208 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 7 



Family Euphrosynidac 



This small family is known to be present in the eastern Pacific 

 through only one genus, Euphrosyne Lamarck. Ten species have hereto- 

 fore been reported from the temperate and tropical Pacific. They are : 



1. Euphrosyne arctia Johnson (1897, p. 159) from California, north 

 to Alaska. 



2. Euphrosyne aurantiaca Johnson (1897, p. 157) from California. 



3. Euphrosyne bicirrata Moore (1905, p. 532) from the Gulf of 

 Georgia, south to California. 



4. Euphrosyne calypta Essenberg (1917, p. 63) from California. 



5. Euphrosyne dumosa Moore (1911, p. 235) from Catalina Island, 

 California. 



6. Euphrosyne heterobranchia Johnson (1901, p. 402) from Wash- 

 ington. 



7. Euphrosyne hortensis Moore (1905, p. 534) from Alaska, south to 

 California. 



8. Euphrosyne kyllosetosa Essenberg (1917, p. 68) from California. 



9. Euphrosyne li7nbata Moore (1911, p. 237) from San Nicolas 

 Island, California. 



10. Euphrosyne panamica Chamberlin (1919, p. 33) from the Pacific 

 side of Panama. 



Nine (nos. 1-9) of these have been ascribed to California, one (no. 

 10) from Panama, and none from the other areas covered in this report. 

 Among the California species, some may be found to be identical vi^ith 

 others, vi^hen they vi^ill have become more completely known. Thus, E. 

 kyllosetosa and E. aurantiaca bear remarkable similarities to each other 

 (see also p. 210) . Furthermore, E. hortensis, E. dumosa, and E. aurantiaca 

 are not easily separable, except through characters that may prove to be 

 variable. 



Key TO Species 



1. Caruncle conspicuously trilobed, with a median and a pair of 

 long, lateral lobes (pi. 32, fig. 25) . . . E. panamica, p. 209 



1. Caruncle without conspicuous long, lateral lobes 2 



2. Branchial filaments bilobed E. bicirrata, p. 210 



2. Branchial filaments ramosely divided (pi. 32, fig. 24) . . . 3 



