440 



1905. Myxüla incrustans, Lundbeck, The Danish Ingolf-Exp. VI, 2, 132, 

 PI. IV, figs. 6—7, PI. XIV, figs. 3 a— h. 



Of this common and widely distributed species one spe- 

 cimen has been taken at Jan Mayen, depth 55 fathoms (The 

 Amdrup-expedition 1900) (Lundbeck 1. с). 



M. perspinosa Ldbck. 



1905. Myxüla perspinosa Lundbeck, The Danish Ingolf-Exp. VI, 2, 147, 

 PL V, fig. I, PI. XIV, figs, 7a— е. 



One specimen of this species was taken at Jan Mayen ^^/e 



1900, depth 50—60 fathoms (The Amdrup-expedition 1900) 



(Lundbeck 1. с). 



Lissodendoryx Tops. 



L. Sophia Frstdt. 



1887. Esperia Sophia Fristedt, Vega-Exp. vetensk. lakttag. IV, 451, PI. 25, 



figs. 30—32. 

 1905. Lissodendoryx Sophia, Lundbeck, The Danish Ingolf-Exp. VI, 2, 156, 



PI. V, fig. 6, PI XV, fig. 5. 



One specimen was taken by the Swedish arctic expedition 

 1883 at the East-coast of Greenland, depth 130 fathoms (Fri- 

 stedt 1. c). 



L. indistincta Frstdt. 



1887. Hastatus indistinctus Fristedt, Vega-Exp. vetensk. lakttag. IV, 444, 



PI. 25, figs. 13-19. 

 1905. Lissodendoryx indistincta, Lundbeck, The Danish Ingolf-Exp. VI, 2, 



162, PI. V, fig. 10, PI. XVI, figs. 3a-h. 



Two specimens taken at Hekla Havn, depth 5 — 12 fathoms 



(The Ryder-expedition 1891—92) (Lundbeck 1 с). 



L. complicata Arm. Hans. 

 1885. Reniera complicata Armauer Hansen, The Norweg. North -Atlantic Exp. 



XIII, Spongiadæ, 7, PI, I, flg. 8, PI. VI, fig. 8. 

 1905. Lissodendoryx complicata, LundJ)eck, The Danish Ingolf-Exp. VI, 2, 



166, PI. V, fig. Il, PL XVI, figs. 4a-g. 



Some fragments have been taken south of Jan Mayen 70° 



32' lat. N., 8° 10' long. W ^Ve 1891, depth 470 fathoms (The 



Ryder-expedition 1891 — 92) (Lundbeck 1. с). The species is a 

 native of the cold area. 



