NO. 13 POLYCHAETOUS ANNELIDS HARTMAN 7 



half as heavy as the neurosetal, and their setae extend laterally only 

 about as far as the bases of the neuropodial setae. Notopodial setae 

 are stouter than the neuropodial setae, they are serrated along their 

 lateral edge and end in a blunt, bifid tip (fig. I, ;'). Neuropodial setae 

 are much more numerous, and finer ; the superiormost has a long ser- 

 rated blade (fig. I, k), which is about four times as long as that of 

 the inferiormost seta (fig. I, /). 



The elytra appear smooth, with entire margins, but under low mag- 

 nification they are seen to have minute marginal papillae (fig. I, g) 

 and some widely spaced elytral tubercles, posterior to the elytral scar. 

 The larger tubercles are unique in that a harder, chitinous basal por- 

 tion supports a soft, terminal papilla (fig. i, h) . 



This individual approaches the description of S. tcntaculatus Horst 

 (1917, p. 100) in some respects, but it differs in having notopodial 

 setae that are distinctly serrated. 



POLYODONTIDAE 



PEISIDICE ASPERA Johnson 



Pcisidice aspera Johnson, 1897, p. 184. 



Collection. — Station No. 20-38 ; 1 specimen. 



A minute specimen, less than 5 mm. long, with only about 30 setig- 

 erous segments, and only 16 pairs of elytra. The dorsum is medially 

 exposed and discloses a papillated dorsal body surface. Since this 

 was taken from the anchor chain, it may represent an early, settling, 

 postlarval stage. 



Distribution. — Central and southern California; Alaska; British 

 Columbia ; Galapagos. This record extends the range far to the south, 

 into tropical waters. 



SfGALIONIDAE 



EUSIGALION SPINOSUM Hartman 

 Eusigalion spinosum Hartman (Allan Hancock Foundation, in press). 



Collection. — Station No. 5-38; 1 specimen. 



Length 40 mm., consists of 90 segments, a posterior portion miss- 

 ing. Pale or white, with a dusky longitudinal stripe over the neural 

 area. Elytra white, firmly attached. 



Distribution. — Southern California, south to Lower California, 

 Mexico. 



