42 AUSTRALASIAN ANTARCTIC EXPEDITION. 



Just as there is a variety of H . spinosa (Lagisca antarctica or L. vesiculosa), so 

 here we have a variety of H. tuberosa, differentiated by the great size of the tubercles ; 

 but here they are conical, rather than spherical, and recall those figured by Kinberg 

 for H. patagvnica (1857, pi. V, fig. 22 H). 



Localities . 



Boat Harbour, winter quarters, Station A, 3J fathoms (one individual). 



Station B, 25 fathoms (fifteen). 



Station C, Commonwealth Bay, 15-20 fathoms (one). 



Station D, 45-50 fathoms (one). 



Station B, 55-60 fathoms (two). 



Station 1, 350-400 fathoms (one). 



Station 3, 157 fathoms (one). 



Station 8, 120 fathoms (two). 



Distribution. S. Victoria Land; Bouvet Island (Ehlers). 



HAEMOTHOE ABYSSORUM Mclntosh. 



Eunoa abyssorum Mclntosh (1885), p. 73, pi. XI A, figs. 14-16. 

 (Plate 6, figs. 30-35.) 



Three specimens of this species were obtained, and as the type was dried up, so 

 that Mclntosh was unable to say much about its anatomy, an opportunity occurs of 

 adding to that brief account. 



The largest of them is 29 mm. long, with 35 segments, but is imperfect. It is 

 broadest at about segments 7-12, thence tapering. Here it measures 5 mm. across 

 the body, 10 mm. over the parapods, and 12.5 mm., including the chsetae. At segment 

 20 these numbers are 3 mm., 6 mm., and 9 mm. respectively, so it is clear that only 

 a few segments are missing. 



The ventral surface of the body is purplish, darker posteriorly, and the pigment 

 extends on to the feet, where, however, it becomes fainter. The dorsum is devoid of 

 pigment. 



There ,ue fifteen pairs of elytra, which are present on one of the smaller 

 individuals, 'ihey are colourless, translucent, and rather thick, but towards the 

 external marg.n they become slightly yellowish and opaque. They are smooth not 

 only to the naked eye, but even microscopically, except that over the outer area there 

 are numerous minute, rounded refringent tubercles, which seem to be the cause of the 

 yellowness here (fig. 33). 



The prostomium (fig. 30) is broad, with well-developed peaks on the outer side 

 of the bases of the lateral tentacles; both pairs of eyes are on the dorsal surface, and 

 lie behind the middle of its length. The two eyes of one side are thus close together, 



