POLYCH.ETA. BENHAM. 237 



anterior end, the posterior of which is only slightly smaller 

 than the other. There are no marginal deiiticulations. II. 

 has the ordinary form of a broad plate with five teeth. III. 

 is short, with three teeth, the proximal being small. IV. is 

 bidentate ; and V. has but a single tooth. 



The fifth plate is so closely placed against the fourth that 

 on a first inspection they seemed part of a single plate. 



The lower jaws are long and anteriorly broad ; they lie 

 wholly in front of the support of the upper jawlets, and each 

 is divisible lengthwise into two approximately equal regions ; 

 the outer region is brown, the inner white, being calcified 

 and marked by fine longitudinal lines. 



Remarks. This species differs from the only other species, 

 L. brasiliensis, Kinberg 1 in the following features : in the 

 number of teeth on the jaw plates, in the dimensions of the 

 dorsal cirrus and posterior lip, both of which are narrower 

 than in the present species. Ehlers, 2 who figures this species, 

 says that the worm is whitish-grey. 



LOG. South by south-west of Mt. Cann, Victoria, 55-70 

 fathoms. 



1. Kin berg Anmilata nova, 18fi4. 



2. Ehlers Florida Anneliclen, 1887, p. 107. 



