REVISION OF PILARGIDAE — PETTIBONE 165 



four lack a median antenna: A.falcata, A. matsunagaensis, A. hamata, 

 and A. papillosa. One species, A. quellina, lacks lateral antennae. 

 The following species have been referred to Ancistrosyllis: 



A. groenlandica Mcintosh, 1879, p. 502. Davis Strait, Greenland. See 



page 166. 

 A. albini Langerhans, 1881, p. 107. Canary Islands, North Atlantic. Re- 

 ferred to Synelmis, sec page 191. 

 A. robusta Ehlers, 1908, p. 59. South Atlantic. Referred to Sigambra, 



see page 181. 

 A. rigida Fauvel, 1919, p. 337. Red Sea. Referred to Synelmis albini, 



see page 191. 

 A. constricta Southern, 1921, p. 573. India. Referred to Sigambra, see 



page 181. 

 A. gracilis Hessle, 1925, p. 34. Off Japan. Referred to Synelmis albini, 



see page 191. 

 A. gorgojiensis Monro, 1933a, p. 26. Pacific side of Panama. Referred to 



Synelmis albini, see page 191. 

 A. ientacidata Treadwell, 1941, p. 1. Long Island, N.Y. Referred to 



Sigambra, see page 182. 

 A. bassi Hartman, 1945, p. 15. Florida and North Carolina. Referred to 



Sigambra, see page 186. 

 A. ocellata Hartmann-Schroder, 1959, p. 109. Central America. Referred to 



Sigambra, see page 181. 

 A. hanaokai Kitamori, 1960, p. 1086. Seto-Inland Sea. Referred to 



Sigambra, see page 181. 

 A. longicirrata Berkeley and Berkeley, 1961, p. 658. Off Peru, in plankton. 



Synonym of Podarmns ploa, Polynoidae, see page 200. 

 A. quellina Wesenberg-Lund, 1962, p. 68. Chile. 

 A. pilargiformis Uschakov and Wu, 1962, p. 75. Yellow Sea. Referred to 



Cabira, see page 177. 

 A. parva Day, 1963, p. 395. South Africa. Referred to Sigambra, see 



page 181. 

 A. breviceps Ilartman, 1963, p. 13. Southern Cahfornia, see page 168. 



The following species are herein referred to Ancistrosyllis: 



A.falcata (Day, 1957, p. 70), as Pilargis falcata. South Africa. 



A. matsunagaensis (Kitamori, 1960, p. 1088), as Pilargis matsunagaensis. 

 Seto-Inland Sea, Japan. 



A. hamata (Hartman, 1960, p. 88), as Pilargis hamatus. Southern Cali- 

 fornia. See page 168. 



A. papillosa (Jones, 1961, p. 3), as Ancistargis papillosus. Florida. See 

 page 170. 



A. harimanae, new species. Chesapeake Bay. See page 172. 



A. jonesi, new species. Chesapeake Bay. See page 173. 



Key to the Species of Ancistrosyllis 



1. Ventral cirri beginning on setiger 1. With lateral antennae. Tentacular 



cirri 2 pairs. With notoacicula 2 



Ventral cirri beginning on setiger 3-4 5 



