NO. 1 HARTMAN : POLYCHAETOUS ANNELIDS 165 



Holotype. — ^AHF no. 50. 



Type locality. — East side of San Nicolas Island, California, in 30 

 fms (coll. 1120-40). 



Distribution. — Common in dredgings in sandy and muddy bottoms, 

 off southern California, north to Carmel Bay ; in depths of 6 to 225 fms. 



Lumbrineris cruzensis, new species 

 Plate 12, Figs. 263-269 



Collections.— \2^^A\ (2) ; 1304-41 (1). 



L. cruzensis is smaller than most lumbrinerids; length of 90 seg- 

 ments, somewhat incomplete posteriorly, is only 30 mm; width, with 

 parapodia, about 2 mm. The prostomium is short, bluntly conical, and 

 lacks pigment pattern (preserved). 



Anterior parapodia have short, blunt, presetal lobes that appear some- 

 what inflated and longer, triangular postsetal lobes; a sixth parapodium 

 has the proportions shown in pi. 12, fig. 268. Farther back these parts be- 

 come gradually slenderer, but the clearly bilabiate (pi. 12, fig. 269) con- 

 dition is not attained until about setiger 57 to 60, and thereafter both 

 presetal and postsetal lobes are slender, cirriform, about equally long, ap- 

 proximating the length of their respective parapodial base, but much 

 slenderer. Proceeding back, both lobes increase their length, but the post- 

 setal comes to surpass the presetal one (pi. 12, fig. 269). 



Composite hooks (pi. 12, fig. 264) are present through setigers one 

 to 16 (or near that), accompanied by limbate setae and about 2 to 4 

 yellow acicula. A sixth parapodium is provided with 5 superior limbate 

 setae, 4 composite hooks, and one smaller, inferior bilimbate seta, and 

 2 yellow acicula. A twelfth parapodium is provided with 4 limbate setae, 

 4 composite hooks resembling those in front, an inferior limbate seta, and 

 4 yellow acicula. Anterior hooded hooks have a comparatively short ap- 

 pendage, but it decreases slightly in length from the first to sixteenth 

 parapodium. One from the twelfth parapodium is shown in pi. 12, fig. 

 264. The slender, limbate setae persist through a long anterior region, 

 but are perhaps entirely absent from the posterior half of the body; the 

 one subsuperior in position is the last to drop out. Acicula typically num- 

 ber 4 (to 2) in anterior parapodia; here they taper distally to a blunt 

 point, but have a long, pointed, translucent hood that projects from the 

 parapodial lobe. In posterior segments they typically number only 2 in a 

 parapodium, are somewhat thicker and blunter distally, and lack the 

 hood ; all are straight. 



