222 



Annelida Chcetojpoda 



ering of pigment, interrupted by a narrow clear band in 

 the anterior part of the 4th segment. 



Body convex above, segmentation well marked. A few 

 of the anterior segments taper slightly. The body attains 

 its greatest width at the 7th segment, remaining unchanged 

 to the last 8 segments, whence it tapers quite rapidly. 

 Anal segment narrow, without appendages save the anal 

 cirri. 



Small fusiform papillse are scattered irregularly between 

 the feet, and at their bases, much more numerously in the 

 middle of the body than at either end. 



Setae, very short and of three kinds, two of which are 

 compound. One form has a stout basal article (f. 47), a 

 little longer than the appendix; there are 3 to 5 of these in 

 each bundle. The second form (f. 46), longer than the first, 

 has the appendix iongate, delicate, a little longer than the 

 stem, one or two to each foot; in both, the edge of the ap- 

 pendix is beset with short, stiff hairs. Of the simple setse 

 (f. 48) there is usually but one, sometimes two to each foot. 



Length, 3. 5°^""; greatest diameter, 0.25™"". Number of 

 segments, 33. 



A single specimen ; not recognized when collected, but 

 found afterwards in perfect condition in a lot of PiEDO- 



PHYLAX. 



In many respects this species is similar to S. pirifera 

 Clpd. {Ann. de Naples, p. 515, pi. xiv, f. 2), but differs 

 from it in the shape of the head, in the free terminal part 

 of the palpi, in the position of the eyes, and in the form of 

 the antennae and cirri. 



I have referred this species to SPH^ROfeYLLis, though 

 somewhat in doubt as to whether the name can be retained 

 for it. Claparede's original diagnosis of the genus was 

 defective and his figures misleading. Ehlers would seem 

 to have been perfectly justified in ascribing to the genus five 



