82 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 7 



superior, straight, elongate, hastate setae, more or less hirsute (desig- 

 nated pseudo-penicillatae bj' Horst, 1917, p. 133) but no penicillate 

 setae such as are present in Panthalis (see below), (2) median, stout, 

 acicular spine-like setae with (pi. 24, fig. 292) or without a distal 

 arista, and (3) inferior, curved, sickle-like, serrulate setae (pi. 24, fig. 

 298). Some anterior parapodia, including the first, usually have some 

 slender capillary setae. Branchiae, in the form of digitate parapodial 

 lobulae, are present or absent. 



The genus Polyodontes Renier includes the following described 

 species : 



1. Panthalis adumbrata Hoagland (1920, p. 606, pi. 46, figs. 

 9-14) from the Philippine Islands. 



Panthalis helleri Holly (1934, pp. 148-149, figs. 1, 2) from 

 the Philippine Islands is probably identical with P. adumbrata. 



2. Polyodontes atro-marginatus Horst (1917, pp. 133-134, pi. 29, 

 figs. 5-7) from the Indo-Pacific. 



3. Eupompe australiensis Mcintosh (1885, pp. 135-139, pi. 21, 

 figs. 4, 5, pi. 23, fig. 8, pi. 24, fig. 4) from Australia. 



4. Panthalis panamensis Chamberlin (1919a, pp. 86-89, pi. 11, 

 figs. 4-8, pi. 12, figs. 1-6) from Panama. 



5. Polyodontes maxillosus Ranzani (see Fauvel, 1923, pp. 97-98, 

 fig. 37) from southern Europe. 



6. Panthalis oculea Treadwell (1902, pp. 188-189, figs. 14-18) 

 from the West Indies. 



7. Polyodontes sibogae Horst (1917, pp. 131-132, pi. 28, figs. 

 4-10) from New Guinea. According to Fauvel (1932, p. 37) 

 this is identical with Polyodontes melanonotiis (Grube). 



The nature of the superiormost neuropodial setae of the following 

 species is not known. 



Eupompe aurorea Grube (1876, p. 71) from unknown locality. 

 Polyodontes gulo Grube (1876, p. 72) from the Red Sea. 

 Eupompe indica Beddard (1889, pp. 256-258) from the Mergui Archi- 

 pelago. 

 Polyodontes tidemani Pflugfelder (1932, pp. 286-288, figs. 6-7) from 

 the Indo-Pacific. 

 The following species, that have been described as Polyodontes, are 

 transferred to other genera, as indicated: 



