88 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 25 



distally pointed setae, most bushy on setigerous segments 2 to 5. The 

 fifth parapodium has a broad, thin flange below the parapodial base; 

 its free margin is conspicuously fimbriated. The sixth is similarly 

 fimbriated, and the ninth has a series of 9 to 10 longer, larger lobes, 

 forming transverse series. These features are reminiscent of similar parts 

 present in some disomid species. 



These specimens are considered identical with S. fragmentata Wesen- 

 berg-Lund (1951, p. 59), first described from off Iceland, in 6 meters, 

 on an ocean bottom of shells and clay. 



Skardaria fragmentata remains known only through these records. 



Family SPIONIDAE 



This family is represented in California by at least 44 species in 15 

 genera. Generic distinction is generally easy and has been simplified in 

 previous works (see Fauvel, 1927, p. 27; Hartman, 1941, p. 292; 

 Berkeley and Berkeley, 1952a, p. 13). The species described below are 

 either new to science, or new Pacific records. 



Genus Dispio Hartman, 1951 



Type D. uncinata Hartman, 1951 



Dispio uncinata Hartman, 1951 



Hartman, 1951b, pp. 87-90, pis. 22, 23. 



Collections. Numerous specimens from shallow (10 to 30 ft) depths 

 of southern California, in sandy sediments. 



Length is about 10 mm. The prostomium is nerinid, longer than wide 

 and tapers forward as a slender anterior palpode. There are 4 small 

 black eyes, disposed in a wide open crescent, embedded in its posterior 

 half. The peristomium is prolonged forward at the sides of the lobe to 

 near the anterior end of the prostomium and elevated as a pair of con- 

 spicuous thin wings, concealing the scars of attachment of the paired 

 palpi ; it is similar to the condition in Prionospio pinnata Ehlers. 



Branchiae are present from the first setigerous segment and continue 

 posteriorly through most or all of the body segments; they are fused 

 with the postsetal notopodial lobe. Accessory branchiae, characteristic of 

 the genus Dispio, are first present from the ninth segment, located on the 

 posterior side of postsetal lobes; the first one is a single small lobe; 

 farther back the size increases and also the number of branches, to 10 

 or more in digitate arrangement. 



