288 A MONOGRAPH OF THE AUSTRALIAN APHRODITEA, 



and not dilated subapically. The inner peristomial tentacles are 

 very stout, subconical, as long as the preestomials, transversely 

 ringed ; the outer peristomials have the undivided basal portion 

 very long, as long as the head, the distal portions of about the 

 same length, and in shape similar to the praestomials. Dorsal 

 cirri rather short, of shape similar to that of the tentacles, but 

 more distinctly clavate. The scale-tubercles are rather prominent. 

 The elytra have the inner and posterior surface divided by narrow 

 cuticular ribs into very irregular polygonal areae ; anteriorly and 

 externally the centres of these arese project as rounded elevations, 

 and round the border these are succeeded by a series of very 

 stout cylindrical ^' cilia." The ventral tubercles are inconspicuous. 

 The ventral setse are similar to those of Thormora argus, curved 

 at the extremity, and subacute, with four teeth in each lateral 

 row, the last tooth longer than the rest, triangular and acute : 

 the dorsal setae are very slender, like those of Iphione ovata, 

 pinnate with broad lateral teeth. The body is almost colourless ; 

 the head red with black markings near the base of the tentacles. 



A male and female of this species full of ripe sexual products 

 were dredged in shallow water near Watson's Bay, Port Jackson, 

 in the beginning of June. 



Genus Antinoe, Kinberg. 

 Antinoe (?) grisea. 



Antmoe {?) australis, Baird, 1. c, p. 193; Polynoe grisea ^ 

 Quatrefages, 1. c, p. 250 ; Polynoe australis, Schmarda, Neue 

 Wirbellose Thiere, I., ii., p. 154. 



The body is flat, 14 mm. long, 5 mm. broad, with 27 rings 

 and 13 pairs of elytra. The back is reddish -yellow, the ventral 

 surface yellowish-grey. The seven feelers are smooth, yellowish, 

 and provided towards the end with a transverve black band. The 

 elytra are bluish-grey ; their surface is provided with scanty 

 small elevations, visible only under high power ; the borders 



