Plate I. 



Fig. i. Eloactis mazelii juv. 2 /j a: tentacle, b: part of column. 



2. Halcampa? vegae Carlgr. Nat. size. 



3. Halcampa arctica Carlgr. not incrusted specimen from Treurenberg bay. z / 1 . 

 4- small specimen from Besimannaja bay. 2 / x . 



5. Edwardsia (Edwardsioides) vitrea (Dan). Proximal part of the type-specimen. */ 1 . 



6. Acthelmis intestinalis (Fabr.) Nat. size. 



7- /i- 



8, 9. Paraedwardsia sarsii (Diib. & Kor.) = Edwardsia carnea of Appellof from Herlofiord. 2 / r 



- 10. Edwardsia finmarchica Carlgr. from Troms0 (Kier) type-specimen a little magnified. 



- ii. vitrea (Dan), from Wijde bay showing heteromorphosis. 3 / 1 . 



- 12. finmarchica Carlgr. (Goes & Malmgren leg.). 2 / lP 



- 13, 14. Limnactinia laevis Carlgr. from Bohuslan. 2 / x . 



- 15. Paraedwardsia arenaria Carlgr. from Skagerrak. 2 / 1 . 



- 16. proximal part seen from the proximal end. 3 / 1 . 

 17, 18. Sideractis glacialis Dan. from Sunde much magnified. 



- 19. tentacle from the type-specimen magnified. 



- 20. Edwardsia tuberculata Diib. & Kor. from Bergen. 2 / r 



- 21 27. Peachia hastata Gosse. Series of larvae in different developmental stages, a : from the oral end 



b: from the side 6 /i, in fig. 24 the distal end begins to get the form of an octaeder, in fig. 25 the 

 tentacles in beginning development (compare the text). 



- 28. Peachia hastata Gosse from Bohuslan dredged from the clay. 3 / v 



- 29. from Bohuslan. oral disc and tentacles of the specimen reproduced in 



fig. 28. /i- 



- 30. Peachia boekii Dan. & Koren. part of the type-specimen with two tentacles, the conchula 



and part of the siphonoglyphe. 3 / 1 . 



- 31. Haliactis arctica Carlgr. from Greenland. a / 1 . 



- 32, 33. Milne-Edwardsia loveni Carlgr. from Vaderoarne z / v in the specimen reproduced in fig. 32 



part of the cuticle removed. 



- 34. 35- Halcampoides purpurea (Stud.) (abyssorum Dan.) small specimen, fig. 34 from the oral side, 



fig. 35 from the side. 2 / 1 . 



- 36, 37- Isoedwardsia ingolfi Carlgr. Fig. 36 proximal end 4 / 1( . fig. 37. 2 / r 



