HARMOTHOE LJUNGMANI. 333 



Read (Plate XXXVIII, fig. 4) elongated from before backward, terminating in two 

 peaks anteriorly, and with eyes similarly placed to those in R. zetlandica, viz. a pair of 

 smaller eyes on the dorsum in front of the nuchal collar, and a larger pair on the sides 

 anteriorly in front of the middle line of the head, and at the base of the peaks. All are 

 visible from the dorsum, though the main vision of the anterior eyes is lateral. The palpi 

 have rows of minute papillae, and are similar to those of R. zetlandica, as also are the 

 tentacles and tentacular cirri — which have clavate cilia. All are comparatively short, and 

 taper gently to the extremity without an evident enlargement below the tip (in spirit). 



Body elongated, rather narrow, slightly tapered in front, more so posteriorly, and 

 with comparatively short bristles, the segments bearing these being from thirty-five to 

 thirty-six. In regard to external structure and coloration it agrees with the foregoing 

 form. 



Scales (Plate XXXII, fig. 14) amount to fifteen pairs, are thin and semi- translucent, 

 have a very few minute cilia along the outer and posterior border, while the papillae, 

 which are generally scattered over the surface, are larger and more numerous than in R. 

 zetlandica. Along the anterior edge somewhat smaller papillae occur in rows. In shape 

 they correspond with those of the latter, the first pair being circular, the rest more or 

 less ovoid and increasing in size to the twelfth or thirteenth. 



Feet. — In the first foot the upper division bears a few short dorsal bristles similar 

 in type, though more curved than the succeeding. 



In the second foot the dorsal bristles are already numerous and of considerable 

 length. The curvature is well marked, especially at the tip, which shows no smooth 

 portion, the spinous rows passing quite to the extremity. The bristles of the inferior 

 division present superiorly almost the typical structure with the somewhat broad short 

 tip, and the long secondary process. The bristles of the middle division have longer tips, 

 very slightly bifid, while in the inferior series the tips are elongated, simple, and with 

 long spinous rows, which in some views are more or less pinnate. 



As we proceed backwards the bristles gradually assume the typical form, the dorsal 

 becoming longer and stronger (Plate XXXVIII, fig. 22) as well as less curved. Moreover 

 the tip is but slightly tapered, and the spinous rows pass to the extremity and are closely 

 arranged, except in a few of the short forms next the body. The ventral division has 

 boldly bifid bristles (Plate XXXVIII, fig. 23) throughout, the entire tip being rather 

 broad and the spinous region short. The inner line of the hook forms a different angle 

 from that in R. spinifera, and leaves a wider gap distally. The secondary process 

 diminishes in length from the superior to the inferior series of bristles, so that in the 

 latter it scarcely reaches to the middle of the peculiarly curved terminal hook. The 

 spinous region of the tips of the inferior bristles is very short. The bristles generally 

 are faintly yellowish, and the dorsal form a favourable site for the development of 

 parasitic growths. 



The dorsal cirri are comparatively short, and taper almost from the base to the 

 slender tip. Sparsely distributed clavate cilia occur on the surface below the latter. 

 The ventral cirri are enlarged at the base, and have also a few clavate cilia. 



When the species was described in 1876 it was thought to differ from the Parmenis 

 ljungmani of Malmgren, on the grounds of the proportional strength and structure of the 



