IS4 DISCOVERY REPORTS 



showing a rather large main tooth is correct, but often the teeth are worn down or 

 broken away, when the heads of the crochets are Hke those figured by Mcintosh for 

 L. japonica. 



Lumbrinereis heteropoda, Marenzeller. 



Crossland, 1924, p. 4, text-figs. 1-7, with synonymy. 

 Occurrence. St. WS 4 (7). 



Specific characters. The head is conical. The feet increase in length from before 

 backwards, and in the hinder region the posterior lip of the foot is produced into a long 

 and often erect cirriform process. In the front region there are capillary bristles only, 

 and farther back there are both capillary bristles and simple crochets. The latter first 

 appear between the loth and 40th feet. This is a large species measuring as much as 

 7 mm. in breadth. 



Lumbrinereis cingulata, Ehlers. 



Ehlers, 1897, p. 76, pi. v, figs. 1 19-124. 

 Occurrence. St. WS 755 (2); WS 762 (2); WS 834 (2). 



Specific characters. I have with some hesitation attributed these specimens to 

 Ehlers' species. One complete example measures 59 mm. by 2 mm. for 82 chaetigers 

 and there are several much larger fragments measuring 3-4 mm. in breadth. Only the 

 specimens from St. WS 762 show traces of the speckling regarded by Ehlers as charac- 

 teristic of this species. Ehlers describes this species as speckled on both surfaces with 

 small dark spots, except intersegmentally and except for a narrow dorsal transverse 

 band in the middle of the segments. In several of these specimens, but not in all, a 

 transverse ridge or thickening of the cuticle can be seen in the middle region of the body 

 connecting the feet across the back, in exactly the position of the mid-segmental un- 

 pigmented band in the speckled specimens. Moreover, there is a marked tendency in 

 the middle region for the front border of the segments dorsally to overlap and to be 

 folded over the hinder border of the segment in front. 



The head is bluntly ovate or more or less globular. The first buccal segment is 

 apparently incomplete ventrally, where it is replaced by a prolongation of the second 

 buccal segment. 



The anterior lip of the foot is low and rounded and the posterior shows a short, blunt 

 prolongation which has no relative increase in the hinder region. In the front region 

 the bristles consist of winged capillaries and compound crochets with narrow flanges. 

 Between the loth and 20th chaetigers the compound crochets are replaced by simple 

 crochets, and in the middle and hinder regions a dift'erent type of capillary bristle takes 

 the place of the ordinary winged capillaries. In the middle and in the hinder region 

 except for a few terminal segments there are one or two bristles about equal in length 

 to the crochets and having very wide wings confined to a short area not far below the 

 fine hair-like tip. These wings are curved backwards in a characteristic manner. The 

 feet are supported by two brown acicula. 



