210 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 7 



chiae. In the latter, however, the long spine of the bifurcated seta is said 

 to have a subterminal tooth (Ehlers, 1901, pi. 1, fig. 8). The ringed setae 

 have broad, bifurcated ends and a slender stalk (pi. 32, fig. 26). 



Distribution. — Panama, Pacific side; Gorgona Island, Colombia. 

 Shore. 



Euphrosyne aurantiaca Johnson 

 Plate 32, Figs. 27-29 



Euphrosyne aurantiaca Johnson, 1897, pp. 157-158, pi. 5, figs. 1-4 (not 



Treadwell, 1914, p. 178; see below). 

 Euphrosyne kyllosetosa Essenberg, 1917, pp. 68-69, pi, 5, figs. 24-31. 



Collections.— 439-36, 874-38, 906-38. 4 specimens. 



The caruncle consists of a larger ventral lobe upon which the dorsal 

 lobe is imposed and to which it is completely fused. The branchiae are 

 more or less regularly dichotomously branched. The ventral bifurcated 

 setae (pi. 32, fig. 29) are similar to, but longer than, the dorsal setae (pi. 

 32, fig. 27). All of the simple bifurcated setae are finely punctate below 

 the fork. Some of the longer ventral setae have a few elevations, in a sin- 

 gle series, near the base of the longer spur (pi. 32, fig. 29). The ringed 

 dorsal setae (pi. 32, fig. 28) are broader than the simple setae, but almost 

 transparent, fewer, and less easily seen. 



In a single specimen from Portuguese Bend, California (906-38), the 

 branchiae are unusually conspicuous, but the dorsal setae are fewer, per- 

 haps lost. The setae and branchiae are typical of the species. 



The cotype of E. kyllosetosa Essenberg (1917, p. 68) in the collec- 

 tions of the University of California has been compared with paratypes 

 of E. aurantiaca Johnson. No significant differences have been observed. 

 Their descriptions, also, agree reasonably well. E. aurantiaca Treadwell 

 (1914, p. 178) was made the type of E. calypta Essenberg (1917, p. 63). 



Distribution. — California; Anacapa Island, off California; Pifias 

 Bay, Panama. Shore, to 45 fms. 



Euphrosyne bicirrata Moore 

 Plate 32, Figs. 21-23 



Euphrosyne bicirrata Moore, 1905, pp. 532-534, pi. 34, figs. 8-12; 1908, 

 p, 339; 1911, p. 234; Berkeley, 1923, p. 211. 

 Length 6 mm ; width without, 1 ,4 mm, with setae, 2 mm ; number of 

 segments 23. The caruncle is a simple ridge with dorsal and ventral 

 lobes ; the dorsal lobe extends posteriorly to the anterior third of the fifth 

 segment, the ventral lobe to the posterior third of the fourth segment. It 



