1903.] NATURAL SCIENXES OF PHILADELPHIA. 485 



An abundant species represented by numerous examples from the 

 following stations: Sagami Bay, 3,695, 175-190 fms.; 3,698, 153 fms.; 

 3,704, 94 fms.; North Japan, 3,771, 62 fms.; 3,775, 57 fms., type. 



Fraxilla challengeriae Mcintosh? 



A small fragment from the middle of the body bears setse and crochets* 

 exactly like those of this species, but the reference is quite uncertain. 

 The originals were dredged off the coast of Portugal. 



Suruga Bay, 3,707, 63-75 fms. 



Axiothea campanulata sp. nov. (PI. XXVII, figs. 97, 98, 99.) 



A single complete example represents this fine species. The length 

 is 185 mm., the greatest diameter 6 mm., the number of somites 23, 

 of which nineteen are setigerous. 



Prostomium and peristomium completely coalesced to form the 

 head, which is truncate at an angle of about 45°, and is twice as 

 long below as above. Cephalic plate broad oval in outhne; the free 

 margin nearly equally developed all around except where interrupted 

 anteriorly by the free end of the median ridge, but more erect pos- 

 teriorly, its margin smooth and entire, except for a shallow notch and 

 reentering angle on each side about ^ of the distance from the anterior 

 end and opposite the posterior end of median ridge, anterior to which 

 the margin rises slightly to form the anterior free lobes ; median ridge 

 pronounced, but short, reaching from the anterior end for i length of 

 plate and ending in front in a small rounded, not expanded, lobe, which 

 occupies the opening in the limbate margin at that point, bounded lat- 

 erally by deep, narrow longitudinal chinks (nuchal sense-organs), from 

 which a broader transverse groove passes to the lateral margin on each 

 side, meeting it just in front of the notch. Mouth directed ventrad, 

 surrounded by a regularly ribbed ring or wreath which is incomplete 

 only anteriorly, the interval being occupied by the wrinkled base of 

 the nearly triangular prostomial lobe (palpode), the rounded apex 

 of which curves upward to join the anterior end of the median cephalic 

 ridge. 



First 7 setigerous somites cylindrical, short, diameter and length 

 about equal, no especially developed collar on any, but the anterior 

 margin of each somewhat prolonged as a fold enveloping the preceding 

 somite, especially on the ventral side; anterior fold of somites V to 

 VIII glandularly thickened. The next apparent somite is elongated 

 and bears setse at both anterior and posterior ends, whereas the pre- 

 ceding somites bear them anteriorly and the succeeding posteriorly 

 only, and therefore, although there is no indication of a furrow, is con- 



