NO. 1 HARTMAN : POLYCHAETOUS ANNELIDS 111 



6, fig. 138). Composite hooks are bidentate, the accessory tooth as large 

 as, or larger than, the distal one (pi. 6, fig. 135). Pectinate setae are 

 strongly asymmetrical. 



The maxillary formula is about as follows: maxillae I are falcate; 

 maxilla II has 5 teeth left, 4 right; maxilla III has 7 teeth left, none 

 right. 



L. filamentosa Treadwell (1921, p. 40) appears to belong to this 

 species, or its variety, paupera Grube, as described by Okuda (1937, p. 

 276). In it the branchiae are first present somewhat farther back and the 

 prostomial antennae are longer. E. afra Monro (1933, p. 66) has bran- 

 chiae already from the seventh setiger, and the dorsum is marked with a 

 reticulated pattern ; I believe it may be what is herein being designated E. 

 mutilata (below). 



Distribution. — E. afra has been widely reported from areas of the 

 Indo-Pacific (Fauvel, 1919, p. 374, 1932, p. 135) and from the West 

 Indies (as L. filamentosa Treadwell). The collection of the Velero III 

 is the first record from the eastern tropical Pacific ; it is intertidal. 



Eunice guanica (Treadwell) 

 Plate 6, Figs. 142-144 



Leodice guanica Treadwell, 1921, pp. 39-40, pi. 2, figs. 9-12, figs. 107- 



116. 

 f Leodice notata Treadwell, 1921, pp. 52-54, pi. 4, fig. 12, figs. 164-173. 



Collection.— A 50-39 (1). 



The prostomial antennae are short, smooth, the longest about twice 

 as long as the prostomium. Peristomial cirri are short, smooth, about 

 half as long as the peristomial ring. The first branchiae are present on 

 setiger 13 (originally given as somite 17, which is setiger 15). The first 

 and second branchiae have one filament each, the third to fifth have 2 

 filaments each, the sixth have 3 or 2 filaments each. After this there is a 

 long region where the usual number is 2 or 3 long ones, but some may be 

 again bifurcated. In a far posterior region the number of filaments again 

 decreases to a single one, but they continue to be long, greatly exceeding 

 the dorsal cirri in length. 



Acicula are dark yellow to light brown, bluntly rounded distally (pi. 

 6, fig. 144), single in parapodia. Subacicular hooks are first present from 

 setiger 19, and are a little darker in color than the acicula; they also 

 occur singly in parapodia and are distally bidentate (pi. 6, fig. 143). 

 Composite hooks are pale, distally bidentate (pi. 6, fig. 142). 



Unique features are (1) the long simple (or rarely double) branchial 

 filaments, present from about the thirteenth setiger and continued nearly 



