236 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 7 



94). The color notations by Schmarda were made, presumably, on the 

 living individual, hence cannot be used for comparison. In so far as I am 

 aware, Nephthys polyphara has not been reexamined or recorded since 

 first described. 



Holotype.— AHF no. 30. 



Distribution. — Peru. In 10-30 fms. 



Nephthys macroura Schmarda, peruana, new subspecies 

 Plate 39, Figs. 89-90 ; Plate 40, Figs. 96-97 



Nephthys macroura Schmarda, 1861, p. 91, figs. B, K, b. 

 Nephthys macrura Gravier, 1911, pp. 98-99; Fauvel, 1916, pp. 436-438, 

 pi. 8, figs. 1-3. 



Collections. — 823-38 (Holotype), 833-38. 2 specimens. 



Two anterior fragments consist of 39 and 25 segments and are 21 

 and 12 mm long, respectively. They are pale except for a dusky elongate, 

 triangular patch on the prostomium covering most of its dorsum, and 

 pale yellow setae. The prostomial lobe is trapezoidal, widest anteriorly. 



Recurved cirri are involute, the first present from the third setigerous 

 segment, small, about as large as its dorsal cirrus, which is proximal at its 

 base. At the fourth segment they are much larger, and by the tenth seg- 

 ment come to occupy most of the interramal space. 



The postsetal lamellae are conspicuous, as in the type species, from 

 about the sixth segment, but reach their maximal development posterior 

 to the widest part of the body. The acicular lobes of both notopodia and 

 neuropodia are elongate beyond the point of emergence of the acicula. In 

 the notopodium the lobe is ventral to the aciculum ; in the neuropodium it 

 is dorsal (pi. 39, fig. 89). These lobes are present in at least the first 39 

 segments, but after the thirty-fifth they diminish in size (pi. 39, fig. 90). 



Acicula are pale. Setae are yellow, numerous, long, silky, flowing. 

 They include preacicular barred (pi. 40, fig. 97) and finer, though 

 longer, postacicular spinose setae. In the latter the spiny area is sparse and 

 narrow (pi. 40, fig. 96). No lyre setae have been observed. 



A^. macroura peruana differs from the type species most conspicuously 

 in that the acicular lobe is produced distally in a slender, digitate process 

 that extends far beyond the tip of the aciculum (pi. 39, fig. 89). 



Holotype. — AHF no. 31. 



Distribution. — Peru. In 10-40 fms. 



