NO. 1 HARTMAN : POLYCHAETOUS ANNELIDS 47 



fig. 110). The first 3 sets of dorsal cirri are elongate, the first group 

 the longest. From the fourth segment the dorsal cirri diminish in 

 length but become thicker basally (pi. 8, figs. 106, 105). 



Elytra are small, rounded, leaving a broad dorsal area exposed. They 

 do not overlap those of succeeding pairs. They are inserted in pairs 

 throughout. 



Neuropodial setae, including those in anterior segments, have a sub- 

 terminal tooth that is closely appressed to the main fang (pi. 8, figs. 

 107 to 109) and notably longer than that shown by Ehlers (1901, pi. 

 3, fig. 17). The dorsal cirri, from about the thirtieth segment, are 

 broad, their basal parts filled with gonadial products. Some of the 

 specimens include a tangle of long, tentacular filaments, perhaps of a 

 terebellid, and were perhaps commensal. 



Distribution. — Chile; Ecuador; western Mexico; Galapagos. Inter- 

 tidal to 20 fms. 



Lepidametria gigas (Johnson) 



Plate 8, Figs. 99-104 



Polynoe gigas Johnson, 1897, pp. 172-175, pi. 7, figs. 33, 42, pi. 8, figs. 



48, 49. 

 Lepidasthenia gigas Moore, 1909, pp. 241-242; Treadwell, 1914, p. 



183. 

 Lepidametria gigas Seidler, 1924, pp. 145-146; Monro, 1936, pp. 92-93, 



fig. 8. 

 Collection. — 148-34. One specimen. 



Length about 30 mm, number of segments 65. Elytra completely 

 cover the dorsum and are present in pairs throughout. They are sub- 

 circular, smooth, with entire margin, and have a greenish gray mot- 

 tled pattern. 



Neuropodia are stout, distally acuminate (pi. 8, figs. 103, 104). 

 Dorsalmost neuropodial setae are notably heavier and darker than those 

 more ventrally. A few of the superiormost are distally entire (pi. 8, 

 fig. 99) but most of them have a subterminal tooth. Median and in- 

 ferior setae are bifid, the secondary tooth small as compared with the 

 main fang (pi. 8, fig. 100). Anteriormost segments have a few (the 

 fourth parapodium with 2) weakly serrated, pointed notopodial setae 

 (pi. 8, fig. 102), and bifid neuropodial setae (pi. 8, fig. 101). 



Distribution. — Southern California; South Georgia (Monro) ; Gala- 

 pagos. Intertidal to 25 fms. 



