NEREIS SCHMABJLEL 293 



segment and a considerable number of the anterior segments are flecked with pale madder- 

 brown touches or specks irregularly disposed, and, after they begin to decrease, whitish 

 touches occur on the segment- junctions in the line of the blood-vessel, and posteriorly a 

 double yellowish-white streak occupies the mid-dorsal line of each segment. About the 

 tenth bristled segment a differentiated region, indicated by two or three brownish dots, 

 occurs near the base of each foot, and as the body becomes paler the region is recognized 

 by a pale, transversely elongated area on each side at the base of the foot, often with a 

 minute black speck at its inner side. These lateral white patches continue almost to the 

 tip of the tail. De St. Joseph gives the body a brick-red colour in life. 



The 'proboscis in extrusion has a pair of maxillas with twelve to thirteen denticulations, 

 the apex being slightly twisted. Dorsally the maxillary segment has a row (II) of para- 

 gnathi at the base of each maxilla, and in a corresponding position ventrally are a crescent 

 and a spur of longer paragnathi (IV) with a group of smaller ones at the posterior angle 

 betweeu crescent and spur. Dorsally in front of the palpi (basal division) is on each side 

 a group of small paragnathi (VI) in two rows ; whilst ventrally a long row (VII and VIII) 

 of paragnathi occurs in lozenges ; as a rule, a large one is in front in the angle of the 

 lozenge, and a row of smaller behind — somewhat similar to the condition in Nereis 

 pelagica, but with fewer small paragnathi. 



The intestine contains debris of TJlva, diatoms, and Grammatophora (De St. Joseph). 



The first foot (Plate LXXII, fig. 2) is short, with but a brief space between the 

 body and the dorsal cirrus, which is comparatively short and stout, its tip scarcely reaching 

 that of the dorsal lobe. The latter forms a massive cone blunt at the tip. The setigerous 

 lobe beneath is obscured by a conical lobe behind it, so that in lateral view only the tips 

 of the bristles are observed. The ventral lobe is large and tongue-shaped, the ventral 

 cirrus short and rather stout (in spirit). The bristles of this part all have tapering tips 

 with finely serrated edges. The third foot shows two setigerous processes as in allied 

 forms. 



On glancing along the feet anteriorly one feature is conspicuous, viz., the rounded, 

 bulbous nature of the lobes ; indeed, this condition gives a distinctive character to the 

 species. Thus at the tenth foot (Plate LXXII, fig. 2 a) the lobes in lateral view resemble 

 bluntly rounded processes. Between the dorsal cirrus and the body is a prominent 

 rounded elevation, and the cirrus is subulate, whilst its tip does not reach the outer edge 

 of the lobe. The superior setigerous lobe beneath forms a low convex process, with a 

 dense fan of bristles, the shafts of which are deeply tinted. All have tapering serrated 

 tips (Plate LXXXI, fig. 2). The lobe beneath is a rounded boss, which does not project 

 so far outward as the dorsal. The inferior setigerous process is a blunt cone, with its 

 long bristles in two divisions— an upper and lower, and each with two kinds of bristles 

 as in the typical Nereids. The upper has those with long tapering tips superiorly, then 

 a series beneath with shorter tips (Plate LXXXI, Hg. 2 a). The inferior has similar 

 bristles at the upper edge, but those toward the ventral border have longer tips than the 

 corresponding series in the upper group (Plate LXXXI, fig. 2 b). The ventral lobe 

 recedes inward as a massive rounded boss, and the small ventral cirrus springs from an 

 elevation of its own. 



The specimen consisted of an anterior fragment, so that the structure of the feet 



