, and 
very flexibly connected with the preceding, in such manner, 
that it admits of being bent in toward a corresponding 
emargination on the inner border of the latter (see fig. 14). 
It has, exclusive of a great many slender bristles, on either 
side a. series of short ciliated spines. The point itself 
bears a somewhat larger, naked spine, that represents the 
rudimentary terminal claw. 
The legs (fig. 15) exhibit the slender form charac- 
teristic of the genus, and are furnished, more particularly 
along the inner margin, with numerous long and slender 
bristles. The very elongate 4th joint has on the first pair, 
at the extremity, in the outer corner, a fascicle of long, 
anteriorly directed, plumose bristles, wanting in the other 
pairs. The terminal part (on the foremost pairs) is con- 
siderably shorter than the 4th joint, and consists, as in B. 
megalops , of 2 articulations only, besides the terminal claw. 
The natatory branch (the cxopodite) corresponds in its 
structure perfectly with the exognath on the maxillipeds, 
and is, like that, greatly produced, the terminal part being 
composed of as many as 36 articulations. 
The marsupium, or incubatory pouch w hich, in one oi 
two of the specimens collected, was greatly developed (see fig. 
2). is, as in the other species of this genus, composed of not 
less than 7 pairs of distinctly defined plates, proceeding from 
the base of the legs and of the last pair of maxillipeds; 
and hence it occupies the greater part of the ventral face 
of the anterior division of the body. The foremost of these 
plates (see figs. 13, 15) are narrow-linguiform, the others 
become successively larger posteriorly and more lanceolate 
in shape. 
The abdominal limbs (fig. 16) have the usual rudimentary 
character, forming merely small, simple, pointed plates, fur- 
nished along one of the margins with strong, plumose bristles. 
The telson (fig. 17) comparatively large, oblongo-lamel- 
lar iu form, with the outer part somewhat tapering. Its 
lateral margins are very slightly arched, and. sa\ing the 
basal part, densely beset with spines, very unequal in size, 
and so disposed that a certain number (6-8) of shorter 
always occur between two longer ones. The extremity 
is as usual, deeply cleft in the middle. The incision, 
measuring about one-fifth of the length of the appendage, 
is quite narrow anteriorly, but rounded at the bottom, and 
has the margins beset with teeth, in a pectinate arrange- 
ment. The terminal lobes (fig. 18) are obtusely conical, and 
furnished at the point with 3 spines, about equal in size. 
8 * 
