8 



PROCEEDINGS OF THE NATIONAL MUSEUM 



basally, tapering distally; sheaths may completely enclose lateral 

 antennae. Paired palps very long, tapering, and smooth. Prosto- 

 mium with triangular pigmented area around base of ceratophore of 

 median antenna, extending posteriorly between the two large eyes. 



Figure 3. — Bathyadmetella commando, new species: a, dorsal view anterior end, styles of 

 median antenna and left tentacular cirri missing, ceratophores of lateral antennae hidden 

 by antennal sheaths (shown In dotted lines on right); b, same, ventral view; c, anterior 

 view of achaetous parapodium of tentacular segment (I); styles of tentacular cirri missing; 

 d, posterior view of left achaetous parapodium of buccal or first elytragerous segment 

 (II). (anSh = antennal sheath, bC = buccal cirrus, elp = elytrophore, fT==facIal tubercle, 

 lP = lamellar papilla, tSh=^ tentacular sheath.) 



Fhst or tentacular segment (figs. 3a-c) forms short ring dorsally, 

 projecting laterally to prostomium, achaetous, with 2 pairs long 

 slender tentacular chri similar to lateral antennae, cirrophores short, 

 cylindrical, with a projectmg acicular process. Pahed long tentacular 



