108 Thirty-second Report on the State Museum. 



Antennae : median lost ; those in pairs delicate, subulate, without basal 

 articles. Upper pair situated just above the lower, their length about equal 

 to the width of the head ; lower pair a little shorter than upper. 



Eyes dark red ; anterior pair large, circular, latero-posterior ; posterior pair 

 a little within the front pair, almost in contact with them ; crescentic, concavity- 

 directed outward and backward. 



Tentacular cirri six pairs, arising from short, cylindrical basal articles, 

 borne on the first three segments, two pairs to each segment ; upper cirri as 

 long as the dorsal cirri, or even a little longer ; lower about one-half as long as 

 the upper. The first four pairs on each side seem to arise from the sides of the 

 head ; this is due to the fact that the first and second segments are not visible 

 from above, except as narrow lateral bands extending forward on the head as 

 far as the anterior eyes ; these segments are well defined below ; in alcoholic 

 specimens they cannot be seen from above, and even in living forms the line 

 of division between the sides of the head and the lateral prolongations of these 

 segments is not easy to demonstrate. 



Dorsal cirri very long, delicate, tapering uniformly, basal articles short, 

 cylindrical (fig. 19). 



Feet biramous ; upper ramus a stout papilla arising just below the base of 

 the dorsal cirrus ; lower ramus stout, elongated, terminating above in a conical 

 process, below which the end of the ramus is bluntly rounded, almost truncate. 



Ventral cirri arise from lower outer margin of the ventral ramus, delicate, 

 conical, about one-sixth as long as the dorsal cirri. 



Setae : dorsal very long, slender, capillary, forming a close-set bundle, aris- 

 ing from the summit of the dorsal ramus ; ventral (fig. 20) of the form usual in 

 this genus, hardly to be distinguished from the ventral setae of Podarke obscura 

 Verrill, except that they are longer, and that the stem has transverse markings, 

 which I have never been able to see in the setae of that species. The difference 

 in length between the setae of the two species is due almost entirely to the 

 elongation of the stem in the setae of P. luteola. 



Body slightly convex above and below, widest in front, tapering very 

 gradually. The feet increase in length from the first pair to the middle a little 

 faster than the body narrows, so that the widest part, including the feet, is in 

 the middle. 



Anal cirri in all respects similar to the dorsal. 



Color : reddish-yellow dorsally ; feet green or yellow above, green later- 

 ally ; ventral surface a shade lighter than the dorsal ; antennae and all cirri 

 white. 



Length, H mm ; width, including feet, 2 mm ; number of segments, 45. 



A single specimen was found on an oyster shell at low water. 



This species is easily distinguished from Podarke obscura Verrill (the only 

 species of this genus previously described from our coast), by the form of the 

 head — lack of basal articles for the antennae, apparent origin of the tentacular 

 cirri of the first two segments, great length, and short basal articles of the 

 dorsal cirri, etc. 



