NO. 3 HARTMAN : POLYCHAETOUS ANNELIDS 353 



side (pi. 38, fig. 94). Inner paleae are pale, completely concealed from 

 view by the middle paleae ; they are thin, frayed out, at their distal ends 

 (pi. 38, fig. 95). The opercular crown is externally bounded by 39 to 

 40 short, broad papillae, separated middorsally by a short space. 



The palpi are to be seen only by lifting the oral tentacles to one side ; 

 they are short, cirrate. The parathoracic segments are provided, on either 

 side, with flattened paleae, numbering about 6, 6 and 7, proceeding from 

 anterior to posterior regions ; the first set is smaller than those following. 



Tube masses are constructed of sand particles, shell, or other flattened 

 fragments. The galleries are about 30 to 50 mm long, but irregular 

 because of massing. The great extent of tube masses in intertidal zones 

 may be seen by comparison of the photographs in plate 42. 



P. ottenuata differs from other species of the genus in its slender, 

 prolonged, opercular stalk and crown, in the obliquely disposed opercular 

 paleae, and in the distal appendage of the outer paleae. 



Sabellaria virgini Ehlers (1901, p. 199, pi. 23, figs. 5, 6) may belong 

 here. There are 2 statements in the text that appear to refer to these 

 specimens: (1901, p. 199) "die Buccalstrecke . . . ausgedehnt dreimal 

 langer als breit," and on the next page, "diese Krone tragende Buccal- 

 streck ist . . . bald langsgestreckt." The long, attenuate shape of the 

 opercular stalk is characteristic of P. attenuata. Sabellaria (Phragmato- 

 poma) virgini Monro ( 1933, pp. 1062-1063, fig. 1 1 ) from Perlas Islands, 

 Panama, probably also belongs here, since the outer opercular palea is 

 said to have a pectinate plume and is shown with a long-toothed brush 

 at the end. The distal end of the shaft, however, is shown merely rounded, 

 without teeth, and no mention is made of the unique, high cone, formed 

 by the paleae of the middle series. 



Holotype. — AHF no. 60. 



Type locality. — La Libertad, Ecuador (coll. 15-33). 



Distribution. — Ecuador; Colombia; ?Pacific side of Panama. Inter- 

 tidal. 



Phragmatopoma peruensis, new species 

 Plate 37, Figs. 84, 85 ; Plate 39, Fig. 99 ; Plate 41, Fig. 104 



Materials examined. — At the U.S. National Museum, collected by 

 Dr. W. L. Schmitt: Salaverry, Peru, shore (tube masses). 



A fine, black, cindery mass, consisting of many tubes closely cemented 

 together (pi. 41, fig. 104) with minute apertures over its surface, was 

 found to contain minute specimens of a Phragmatopoma, believed ne\v. 

 The tiny, slender individuals are pale, with light brown crown. Total 

 length (mature) is only 8 to 9.5 mm with caudal tail, measuring 1.5 mm 

 long. Greatest width, in the thoracic region, is 0.75 mm (based on speci- 



