NO. 3 HARTMAN : POLYCHAETOUS ANNELIDS 345 



The outer opercular paleae number 25 to 30 on a side, the middle and 

 inner ones number each about 15 on a side. The outer paleae are thin, 

 translucent, the distal edge delicatelj^ serrulate when uninjured, and the 

 middle, longest portion has lateral barbs (pi. 34, fig. 72). Middle (pi. 

 34, figs. 69, 66) and inner (pi. 34, figs. 68, 67) paleae resemble one 

 another in general shape; each terminates distally in a point; they are 

 closely, transversely striated, but translucent. In some specimens (from 

 La Jolla, California) the middle paleae have a much longer point (pi. 

 34, fig. 69) than in others (sta. 1159-40) (pi. 34, fig. 66), but in other 

 respects the individuals agree. 



Tube masses are constructed of fine sand and are easily broken apart. 

 They are attached to the under sides of rocks and other hard surfaces, 

 sometimes occurring on the same surfaces with Phragmatopoma cali- 

 fornica (below), but easily distinguished from the latter by much smaller 

 size and more delicate pattern. 



S. gracilis dififers from other species in having middle and inner 

 opercular paleae very similar to one another; also, it is notably smaller 

 than tj^pical for others of the genus. 



Holotype. — AHF no. 58. 



Type locality. — Pt. FeiTnin, California, shore (coll. 901-38). 



Distribution. — Southern California ; intertidal to 25 fms. 



Sabellaria floridensis, new species 

 Plate 31, Figs. 37-41 



Collection. — Lemon Bay, Englewood, Florida (2). 



A collection of 2 individuals, from Grove City Key, on Lemon Bay, 

 depart so widely from other species of the genus that they are believed 

 to represent an undescribed form. Length of the body is 12 mm without, 

 15.5 mm with, caudal tail. The opercular base is marked with closely 

 spaced patches, oval in a transverse direction. The operculum is circular 

 in shape, fixed out of the tube ; it consists of about 22 pairs of paleae in 

 the outer row; the middle row contains about 6 long and 6 short paleae 

 on each side, and the inner row has about 1 1 pairs of them. There are 14 

 pairs of elongate papillae around the outer base of the crown. Oral ten- 

 tacles are numerous, more or less tightly coiled, completely fill the area 

 about the buccal cavity and conceal the tapering palpi; the latter are 

 longer and thicker than the oral tentacles but not conspicuous. 



The outer opercular paleae are prolonged in their distal portions; 

 they have 2 larger serrations on a side and a minute tooth at the outer 

 base; the middle portion is drawn out as a great serrated membrane (pi. 



