132 



Pig. 3. 

 4. 



2) Endopodit; ex Exo 



10. 

 11. 

 12. 



Fis. 



1. 



2. 



3. 



4. 



Fig. 9. 



10. 

 11. 



12. 

 ■ 13. 

 = 14. 



- 15. 



16. 



17. 



. 18. 



- 19. 



Fia. 1. 



En Branfliialfod af Iste Par. 



En Branddalfod af otc Par; 



podit; ep Epipcidit. 



En Branfhialfoil af "'U' Par. 



En Branohialfod af 8de (sidste) Par. 



Eu Svoramefod af l.ste Par. 



Den ved Enden af Basaldelen intlad udgaaende Fort- 



sats, stærkere forstørret. 



En af de terminale Hager paa samme, meget stærkt 



forptorret. 



En Svommefod af 4de Par; x den indre Fortsats. 



Det forreste Par rudimentfere Halefodder. 

 Det bagerste Par Halelemmer. 



Sidste Halesegment. meil venstre Halegren, seet ne- 

 denfra. 



Tab. IA" 



Nebalia hipes (Fabr.) jf 



En Foler af Iste Par. 



En Foler af 2det Par i knn ilen l)asale Del af Svo- 



ben tegnet . 



En Kja've af Iste Par. 



En Kjæve af 2det Par. 



En Brauehialfod af ote Par. 



En Halefod af Iste Par. 



Eu Halefod af 2det Par. 



Enden af sidste Halesegment med venstre Halegren, 



seet nedenfi"a. 



Nebalia tt/pMops, G. O. Sårs. 9 



Side; 



Den forreste Del af Legemet seet fra høire 

 (holere Halvpart af Eygskjolilet Ijorttaget). 

 Pandepladen, seet ovenfra. 

 Øinene med det tilhørende Segment, ovenfi-a seet. 



Venstre Kindbakke med Palpe. 



En Kjæve af Iste Par. 



En Kjæve af 2det Par. 



En Branohialfod af Iste Par. 



En Branehialfod af sidste Par. 



En Svommefod af Iste Par. 



En af de forreste rudimentære Halefodder. 



En af de bagerste Halefodder. 



Tab. V. 

 Nebalia bipes (Fabr.) 



Skematisk Figur af en Hun, seet fra hoire Side, med 

 de vigtigste indre Organer indtegnede i samme og 

 angivne med særskilte Farver. 



Tværsnit af Dyret over Midtkroppen. De indre Or- 

 ganer angivne med samme Farver som paa Fig. 1. 

 C Eygskjoldet; i Tarmen; Cv, CfZ Tarmens Blind- 

 sække (Leversrekke) ; g Bugganglion; c Hjerte; Mv 

 ventrale Kropsmuskler; Md dorsale Kropsmuskler; 

 ov Ovarier; bjir Branchialfodiler. 



Tarmens Chitinskelet, seet fra venstre Side. 



Samme nedenfra. 



Et .Stykke af Bugganghekjreden. 



Et Æg, paa hvilket netop Blastodermen er dannet, 



iniltagendi' den nedre Halvdel. 



Et -Eg med indesluttet EmbrN-o, seet fra venstre Side. 



Fig. 3. A branchial leg of the 1st pair. 



4. A branchial leg of the .5th pair; jj, endopodite; cx. 

 exfipodite; ep, epipodite. 



5. A branchial leg of the 7th pair, 



6. A brancliial leg of the 8th 'last i pair. 



> 7. A natator}- leg of the 1st pair. 



> 8. The inward-pointing projection at the end of the 



basal part, more highly magnified. 

 : 8 a. One of the terminal hooks on the same, ver\- highly 



magnified. 

 5 9. A natatory leg of the 4th pair; x. the inner j^ro- 



jection. 



10. The foremost pair of ruiUmentary caudal legs. 



11. The hindmost pair of caudal limbs. 



12. Last caudal segment, \\-itli the left caudal ramus, seen 

 from below. 



Plate IV. 



Nebalia bipes (Fabr.; ^f 



Fig. 1. An antenna of the 1st pair. 

 » 2. An antenna of the 2nd pair (only the liasal part of 

 the flagellum drawn;. 



3. A maxilla of the 1st pair. 



4. A maxilla of the 2nd pair. 



.'). A branchial leg of the 5th pair, 

 s 6. A caudal leg of the 1st pair. 

 » 7. A caudal leg of the 2nd pair. 



8. End of the last caudal segment with the left cauilal 

 ramus, seen from below. 



Nebalia typltlops, G. 0. Sars. 9 



Fig. 9. The foremost part of the body seen from the right 

 (right half of the carapace removed). 



10. Frontal lamina, seen from above. 



11. Eyes, with the segment belonging to them, seen 

 from above. 



12. Left mandible with palp. 



' 13. A maxilla of the 1st pan-. 



14. A maxilla of the 2nd pair. 



> 15. A brancliial leg of the 1st pair. 

 16. A branchial leg of the last pair. 



> 17. A natatory leg of the 1st pair. 



• 18. One of the foremost rudimentary caudal legs. 

 19. (_)ne of the hindmost caudal legs. 



Plate V. 

 Nebalia bipes (Fabr.) 



Fig. 1. Diagrammatic drawing of a female, seen from the 

 right, with the most important organs shown in dif- 

 ferent colours. 



2. Transverse section of the animal through the meso- 

 some. The internal organs represented in the same 

 colours as in fig. 1. C, carapace; i, intestine; Cv,Cd. 

 intestinal cæca (biliary cæca); g, ventral ganglion; 

 c, heart; Mv, ventral muscles of the body; Md. 

 dorsal muscles of the liody; ov. ovaries; bpr, bran- 

 chial legs. 



3. Chitine skeleton of the intestine, seen from the left. 



> 4. The same, from below. 



> 5. A piece of the ventral ganglion chain. 



f 6. An egg, in which the blastoderm is just formed, ami 

 occupies the lower half. 

 7. An egg, with enclosed embryo, seen from the left. 



