34 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 7 



Halosydna vtrgini Kinberg (1855, p. 384) from Honolulu may be 

 close to H. parva. Its identity is doubtful. Another closely related 

 species is Polynoe marginata Grube (1876, p. 62) from Callao, Peru. 

 Augener (1906, p. 119) reported the type missing from the museum at 

 Copenhagen, where it was said to have been deposited. 



Distribution. — Chile; Peru; Ecuador; Gulf of California, Mexico; 

 Galapagos. Shore to 15 fms. 



Halosydna brevlsetosa Kinberg 



Halosydna brevisetosa Kinberg, 1855, p. 385; 1910, p. 18, pi. 5, fig. 25; 



Monro, 1928c, pp. 311-312 (not Treadwell, 1902, p. 186; see 



Hartman, 1938, p. 110). 

 Polynoe brevisetosa Johnson, 1897, pp. 167-170, pi. 6, fig. 24, pi. 7, figs. 



31, 40, pi. 8, fig. 46. 

 Lepidonotus insignis Baird, 1863, pp. 106-107. 

 Halosydna insignis Moore, 1908, p. 330; 1910, pp. 329-331; Berkeley, 



1923, p. 212; Monro, 1928c, p. 311. 

 Polynoe insignis Johnson, 1901, pp. 387-388. 

 Lepidonotus grubei Baird, 1863, pp. 107-108; 1865, pp. 189-190. 



Collections.— ^n-Z^, 882-38, 885-38, 886-38, 901-38, 902-38, 

 904-38, 906-38. Numerous individuals. 



Distribution. — ^Alaska, south to southern California. Intertidal to 

 16 fms. 



Halosydna johnsoni (Darboux) 



Polynoe reticulata Johnson, 1897, pp. 170-172, pi. 7, figs. 32, 41, pi. 8, 



fig. 47 (not Claparede, 1868). 

 Lepidonotus johnsoni Darboux, 1899, p. 246, footnote. 

 Polynoe calif ornica Johnson, 1901, p. 387. 

 Halosydna calif ornica Moore, 1910, p. 331 ; Treadwell, 1914, pp. 180- 



181. 

 Halosydna macrocephala Essenberg, 1917, pp. 53-55, pi. 3, figs. 22-33. 

 f Halosydna reticulata Monro, 1928a, pp. 563-565. 



Collections.— 902-?>^, 903-38, 905-38, 906-38. 10 specimens. 



This species was originally given a preoccupied name (see synonymy 

 above). In a small footnote, Darboux (1899, p. 246) renamed it, but 

 the note has apparently been overlooked. This name predates Johnson's 

 revision (1901, p. 387). 



