85 
Cuticula with hypodermis papillae. * 115. 
Transverse section through pedal gland with capillaries. ~< 470. 
Two teeth from the radula. ~< 120. 
Anterior end of animal in longitudinal section. * 15. 
Posterior 9 Bye >< 15. 
Kruppomenia borealis n. sp. 
Animal from the left; both ends longitudinally opened. * 15. 
— yy — below. * 15. 
Anterior end of animal in longitudinal section. * 25. 
Posterior —y—= — 9 — >0125. 
Spicula. * 355. 
Cuticula with hypodermis tissue. >* 500. 
Figs. 41—43. Transverse sections through the following parts of body (< 90): 
” 41. 
48. 
Fig. 41. Pharynx and ciliated crypt; 
» 42. Posterior third of body; 
» 43. Shell gland. 
Wirenia argentea n. gen. et sp. 
Animal from the left. X 18. 
Anterior end of animal in longitudinal section. * 65. 
Posterior _ —y— ee < 65. 
Spicula. * 275. 
Cuticula. >< 570. 
Figs. 49—52. Transverse sections through the posterior part of body (< 140): 
Fig. 49. Anterior end of shell gland with opening of proximal 
part of coelmoduct (cp.); 
» 50. Somewhat more posteriorly than the preceding; 
» 51. Through precloacal invagination; 
» 52. Through opening of cloacal chamber. 
Dorymenia sarsi KOREN & DANIELSSEN. 
Anterior end of the animal in longitudinal section. * 15. 
Posterior —= ee DK TSV 
5 —,y3— from below. X 6. 
Superficial view of cuticula showing arrangement of spicula. * 50. 
Two teeth rows of the radula (side parts incomplete). ~< 120. 
Transverse section through median part of body. * 60. 
Anamenia borealis KOREN & DANIELSSEN. 
Animal from the left. Norw. North Atl. Exp. St. 18. X 55. 
Anterior end from above with dorsal keel. X 5.5. 
