10 ALLAN HANCOCK ATLANTIC EXPEDITION REPORT 



neuropodia have many small papillae. Neurosetae are distally bidentate 

 and have 3 or 4 rows of spinelets at the thickened region. Augener's origi- 

 nal preliminary description (1922, p. 40) was later enhanced (1933, p. 

 194). The type specimen was said to be only 9 mm long, but no mention 

 was made of its stage of development. 



Distribution. — West Indies; intertidal. 



PThormora taeniata (Ehlers) 



Polynoe taeniata Ehlers, 1887, pp. 51-52, pi. 10, figs. 1-8. 

 Lepidonotus (Thormora) taeniatus Seidler, 1924, pp. 92-94. 



Collection.— A 15-39 (2). 



Two mature individuals, consist of 26 setigers, measure to 17 mm long 

 by 4.5 mm wide, without parapodia ; the general shape is rectilinear. The 

 ovigerous region is dark green, present from the tenth setiger to near the 

 posterior end. The dorsum is rust colored, save the elytra of the first pair 

 and anterior half of the second pair, which are pale. The prostomium is 

 distinctly lepidonotoid, the frontal processes continuous with the pro- 

 stomial lobe, not sharply marked oi^ as first shown (Ehlers, 1887, pi. 10, 

 fig. 1 ) . The anterior eyes, however, are near the anteroectal margins of 

 the lobe as originally shown, and the posterior pair are far back, normally 

 covered by the straight peristomial membrane. Prostomial antennae and 

 palpi have the proportions first shown. 



Elytra number 12 pairs, have entire margin, and are uniformly pale 

 russet save for a small, pale spot over the elytrophoral scar. They overlap 

 slightly in the middorsal line, but leave exposed most of the setal and 

 neuropodial length. They are elongate oval, in anterior-posterior direc- 

 tion. The surface of most is smooth save for micropapillae, but the first 

 few pairs are characterized by large, tall, yellow, blunt spines, especially 

 in the area over the elytrophoral scar and at the posterior margin. These 

 tall, coarse spines are most abundant on the first pair of elyti^a, where 

 they are distributed over the entire surface, but well separated from one 

 another; by the fourth pair they are not only smaller and less conspicuous, 

 but limited to the area over the scar and at the posterior margin. Farther 

 back the surface is comparatively smooth, but has micropapillae over all. 



Notosetae consist of two kinds, as characteristic of Thormora; the 

 spinous setae are coarse, distally bluntly pointed, disposed in a whorl 

 around the smooth setae; the latter are much longer, slenderer, include 

 longer and shorter ones, just as first shown. Neurosetae are coarse, yellow, 

 distally entire, with 5 or 6 rows of transverse spinelets ; the anteriormost 

 have usually a large yellow tooth at the distal end of the spinous row, as 

 shown for T. taeniata (Hoagland), but those in the middle and ventral 



