NO. 13 POLYCHAETOUS ANNELIDS HARTMAN II 



hooks, which characterize this genus, have no indication of a suture, 

 but are strictly simple. The segments of the posterior half of the body 

 have characteristic dark color patches on the dorsal side of the para- 

 podia, and over the body segments, in line with the parapodia. 



Distribution. — Japan ; northeast Pacific, from Alaska south to 

 Lower California, Mexico; Australia; Galapagos Islands. 



? NEREIS CALLAONA Grube 



Fig. 2, b 



Nereis callaona Grube, 1856, p. 165 ; Augener, 1918, p. 184. 

 Nereis heterocirrata Treadwell, 1931, p. 1; Hartman,*I938, p. 14. 

 Nereis encapitis Hartman, 1936, p. 468. 



Collection. — Station No. 3-38; 2 specimens. 



Length 24 and 34 mm. ; number of segments 60. Color pale, eyes 

 deep red; acicula are black with paler tips; setae are amber-colored. 

 Posterior parapodia are charcterized by having a broad, convex dorsal 

 lobe (fig. 2, b). The arrangement of paragnaths is as follows : Area I 

 with 2 cones in tandem, the one on the oral side the larger ; area II 

 with a crescent of about 18 cones, ranging from small flat cones near 

 the jaws to tall cones more distally ; area III with oval patch of about 

 25, in 3 or 4 irregular rows, the largest paragnaths on the oral side ; 

 area IV with a crescent including about 25 cones resembling those on 

 area III ; area V with none ; area VI with 4 in a diamond or with 

 6 to 8 disposed in 2 transverse rows ; areas VII and VIII with a con- 

 tinuous series of about 4-6 rows, of many (over 100) smaller cones, 

 separated from one another, the row on the maxillary side with the 

 larger cones. The jaws are burnt amber, translucent, with about 

 5 poorly marked teeth, the fang proportionately long. 



The identity of these two specimens with N. callaona is in some 

 doubt because of the greater number of paragnaths on the oral ring ; 

 these are disposed in more than 2 transverse rows on areas VII and 

 VIII. Nereis heterocirrata Treadwell is obviously the same as Nereis 

 callaona Grube, a possibility that Fauvel has already pointed out (in 

 litt). 



NEANTHES ROOSEVELTI, n. sp. 

 Figs. 2, c-h 



Collection. — Station No. 15-38; 2 specimens. 



Length to 10 mm., number of setigerous segments to 50. The 

 dorsum crossed by dark brown, segmental, transverse bands ; a simi- 

 lar pigment on the sides of the prostomium and the inner sides of the 

 palpi. 



