LEPIDONOTUS NESOPHILUS. 75 



This is the type-locaUty for the species, Kinberg stating that his specimens 

 inhabited "litora insularum prope Panama." 



Lepidonotus NESOPHILUS, sp. nov.^ 

 Plate 4, fig. 1-7; Plate 5, fig. 13. 



The general form of the body is rather slender for this genus, the outline 

 as seen from above being narrowly oblong; the sides straight from near the end 

 of the anterior fourth caudad, more strongly so near the caudal end, where the 

 venter proper is seen to run to an acute point; narrowed also a little cephalad 

 from the level of greatest width, the anterior end convex. Dorsal and ventral 

 surfaces moderately and about equally convex. The total length of type is 27.5 

 mm.; the greatest width, exclusive of the parapodia, is 4.8 mm.; inclusive of 

 parapodia, 7 mm.; and inclusive of the setae, 8.2 mm.; the width across dorsum 

 to the edges of the scales is 6.8 mm. ; and the greatest depth of body is 4.2 mm. 



The color of the elytra is greyish green, paler toward the ectal side; a larger 

 light spot is over the point of attachment and numerous srnall light dots about 

 this. The color of the venter and of the dorsum where exposed along the mid- 

 dorsal line is more dilute and with less suggestion of gi-een. The setae are brown, 

 darker at the tips. 



The prostomimn is convex with the sides behind well rounded; in front it 

 presents the two conspicuous, subcylindi'ical processes forming the lateral ten- 

 tacular ceratophores, each lateral half of the prostomimn inclusive of these cera- 

 tophores being somewhat pyriform, a shallow longitudinal median furrow 

 bisecting it above. The surface is weakly transversely wrinkled. Eyes black. 

 General surface pale in contrast with the ceratophores, which are blackish. 

 (Plate 4, fig. 1). 



Ceratophore of median tentacle thick, subcylindrical, widening distad, 

 half the length of the prostomium proper. The style is only twice as long as 

 the prostomium, strongly tapering from the base distad, with the usual sub- 

 terminal enlargement which is elliptic in outhne, this followed by the slender 

 apical filament which about equals the subterminal enlargement m length; the 

 style is blackish but with a light colored annulus just proximad of the enlarge- 

 ment and the terminal filament again pale. 



Ceratophore of the lateral tentacle four fifths or more the length of the 



' >'T]<ros , island, and (j>l\os, loving. 



