POLYNOIDAE 8s 



— Elytral tubercles numerous, spread over most of the surface ... ... ... ... 5 



5. Smaller elytral tubercles bollard-shaped ... Harmothoe ernesti 



— Smaller elytral tubercles hook-shaped ... ... 6 



6. Hinder border of elytra usually carrying a few large conical vesicles. About 37 segments 



Harmothoe spinosa 



— Hinder border of elytra usually carrying long curved spines. About 40 segments 



Harmothoe spinosa, \a.r. lagiscoides 



7. Elytra with large vesicles 8 



— Elytra without large vesicles ... ... ... ... ... ... ... ... ... 9 



8. Elytral vesicles pear-shaped with an apical papilla ... ... ... Harmothoe exanthema 



— Elytral vesicles globular, without an apical papilla . . . Harmothoe exanthema var. bergstromi 



9. Elytra with only a few cilia at the hinder border Harmothoe brevipalpa 



— Elytra ciliated over most of the surface ... ... Harmothoe brevipalpa, var. ciliata 



Harmothoe magellanica (Mcintosh). 



Lagisca magellanica, Mcintosh, 1885, p. 82, pi. xiii, fig. 5; pi. xviii, figs. 3-4; pi. viiA, figs. 1-2. 

 Harmothoe magellanica, Bergstrom, 1916, p. 280, pi. iv, figs. 1-3. 

 Monro, 1930, p. 54. 

 Augener, ig^^a, p. 18. 



Occurrence. St. 123 (2); 156 (i juv.); WS 27 (4); WS 225 (4); WS 228 (i); WS 239 (4); 

 WS 244 (5); WS 246 (3); WS 249 (i); WS 764 (i); WS 776 (i); WS 803 (i); WS 825 (5); WS 840 

 (i); WS 852 (10); WS 871 (numerous). 



Specific characters. There may be about 15 segments behind the last pair of elytra. 

 There are often small dark spots on the elytra which are smooth except for a small 

 patch of minute tubercles near the umbilicus. 



The dorsal bristles are stout, numerous and lightly striated ; the ventral are long and 

 clearly bidentate, and the upper ventral bristles have the toothing continued much 

 farther down the shaft than the rest. 



Remarks. As the hinder end of the body is left uncovered by the elytra in this species, 

 it would perhaps be preferable to refer it to Lagisca rather than to Harmothoe. 



Harmothoe exanthema (Grube). 



Bergstrom, 1916, p. 287, pi. iii, fig. 5. 



Occurrence. St. 53 (3); WS 582 (i); WS 762 (2); Puerto Bueno, Sarmiento Channel, 13 m. 

 (2 juv.). 



Specific characters. About 40 chaetigers. Anterior pair of eyes at the sides of the 

 head. The elytra do not quite cover the hinder extremity. They are provided with small, 

 conical tubercles and also at their hinder border with a few large pear-shaped vesicles 

 surmounted by a long papilla. The dorsal bristles are strongly pectinated and the ventral 

 are both unidentate and bidentate. 



This species is allied to H. ernesti, Augener, and seems to live in shallow water. 



Harmothoe exanthema (Grube), var. bergstromi, var.nov. (Fig. 4 a-c). 



Occurrence. St. WS 221 (i); WS 583 (i); WS 834 (5). 



Varietal characters. The pyriform tubercles with an apical papilla are absent and 

 the elytra (Fig. 4 a) carry in addition to numerous small acuminate tubercles (Fig. 4 b) 



4-2 



