POLYCMTA—BENHAM. 
39 
Commonwealth Bay— 
Station B, 25 fathoms (sixty-five). 
Station C, 15-20 fathoms (fourteen). 
Station D, 45-50 fathoms (twelve). 
Station E, 55-60 fathoms (eleven). 
Station 1, 340-400 fathoms (nine). 
Station 3, 157 fathoms (one). 
Station 8, 120 fathoms (five). 
Station 10, 325 fathoms (two). 
Station 12, 110 fathoms (twelve). 
Distribution. —Magellan Strait (Kinberg, Grube, McIntosh), Marion Island, Prince 
Edward Island (McIntosh), Cape Adare (Willey), Coulman Island, Kaiser 
Wilhelm II Land (Elders), Graham’s Land (Gravier), Falkland Islands, 
St. Vincent Gulf and Spencer Gulf, South Australia (Fauvel)* 
One of the specimens from Station C has a parasitic Copepod attached between 
two of the parpaodia, as figured by Wdley (pi. XLI, fig. 4). 
Harmothoe tuberosa Elders. 
Harmothos spinosa, variety Elders (1908), p. 43. 
Harmothoe tuberosa Ehlers (1912), p. 11, pi. I, figs. 1-7. 
(Plate 6, figs. 22-29.) 
The account given by Ehlers, apart from one or two details, is adequate. The 
coloured figure represents a much redder tint than is exhibited by any in the present 
collection, where the worms are grayer, sometimes paler, sometimes darker, sometimes 
with a purplish tone, sometimes bluish, and usually with a metallic lustre. 
It does not appear to attain the dimensions of H. spinosa, for the largest individual 
measures only 50 mm., with a diameter over the elytra of 15 mm. The body itself, 
measured on the ventral surface at segments 7-18, is 7 mm. across: thence it tapers 
gradually, so that at the 26th segment its breadth is 5 mm. 
The species is apparently much rarer than H. spinosa, for though it occurred 
in eight hauls, which yielded twenty-six individuals, and except at a depth of 25 fathoms 
(Station B), only one or two were obtained in a haul. It is apparently commoner at 
the less depths, for at this Station B as many as fifteen specimens were brought up 
by the dredge. 
* Fauvel mentions a specimen as occurring as a commensal in a tube of Thelepus »p. 
