176 Prof. M'Intosh's Notes from the 



and subulate at the oOtli foot, and tlie upper lamella is 

 prominent and rounded inferiorly, whilst superiorly it is 

 acutely lanceolate. The upper bristles of the dorsal series 

 are long, slender, and finely tapered. A notch now separates 

 the two divisions of the foot. The ventral lamella is also 

 prominent and rounded, generally with a short peak. The 

 modified bristles vcntrally show a sharp and slightly hooked 

 point (PI. V. fig. 8), which under a high power is slightly 

 dotted. No wings are visible in either dorsal or ventral 

 bristles. 



A fragmentary <Sco/eco/epi5 (I), dredged in 35 fathoms amidst 

 greyish sand, stones, and ooze in the* Porcupine' Expedition 

 of 1869, shows certain novel features. The head is short, 

 with a slightly bilobed anterior border, which forms the base 

 of a triangle ending in a short subulate tentacle posteriorly. 

 No eyes are visible in the preparation. A little behind the an- 

 terior edge of the snout ventrally are two prominent rounded 

 peristomial papilhe in front of the mouth. The fragmentary 

 body consists of about 16 segments, at the posterior end of 

 ■which new segments and a tail are developing. It is flat- 

 tened dorsally and grooved in the median line ventrally, 

 ■whilst the sides are flanked by an extraordinary developmetit 

 of dull golden bristles, which at first sight makes an approach 

 to the condition in Evphrusyne. A kind of flap, vertically 

 elongated, occurs immediately behind the snout, but it does 

 not appear to have either bristle or branchia. Tiie first 

 bristled foot carries a branchia and long tufts of bristles 

 dorsally and ventrally ; but the condition of the foot 

 negatives a minute description. The bristles are of compara- 

 tively great length and strength, are findy tapered, and 

 conform to the usual arrangement in Scolecolepis, the upper 

 of the superior division being longest and curved upward 

 and back■s^•ard. No wings are visible. The bristles of the 

 inferior division form a dense group shorter than the supe- 

 rior, and they are curved backward. Focussing indicated a 

 margin on each side of the tapered tip, but no distinct wing 

 is visible. 



The great development of the superior lamella is soon 

 conspicuous, and at the 10th foot (PI. \1. tig. 9) it forms a 

 large lanceolate crest on the dorsum, the outer or inferior 

 edge being rounded, whilst the inner is acute. The branchia 

 appears to be subulate and to stretch inward over the dorsum, 

 but all had disappeared during the examination of the minute 

 specimen. The remarkably dense, strong, and boldly curved 

 dull golden bristles curve upward and backward, and narrow 



