COMPLETE HARTMAX: POLYCHAETES FROM CALIFORNIA 89 



The notopodial postsetal lobe of the first parapodial segment is fim- 

 briated ; its corresponding neuropodial lobe is expanded and somewhat 

 trifoliate. 



Setae in anterior segments are arranged in vertical series; all are 

 slender, distally pointed. Neuropodial, acicular hooded hooks are first 

 present from segment 25, alternating with slender, longer, distally 

 pointed setae; this arrangement continues posteriorly to the end of the 

 body. 



A posterior end, presumably of this species, has 3 long, cirriform 

 appendages, each longer than the combined length of the last 5 segments ; 

 this is in contrast to D. uncinata described from the Gulf of Mexico. 



These specimens have been compared with the type collection and 

 found to agree well in all details but the character of the anal appendages. 



Dispio uncinata is known from western Florida, Gulf of Mexico, in 

 shallow water, and from southern California, in shallow sandy benthos. 



Genus Spio Fabricius, 1785 



Type S. filicornis (Miiller) 1776 



Spio punctata, new species 



Plate 11, figs. 1-3 



Spio, n.sp. Hartman, 1955a, p. 130. 



Collections. Many individuals were taken from shelf depths, es- 

 pecially on the leeward and eastern sides of Santa Catalina Island ; the 

 type was selected from VELERO IV Sta. 5095, a mile from East 

 End Light, Santa Catalina Island, in 40 fms where the grab took 0.81 

 cuft of fine greenish brown sand. 



A larger individual measures about 60 mm long; the body is widest 

 in the branchial region and tapers posteriorly. The prostomium is 

 broadest in front, approximately pentagonal in shape, and terminates 

 postmedially in a short V-shaped nuchal lobe located between the palpal 

 bases. Near its midlength, and in front of the palpal insertions, the 

 prostomium has numerous small black eyespots in dispersed arrange- 

 ment (PI. 11, fig. 1), or they may be so faded (in alcohol preservation) 

 as to be nearly invisible. 



Branchiae are present from the first parapodial segment; they are 

 long, cirriform, free from the postsetal lobe (PI. 11, fig. 2), and in- 

 crease in width farther back; they continue through the anterior and 

 into middle regions, for about 30 to 50 segments. 



