NO. 1 HARTMAN : GONIADIDAE, GLYCERIDAE, NEPHTYIDAE 123 



The proboscis (everted in some individuals) is clavate in shape. Its 

 entire surface is closely strewn with minute, low papillae that can be 

 identified as blunt cones under high magnification. Seen from the top 

 they resemble tiny buttons. The distal end of the proboscis ends in 22 

 bifid papillae (fig. 1). The subterminal rows also number 22, each row 

 with about 9 at the sides and decreasing to 6 or 7 middorsally and mid- 

 ventrally; there are 2 additional reduced ones medially, but there is no 

 one distinctly middorsal. 



All parapodia are biramous but the first neuropodium is reduced 

 and has a setal fascicle that is smaller than those farther back. Noto- 

 podial and ventral cirri of the first segment are larger than those farther 

 back and subequal to each other. Interramal cirri are first present from 

 segment 5 (or 6) or not until segment 7 or 8 (see under Collections, 

 above) and continued back nearly to the end of the body; the last 6 to 

 10 segments may lack these cirri. They are involute and inscribe a 

 complete spiral where best developed. Except in the first few segments, 

 they greatly exceed in length and size their respective notopodial cirri. 



Notopodia consist of an entire postsetal, foliaceous lamella directly 

 behind the postsetal fascicle, not above it, as in A. erectans (see below). 

 The notoacicular lobe is conical and the yellow aciculum projects from 

 its distal end as a recurved hook. The notopodial cirrus is slender and 

 tapering. Neuropodia have a characteristic superior, digitate lobe that 

 is erect and long; it projects distally for a length about equal to that of 

 the neuropodium (fig. 3). It is first present at about segment 14 and 

 continued far back, nearly to the end but absent from about the last 10 

 segments where the body tapers rapidly. Neuropodial postsetal lamellae 

 are broad and foliaceous, but not as long as their corresponding noto- 

 podial lamellae. 



Setae are of 3 kinds including preacicular barred, postacicular lan- 

 ceolate and furcate spines. In anterior segments the barred setae are 

 heavier and more conspicuous than their accompanying postacicular setae 

 but after the origin of the furcate spines, at about the sixth segment, the 

 barred setae decrease in relative size and come to be more slender than 

 postacicular setae. Lanceolate setae are of 2 intergrading kinds. Those in 

 upper and lower parts of the fascicles are nearly smooth all around. 

 Those in the middle, where accompanied by furcate setae, are profusely 

 and irregularly covered with fine spinelets on the cutting edge (fig. 5) 

 and nearly smooth on the opposite side. The shaft is cylindrical and 

 smooth; the distal end is slender and pointed. These setae number 6 

 to 8 in a fascicle and they alternate with as many furcate setae; their 

 relations and comparative sizes suggest that the latter function to clean 

 the spinous parts of the lanceolate setae. 



