LAGISCA FLOCCOSA. 301 



entire surface, with the exception of a small area at the anterior and inner border, is 

 densely covered with minute spines, which are longest towards the outer border. The 

 posterior edge, again, has just within the margin a series of soft globular papillae 

 arranged at intervals and visible under a lens. Some are slightly clavate in outline, 

 while the tip in others is truncate or slightly nodular. They are few in number on the 

 last scales. A few short slender cilia occur at the outer or posterior margin. The 

 under surface is iridescent, and the scar for the pedicle is near the hilus or indentation, 

 where it is present, on the outer border. The first pair of scales have a few short cilia 

 on the inner border, and a well-marked series of clavate cilia on the outer and anterior 

 margin. The large globular papillae on these are from four to six in number. A variety 

 procured by the ' Knight Errant ' at Station 2 (1832) is pale, with few and small tubercles 

 on the posterior border of the scales. 



Feet. — The first foot has two dorsal bristles, one curved and less pointed, the other 

 straighter and more acute. The spinous rows are more distinct than in the typical foot. 

 The tip in both is mioute. 



The second foot has a dense tuft of dorsal bristles, generally more curved and with 

 more distinct spinous rows than in the typical foot, and the bare portion at the tip is 

 proportionally broader and better marked. The slender ventral bristles have rows of 

 long spines and simple tips, those at the ventral edge of the series approaching the 

 pinnate type seen in other forms. They do not project beyond the dorsal bristles. 



The third foot has the dorsal bristles less curved and the tips more acute. In the 

 ventral division the bristles have increased in strength, and, while the upper and lower 

 series have simple tips, the rest have the secondary spur. The tip of the smooth ventral 

 cirrus is long and filiform. 



In the fourth foot the ventral bristles have become more prominent by the increase 

 of the fleshy part of the foot, and some simple tips still occur superiorly, and a more 

 numerous series inferiorly. The spinous rows are long. The dorsal bristles are 

 elongating, the long outer ones having acute tips, the inner broader smooth tips. 



In the typical foot the dorsal division has long and very slightly curved bristles with 

 gently tapered acute tips throughout, the sharpest tips as usual being external (on a slide 

 next the ventral). They are thus easily distinguished from those of Harmothoe imbricata, 

 and also by the much closer spinous rows. Bristles of the same length are decidedly 

 more slender than in H. imbricata. One of the longer forms is represented in Plate 

 XXXVIII, fig. 2. The tip tapers to a smooth, blunt point, and immediately below the 

 latter very fine and close spinous rows occur. A glance at the latter in rapidly examining 

 specimens is one of the most satisfactory points in discrimination. The ventral division 

 bears superiorly a series (Plate XXXVIII, fig. 1) with long spinous extremities, more 

 slender and with longer spinous rows than in H. imbricata. In a few the smooth tips 

 have no secondary process. The next series has a small secondary process, and the 

 spinous border gradually diminishes in length. The bifid tip differs from that of 

 H. imbricata, especially in regard to the minute size of the secondary process. Inferiorly 

 the tips are again simple. Posteriorly the structure of the dorsal bristles remains 

 nearly the same, but the ventral become attenuate, the bifid tip being visible, but the 

 secondary process is minute. The dorsal cirri have a dark bar above and below the 



