NO. 1 HARTMAN : POLYCHAETOUS ANNELIDS 43 



The elytra are firmly attached and sparsely fringed on the outer, 

 postlateral edge. The surface is uniformly covered with numerous trim, 

 small flattened tubercles, approximately of two sizes (pi. 5, fig. 67), the 

 smaller colorless, the larger yellow. Only the second and third pairs of 

 elytra are slightly excavate at their anterior margins (pi. 5, fig. 69), 

 others are subrectangular or oval in shape (pi. 5, fig. 68). The surface 

 is pale, contrasting in color with the darker, amber-colored tubercles 

 which, in color, resemble the neuropodial setae. The outer margins of 

 the elytra extend laterally beyond the neuroacicular lobes, but they 

 leave uncovered most of the free ends of the ventral setae and the distal 

 halves of the dorsal cirri. 



In median segments the neuropodial setae are almost or quite simple 

 (pi. 5, fig. 66) but a few in each fascicle, particularly the superior- 

 most, usually have vestiges of a subterminal tooth (pi. 5, fig. 65). The 

 tips are stouter than Monro found them in specimens from Panama. 

 All of the neuropodial setae in the second and third segments, save a 

 few smaller pointed inferiormost (pi. 5, fig. 64), are distinctly bifid 

 (pi. 5, fig. 63) differing therein from the specimens originally de- 

 scribed, in which only the second segment has bifid setae, and the sec- 

 ondaiy tooth is less conspicuous. 



The first parapodium has about 17 neuropodial setae, the second 

 about 18, and a median parapodium about 20 to 25, the number in- 

 creasing gradually from anterior to median regions. In Monro's speci- 

 mens there were only about 6 neuropodial setae in median segments. 

 On the whole, the setae are stouter in the specimens from Peru than 

 indicated in those from Panama. 



These collections are referred, with some doubt, to L. crosslandi 

 Monro, for the reasons indicated above. The differences indicated above 

 may or may not fall within the range of variation observable in some 

 species of the Polynoidae. 



Distribution. — Panama; Peru. Intertidal to 7 fms. 



Lepidonotus hupferi Augener 

 Plate 6, Figs. 78-82 



Lepidonotus hupferi Augener, 1918, pp. 133-136, pi. 2, figs. 7-11; 

 Seidler, 1924, pp. 69-70. 



Collections.— 125-33, 210-34, 448-35, 683-37. 13 specimens. 



Length 10 to 17 mm. Elytra completely cover the body. General 

 color pale, but under low magnification the elytra are seen to have an 



