TETRAXONIDA. 35 



Topsent (31. p. 70) records a new species, Artemisina <Ii<ui<ii', from Booth- Wandcl 

 Island, Antarctic, apparently very closely related to A. fi/>olt!!x. The 'Discovery' 

 specimen resembles A. dianae in having curved styles of the same length, but they 

 are narrower ; and the spiued toxa are much smaller in the first species. 



The specimen was dredged near Winter Quarters, off Hut Point, 25-30 fms. 



The 'Challenger' obtained specimens from Kerguelen Island, 20-60 fms.; and 

 the Danish Ingolf Exp. from East Greenland, depth ? , Lundbeck. 



ESPERIOPSIS VILLOSA. 



(Plate XX., figs. 3, 3a-c, and Plate XXIV., figs. 9a-lr.) 

 1*71. Esperiopsis villosa Carter (1. p. 21;)). 



iss7. Exfirriii/isix rUlnsfi- Fristcdt (7. p. 451). 



1904. Espcrinpsis villosa Topscnt (30. p. 211). 



1905. Esperiopsis villosa Lundbeck (13. p. 9). 



The single specimen, which has been broken off from its attachment, is massive 

 below, but divides above into two cylindrical lobes. The colour is pale brown in spirit. 



A few small oscules, evidently much contracted, occur at the summits of the lobes. 

 The surface is finely villous, from the presence of the projecting points of fan-like 

 lines of oxeas. 



Here and there the flesh has become macerated away, leaving fluffy lines of fine 

 skeleton fibres. 



The only difference worthy of mention that I can find bet \veen the Northern and 

 Antarctic specimens is the absence of the placocheles or isochelae palmatae with broad 

 shafts. I can only discover two kinds of isochelae palmatae. The sigmata occur 

 in many sizes. Some have bifurcated terminations, as figured by Fristcdt, and 

 Lundbeck. 



Spicules. Megasclcres. Styles 671 x 18 M, fusiform, straight, occasionally with 

 head slightly bent. 



The styles in Carter's type from Faroe arc almost identical in character. 



Mieroscleres. Larger palmate isochelae, 43 /u long, 9'75/u broad, length of 

 teeth, 16 M. 



Smaller palmate isochelae, 18/u long, 4 M broad. Sigmata, numerous, varying from 

 small up to very large sizes. 



The distribution of this species is very interesting, occurring as it does in Arctic 

 and sul)- Arctic waters ; then, as an intermediate link between Arctic and Antarctic, in 

 deep water off the Azores. 



The specimen was dredged near Winter Quarters, in Ab-Munlo May, -'0 fms. 



This species has been found (l) Between Scotland and Fame, 440 frns., 

 Carter; E. Coast of Greenland, 2f>4 in. (140 fms.), Kristedt ; off Iceland, Denmark 

 Strait and Davis Strait, 44-553 fms., Lundbrrk ; Azores 2,252 m. (1,196 fms.), 

 Topscut. 



