1923] NATURAL SCIENCES OF PHILADELPHIA 233 



eighteen slender filaments of various lengths. The longest are 

 about one-third of the diameter of the funnel, but much shorter 

 ones alternate with them, especially on the dorsal side and one 

 such occupies the median ventral line in continuation of the neural 

 ridge. 



Anterior notopodial setae bundles are rather large, double-ranked, 

 of numerous slender, simi)le, capillary, bilimbate setse of two sizes. 

 Further back all are broken but are apparently of the same form. 

 At the caudal end the fascicles are smaller. Neuropodials on II, 

 III and IV are single (rarely 2), simple spines slightly curved or 

 hooked at the tip (Plate XVIII, fig. 39). On all succeeding setigerous 

 somites they are true crochets. On V, they number at least twelve 

 in a single series (Plate XVIII, fig. 40). They are small, dark colored 

 and closely striated. The shoulder is a marked but gradual swelling. 

 The head is small and expands rather abruptly; the crest full, low 

 and rounded, of four to six median teeth of diminishing size, flanked 

 by a few smaller ones; the beak rather small and strongly hooked 

 and the delicate guard of peculiar form in that the filaments arise 

 in a pinnate instead of the usual palmate figure. On X and the 

 last two caudal setigerous segments the crochets are more numerous 

 and are somewhat larger with the crest much higher and composed 

 of seven or more median and several lateral teeth, the beak more 

 strongly hooked and the filaments of the guard longer and less 

 obviously pinnate. 



Other anterior fragments agree with the type but only the one 

 caudal end is known. 



Fragments of associated tubes are l| to 2 mm. in diameter, 

 very thin and fragile and formed of silt containing many foraminifer 

 shells. 



Known from Station 4433, off Santa Rosa Island, 243-265 fath- 

 oms, green mud. 



Maldane carinata sp. nov. 



Type a complete specimen of twent5''-one somites, prostomium 

 and p3'gidium, measuring 79 mm. long and 2.3 mm. in diameter, 

 which is very uniform throughout the length. 



Cephalic disk broadly elliptical in outline, the width about two- 

 thirds the length. Limbate margin divided by a pair of deep smoot h 

 incisions into a pair of lateral flaring lobes or wings and a jiosterior 

 appressed lobe or collar. The former forms about three-fourths of 

 the length and has a perfectly entire margin which is slightly auric- 

 ulate at the caudal end. The collar lobe is high, stiff and erect, 

 its margin smooth with a very wide, shallow, median emargination. 

 It arises from the posterior border of the peristomium and is closely 

 appressed to the head, forming a deep narrow pit. Palpode 



