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UNITED STATES NATIONAL MUSEUM BULLETIN 296 



Figure 14. — Kochlorine anchorella, new species: a, female, side view from Chama from 

 Heron Island, Australia; b, detail of operculum of another specimen from Chama from 

 Heron Island, small bifid teeth are on the outer edge of the operculum; c, opercular 

 horizon of a specimen from Bursa from Woolgooga, N.S.W., Australia; d, mouth field 

 of the specimen in a. Setation omitted from one ramus of each cirrus. 



This species has the typical kochlorinid three pairs of terminal 

 cirri with caudal appendages, and with strong lateral bars. The main 

 distinguishing features are in the opercula. Each lip of the mantle 

 aperture is armed with an external row of about fourteen bifid teeth, 

 and an inner row of three or four massive anchor-shaped teeth set on 

 tall pillars. The upper surface of these teeth are subdivided. Their 

 resemblance to an anchor suggested the name arichorella. A prow- 

 shaped projection elevates the anteroventral end of the armed area. 

 An opercular knob is present, and armed with a few simple spines. 

 Bristles are numerous over the opercular area, and are often fouled 

 with dark material which makes detailed study difficult. 



