POLYCMTA—BENHAM. 
35 
The ventral chsetse (fig. 17-19) are about twenty-four in number; each is, 
shaped like a spear head, the frilled region is short and marked by many very 
fine closely-set pectinated frills which take an undulating course across the bristle, 
and are visible along both edges. The chsetse are not all alike, some being more 
slender and having a longer frilled region than others. The frills commence at some 
distance from the tip, which is curved and carries a short sub-apical tooth. 
I have placed this species in Willey’s genus, which is defined as follows 
“ A polynoid; antennse arising at a lower level than the tentaculum inrpar, segments 
and elytra numerous.” It does not fit into any other genus, though it is remarkable 
that the two species should occur in such widely separated localities, the type species 
living on the shores of Ceylon. 
Locality .— 
Off Maria Island, Tasmania, 1,300 fathoms. 
Genus Physalidonotus Ehlers. 
Physalidonotus rugosus Benham. 
Benham (1915), p. 182, pi. XXXVIII, figs. 16-22 ; pi. XXXIX, figs. 23-25. 
Two individuals were obtained in the neighbourhood of the spot at which the 
type was taken. 
locality.—- Off Maria Island, Tasmania, 65 fathoms. 
Distribution .—Bass Strait, coast of Victoria. 
Genus Harmothoe Kinberg sensu-lato. 
Harmothoe spinosa Kinberg. 
H. spinosa Kinberg (1855), p. 386. 
H. spinosa Kinberg (1857), p. 21, pi. VI, fig. 31. 
Polynoe fullo Grube (1877), p. 515. 
P. vesiculosa Grube (1877), p. 514. 
Lagisca ant arctic a McIntosh (1885), p. 80, pi. XIII, fig. 1 ; pi. XVI, fig. 3 ; 
pi. XVIII, fig. 1 ; pi. VIA, figs. 10-11. 
L. magellanica McIntosh (1885), p. 82, and the varieties of this species. 
H. spinosa Ehlers (1897), p. 12. 
H. spinosa Willey (1902), p. 264, pi. XL1, figs. 1-4 ; pi. XLIII, figs. 1, 2, 4-8. 
H. spinosa Ehlers (1908), p. 43. 
H. spinosa Ehlers (1912), p. 10, pi. I, fig. 8. 
H. spinosa Ehlers (1913), p. 438, pi. XXVI, figs. 1-12. 
H. spinosa Gravier (1906), p. 33. 
H . spinosa Gravier (1911), p. 88, pi. V, figs. 54-59 ; pi. VI, figs, 64-69. 
H. spinosa Fauvel (1916), p. 421, pi. VIII, figs. 8-9 (chsetse). 
H. spinosa Fauvel (1917), p. 179, pi. VI, figs. 47-48 (head). 
(Plate fig. 21.) 
