(53 



tvdelig- smekrere end hos Hunnen (se Tab. IX, Fig. 

 3 og 4, Tal). X, Fig. 6). De 2 Kjonsringe er tyde- 

 ligt adskilte i sit dorsale Parti og er, ovenfra seede, 

 neppe bredere end Trnncus. Derimod danner de 

 nedad en noget uregelmæssig Udvidning, hvorfra de 

 ydre Kjonsvedhæng ndgaar. Disse sidste er for- 

 holdsvis storre end hos Branchinecfa og af noget nær 

 ovlindrisk Form, eller kun ganske svagt afsmalnende 

 mod Enden, og har det ydre Parti tæt besat med 

 iilie Haar. Den bagenfor liggende Del, den egent- 

 lige Hale, afsmalnes gradvis liagtil og er, nligt livad 

 Tilfældet er lios Hunnen, delt i (i tvdeligt begi-ænd- 

 sede Segmenter, foruden HalegTenene. Dis.se sidste 

 er fuldkommen af samme Udseende som hos Hunnen. 



Parve. — Legemet er hos begge Kjon i levende 

 Tilstand meget gjennerasigtigt, saa at de indre Or- 

 ganer mere eller mindre tydeligt skinner igjennem 

 de tynde Integumenter. Hos Hunnerne har det ial- 

 mindelighed et svagt gronligt Anstrog, medens det 

 hos Hannerne viser en lys gulagtig Tone. Dog va- 

 rierer Farven betydeligt hos begge Kjon efter Lo- 

 kaliteterne og spiller undertiden over i det blaalige 

 eller rodlige. Hos fuldt udviklede Hunner tindes 

 meget constant (se Tab. IX, Fig. 1 og 2) paa Kyg- 

 siden af Kjonsregionen 2 sidestillede rudeformige 

 Pletter af en intensiv ultramarinblaa Farve og ind- 

 fattede af en moi-kere Kant. Enhver af disse Plet- 

 ter forlænger sig sædvanligvis fortil i en smal Stribe 

 af samme Farve, og mellem begge disse sees ialmin- 

 delighed 2 andre tæt sammenstillede Længdestriber 

 af en lignende Couleur. Den forreste Del af Æg- 

 beholderen er i Regelen orangefarvet, medens den 

 bagerste Del viser nogle uregelraæssige violette 

 Shatteringer. De i Ægbeholderen indsluttede Æg 

 er morkt grønfarvede. Hos Hannerne er ofte Spid- 

 serne af Gribeantennernes Grrene mere eller mindre 

 tydeligt orangefarvede, og undertiden det bagerste 

 Segment af Halen violet anstroget (se Tab. IX, Fig 

 3 og 4). 



Indre Organer. 



Tarmen strækker sig, som hos Brriuchinecfa, i 

 Form af et simpelt cylindriskt Ror igjennem hele 

 Legemet (se Tab. IX, Fig. 1 — 4), og er ialmindelig- 

 hed fyldt med orangefarvet Indhold, der liagtil grad- 

 vis antager en morkere l)runagtig Farve. I Hovedet 

 udgaar fra Forenden af Tarmroret 2 korte Blind- 

 sække af en lignende Structur som hos Branch mecfa. 

 Spiseroret (Tab. X, Fig. 4, 5, o) viser ved sin For- 

 bindelse med Tarmroret en eiendommelig klapformig 

 Indretning, ligesom der paa dette Sted lindes et 

 Slags ehitinagtigt Støtteapparat besat med et Antal 

 af stærke, i Tarmens indre frit fremspringende borste- 

 formige Fortsatser, eilierede i Kantei'ne. Endetar- 



hand, is very different to, and much more slender 

 than that of the female (see PI. IX, figs. 3 and 4; 

 PI. X, tig. Hi). The two genital segments are dis- 

 tinctly separated in their dorsal ]>art, and, when 

 seen from above, are scarcely broader than the 

 trunk. Below, however, they form a somewhat irre- 

 gular expan.sion, from which the external sexual 

 appendages issue. The latter are relatively larger 

 than in Branch hiecla, and nearly cylindrical in form, 

 being only very slightly tape5-ed towards the end, 

 and with the outer part covered with tine hairs. 

 The posterior portion, or tail proper, tapers gradu- 

 ally towai'ds the end, and, unlike that of the female, 

 is divided into (> distinctly-defined segments, besides 

 the caudal rami. The latter are of exactl^• the 

 same appearance as those of the female. 



Colour. — In the living state, the body in both 

 sexes is very transparent, so that the internal or- 

 gans are traced more or less distinctly through the 

 thin integuments. In the females, it has generally 

 a faint tinge of green, while in the males, it exhi- 

 bits a light yellow shade. The colour varies, how- 

 ever, consideralily in both sexes, according to the 

 localities, and sometimes has a blue or a red tint. 

 In fully developed females, there is very generally 

 found (see PI. IX. figs. 1 and 2) on the dorsal side 

 of the sexual region, 2 juxtaposed, diamond-shaped 

 patches of an intense ultramarine-blue, surrounded 

 by a darker rim. Each of these patches is generally 

 prolonged anteriorly into a narrow stripe of the 

 same colour, and between them are generally to be 

 seen two other longitudinal stripes of the same 

 cohnir, placed close together. The anterior portion 

 of the marsupium is,, as a rule, orange-coloured, 

 while the posterior part exhibits some irregular 

 purple markings. Tlie eggs enclosed in the mar.sn- 

 pium are of a dark green eoloiir. In the males, the 

 tips of the rami of the prehensile antennæ are fre- 

 ([uently more or less distinctly orange-coloured, and 

 the hindmost segment of the tail is often tinged 

 with ])urple (see PI. IX. figs. 3 and 4). 



Internal Organs. 



As in Branchinecfa, the intestine runs in the 

 shape of a- simple cylindrical tube throughoTit the 

 length of the body (see PI. IX, figs 1 — 4), its con- 

 tents being generally of an orange-colour, gradually 

 assuming a darker brown hue postei'iorly. From 

 the anterior end of the intestinal tube, in the head, 

 there issue 2 shoi-t cæca of a structure similiar to 

 that in Branchinecfa. The cesojihagus (PI. X, figs. 

 4, 5, o) exhibits at its junction with the intestinal 

 tube, a peculiar valve-like arrangement, and also at 

 the same place a kind of chitinous support, clothed 

 with a number of .strong, setiform spikes with cili- 

 ated edges, freelv projecting inside the intestine. 



