300 LAGISCA FLOCCOSA. 



a dark bar at the base, then a pale region with another bar below the filiform tip. If 

 colour is to be relied on, the pale part would be homologous with the slightly swollen 

 region in other forms. The tentacular cirri are similar to the median tentacle. All these 

 cirri have the slightly enlarged part pale, with a brown band on each side, and the 

 column below is brownish. The palpi show minute papillse-like serrations along the 

 sides under a high power, probably partly due to the rigid contraction. They thus 

 differ materially from those of Harmothoe imbricata with the minute clavate cilia. 



Th e Body is narrower than in Harmothoe irnbricata, and the line of bristles on each 

 side is straight and trim ; moreover, it has a general firmness which is characteristic. 

 The anterior end diminishes from the eighth or ninth bristled segment towards the head, 

 while posteriorly the diminution, which is gradual, begins shortly behind the middle, and 



Fig. 23. 



Papillae and teeth of the proboscis of Lagisca floccosa. 



the body terminates in a process bearing the two caudal cirri beneath the vent. The 

 number of bristled segments is about forty-two. Dorsally the latter are marked from 

 the head backward by a median series of brownish touches, which posteriorly show a 

 somewhat symmetrical arrangement in the centre of each segment, consisting of an 

 anterior, narrow, curved bar, a fan-shaped region divided by a median streak and a short 

 transverse bar posteriorly. A prominent dark patch also occurs on the papilla (homo- 

 logue of scale-papilla) and a little pigment at the base of the dorsal bristles. The ventral 

 surface is pale and iridescent ; the nephridial papilla is smaller than in Harmothoe irnbricata, 

 and passes into the fissure between the feet. A considerable portion of the tail is devoid 

 of scales, and it is this region which has the pigment on the dorsum best developed. 

 The segmental (nephridial) papilla commences on the sixth foot, and extends to the 

 posterior feet as a very minute process. 



Broboscis. — The extruded proboscis (Fig. 23) has the usual teeth, the lower pair biting 

 to the right of the upper, nine flattened conical papillas dorsally, and nine ventrally at the 

 margin. The skin-folds at the mouth are marked by brownish pigment. The pre-gastric 

 casca are short and small. The ventral alone is conspicuous in the preparations, for the 

 second proceeds little beyond the stomach, and the third is nearly transverse. 



Scales (Plate XXXII, fig. 5) — fifteen pairs. First pair rounded, the others reni- 

 form or ovate-reniform, the last pair being ovoid, of a brownish-red colour, or sometimes 

 slightly purplish marbled with grey. They generally show a pale area over the scar for 

 the pedicle, and from the depth of the colour this is best marked anteriorly, the pigment 

 in the posterior scales being broken up into a series of touches and granules. The 



