NO, 3 HARTMAN : POLYCHAETOUS ANNELIDS 235 



low, soft conical papillae, adnate at their bases, but the part immediately 

 bounding the mouth is smooth. 



Recurved cirri are involute, present from the third setigerous segment 

 to the end of the pieces. Where best developed, they circumscribe almost 

 2 complete whorls (pi, 40, fig. 93), 



Parapodia are conspicuously lobed throughout. They have large, foli- 

 aceous lobes, posterior to the longer setae, on the sides proximal to the in- 

 terramal space. Also, there are shorter, broad lamellae on the dorsal face 

 of the notopodium and ventral to the foliaceous neuropodial lobe. In an- 

 terior segments (about the first 20) these lobes are entire. More poste- 

 riorly they are serrated (pi, 40, figs. 91, 94). The neuropodial postsetal 

 lamellae are simple, entire in the first 25 to 30 parapodia (pi. 40, fig. 

 93) ; then for about 10 to 12 segments they are distally serrated, consist- 

 ing of 2 or 3 lobes, the ventralmost broadest but shortest. From about the 

 fortieth to forty-fifth segment the postsetal lamellae consist of 4 lobes, 

 and this arrangement continues to the end. 



The notopodial postsetal lobes are similarly divided; the first serra- 

 tions occur at about the twenty-second segment and are increasingly deep- 

 er and more regular until 4 lobes are present (pi. 40, fig. 94) from about 

 the fortieth segment. Ventral cirri are clavate and terminate in a slender 

 point. 



Setae are of 2 kinds : preacicular barred, and heavier postacicular spi- 

 nose setae. These have a pilose base and a slightly serrated distal portion 

 (pi, 40, fig. 92). The tip is smooth, pointed. 



Nephthys lobophora was at first thought to be the same as N. polypha- 

 ra Schmarda ( 1861, p. 89) from Chile. Both have conspicuous parapodial 

 lobes, including serrated postsetal lamellae, and the postacicular setae are 

 pilose basally, with only weak serrations distally. In N. polyphara the re- 

 curved cirri are probably shown in an unnatural position, dorsal to the 

 notopodium instead of in the interramal space. Discounting this seeming 

 difference, there are others which indicate that the two are distinct from 

 each other. N. polyphara has 12 rows of papillae on the proboscis, N. lo- 

 bophora has 22 rows. In N. polyphara the parapodial "obere Ast tragt 

 eine lange fadenformige, stark eingerollte, cirrenartige Kieme [recurved 

 cirrus turned unnaturally upward?]. Unter ihr steht ein kleines rund- 

 Hches Blatt" [the dorsalmost postsetal lamella?]. In N. lobophora the 

 smaller, rounded lobe is dorsal to the recurved cirrus and to the foliose 

 lobe (pi. 41, fig. 102). In N. polyphara the postsetal lamella has "drei 

 zungenformige Lappen." In N. lobophora there are 4 lobes (pi. 40, fig. 



