NO. 13 POLYCHAETOUS ANNELIDS HARTMAN IQ 



The anal tube, without its terminal cirri, is about as long as the last 

 4 setigerous segments. It ends distally in 6 subequal cirri disposed in a 

 crescent on the dorsal and lateral portions, and 2 ventral cirri, includ- 

 ing a longer left and a shorter right, but both are larger than the 

 lateral cirri. 



The single individual is translucent, and believed to be immature. 

 It differs from known species of Armandia in ( 1 ) its greater number 

 of segments (36 setigerous), (2) the presence of lateral eye spots 

 posterior to the seventeenth segment, and ( 3 ) the small number of 

 anal cirri, a total of 8. 



SABELLARIIDAE 



IDANTHYRSUS PENNATUS (Peters) 



Pallasia pcnnata Fauvel, 1917, p. 262. 

 Idanthyrsus pennatus Monro, 1933b, p. 1065. 



Collection. — Station Nos. 9-38, 15-38; 1 specimen and dried tubes. 



Length to 55 mm. (Clipperton Island). The inside diameter of the 

 tubes is approximately 5 mm. ; the outer surface is covered with coarse 

 yellow sand particles and shell fragments. 



Distribution. — -Cosmopolitan; littoral zones. 



TEREBELLIDAE 



NICOLEA GALAPAGENSIS Chamberlin 



Nicolea galapagcnsis Chamberlin, 1910, p. 427. 

 Nicotea cctrata galapagcnsis Augener, 1033, p. 65. 



Collection. — Station No. 19-38; 1 specimen. 



Length without tentacles about 50 mm. ; color drab greenish gray 

 in alcohol. There are 2 pairs of branchiae, the first somewhat larger 

 than the second; and 19 ventral thoracic scutes, the last two not well 

 marked. 



Distribution. — Galapagos Islands; Australia (Augener). 



POLYMNIA NEBULOSA (Montagu) 



Polymnia nebulosa Fauvel, 1927, p. 257; Monro, 1933b, p. 1072; Okuda, 1937, 

 P- 59- 



Collection. — Station No. 30-38; 3 specimens. 



The longest to 50 mm. without the tentacles, consists of 125 setiger- 

 ous segments of which 17 are thoracic. 



Distribution. — Cosmopolitan, in warm seas. 



