140 THE ANNELIDA POLYCHAETA. 



first noted above, yellow, but with the same markings, the black segmental 

 organs showing very conspicuously. The larger specimen is only 25 mm. long, 

 but its width is proportionately large, the maximum being 3 mm., or to the 

 ends of the parapodia 7.7 nun. 



The two individuals from Sta. 4669 are larger and decidedly more robust. 

 The larger of the two is 45 mm. long; the maximum width, exclusive of the 

 parapodia, is 3.5 mm. and inclusive of the parapodia, 7.8 mm., and to tips of the 

 setae 10.75 mm. The number of somites is fifty-eight or sixty, the number 

 given by Greeff (1876, p. 69) as typical of celox. 



The two specimens from 4682 are large, like those from Sta. 4669, but are 

 even more robust. One of them, exclusive of the protruded proboscis, is 45 

 mm. long, with a width, inclusive of parapodia, of 9 mm. and, inclusive of setae, 

 of 11.5 mm., width exclusive of parapodia 4.4 mm. The extruded proboscis, 

 the two long processes, 5.5 mm. long and 4.2 mm. thick at the widest part. 

 The body is yellow, of a weakly brownish cast, the parapodia and cirri lighter; 

 the usual markings present. 



Localities. North of Marquesas Islands: Sta. 3790 (lat. 6° 25' S., long. 

 138° 59' W.). Surface. Surface temp. 80° F. 13 September, 1899. Two frag- 

 ments. 



Between Galapagos Islands and Peru: Sta. 4652 (lat. 5° 45' S., long. 82° 40' 

 W.). Surface. 11 November, 1904. Eighteen specimens. 



Off Peru: Sta. 4655 (lat. 5° 57' 30" S., long. 81° 50' W.). Surface. 12 Novem- 

 ber, 1904. Two specimens. 



Between Galapagos Islands and Peru: Sta. 4650 (lat. 5° 21' S., long. 84° 

 39' W.). Surface temp. 71° F. 10 November, 1904. A small and apparently 

 young specimen taken at the svirface. 



Off Peru: Sta. 4657 (lat. 7° 12' 30" S., long. 84° 09' W.). Surface. 13 

 November, 1904. Eleven specimens. 



Off Peru: Sta. 4663 (lat. 11° 20' S., long. 88° 55' W.). 16 November, 1904. 

 One specimen taken at surface. 



Off Peru: Sta. 4665 (lat. 11° 45' S., long. 86° 05' W.). 17 November, 1904. 

 One incomplete specimen, surface. 



Off Peru: Sta. 4669 (lat. 12° 13' S., long. 80° 24' W.). 19 November, 1904. 

 Two specimens taken at surface. 



Between Peru and Easter Island: Sta. 4682 (lat. 19° 07' 30" S., long. 90° 

 10' W.). 8 December, 1904. Two specimens at surface. 



Galapagos, near Hood Island: Sta. 4715. 2 January, 1905. One broken 

 specimen, of the dark-bodied type, with sharply contrasting parapodia. 



