300 BAENACLES FROM DEEP-SEA CABLES. 



slightly introverted point ; the apex is subangulate and a little ex- 

 panded. The transverse basal processes are strongly earinate, their 

 carinae meeting that of the dorsum at a right angle but not extend- 

 ing so far outwards towards the surface of the capitulum. The 

 inner surface of the carina is flat above; below it is deeply but 

 narrowly grooved. The basal floor is slightly concave inwards and 

 terminates at either side in a blunt tubercle. 



Peduxcle. 



The peduncle is slender and cylindrical, sometimes nearly as 

 long as the carina. In the specimens examined it is much wrinkled, 

 but this condition is probably artificial. It is quite naked. 



Cirri, etc. 



1st Cirrus short, slender, with the basal segments of both rami 

 very long; the anterior ramus a little longer than the posterior; 

 both rami somewhat bluntly pointed. 



2nd-6th Cirri slender, rather short, witli the anterior bristles 

 numerous and well-developed, long and rather stout, the posterior 

 hairs forming short transverse bands across the posterior surface of 

 the tips of the segments; some of these hairs on some segments 

 longer than the segment, but the majority distinctly shorter. 



Anal appendages short, conical, having on the upper part of 

 the opposed surfaces a* small, ovoid, flattened squamose area ; a 

 scanty vertical row of bristles borne on the upper part of this area 

 and extending over the tip of the appendage ; the bristles of variable 

 length but the apical one much the longest. 



Penis long, slender, smooth; the tip rather blunt, bearing a 

 dense bunch of soft hairs. 



Mouth-Parts. 



Labrum short, triangular, armed at its base with a semicir- 

 cular row of minute conical teeth; the teeth in the middle part of 

 the row much smaller than those in the outer parts. Labral palps 

 short and rather stout. 



Mandibles evidently very variable, with a considerable number 

 of teeth, narrow and long. 



Maxillae broad ; the only chaetae of large size at the outer 

 angle; a well-marked excavation occupying nearly one-half of the 

 margin, the inner lobe of which is broadly rounded; a few short 

 bristles present at the base of the excavation; no stout chaetae on 

 the lower part of the margin. 



Outer maxilla of normal type. 



Jour. Straits Branch 



