I)E. BAIRD ON THE APHBODITACEAN ANNELIDES. 185 



mous. Bristles of dorsal brancli few in number, stort, straight, 

 sharp-pointed, and finely striated across. Those of ventral branch 

 are more numerous, much stronger, slightly curved at the point, 

 but becoming broader near the extremity, where it is serrated, 

 the teeth of the serrations being long and prominent. The elytra 

 are 12 pairs, rather rounded, extending laterally beyond the body ; 

 smooth on the edges, roughly tubereulated on the surface, and 

 near the centre marked with a large, round, black spot, like an eye. 

 Dorsal cirri of considerable length, incrassated or club-shaped 

 beneath the extremity, which is marked by a black ring, and, like 

 the tentacle and palpi, terminates suddenly in a sharp point. Ven- 

 tral cirri nearly reaching the extremity of the ventral branch of 

 the foot, slightly incrassated beneath the extremity, which termi- 

 nates in a fine point. Anal cirri of considerable length, and, like 

 the dorsal cirri, club-shaped near the extremity, black-ringed and 

 sharp-pointed. 



Hah. Australia (3fus. Brit.). 



For our specimen we are indebted to Dr. Bowerbank, who ob- 

 tained it from the seas of Australia. 



Sp. 24. Lepidokotus stellatus, sp. nov. 



This animal is about 8 lines in length, and 3 in breadth. The 

 dorsal surface and elytra are of a somewhat uniform olive-colour. 

 The ventral surface is yellow. Head rather small ; tentacle un- 

 fortunately destroyed. Antennae slender, rather short ; palpi 

 stout, conical, short, about the same length as the antennae. Feet 

 stout, biramous ; bristles of ventral branch longer than those of 

 the dorsal, bidentate at the point, and serrated a little below its 

 apex. Bristles of dorsal branch short, straight, and serrated 

 throughout their whole length. Dorsal cirri about the length of 

 the feet and bristles, setaceous. Elytra 12 pairs in number, 

 oval, marked across one half with two divaricating rows of pus- 

 tules. When seen under the microscope, each scale is very 

 prettily marked with numerous lucid dots ranged in rounded 

 spots, like stars. The margins are quite smooth. Segments of 

 body 26 in number ; last segment terminated by two short anal 

 cirri. 



Hah. Australia (Mus. Brit.). 



For a specimen of this species we are indebted to Dr. Bower- 

 bank, who received it from the Australian Seas. 



Sp. 25. Lepidonotus Bowerbankii, sp. nov. 



Animal 6 lines in length, and about 2 broad. The colour is 



