294 



ME. E. I. POCOCK ON THE 



a median longitudinal darker band running from the anterior 

 to the posterior border. Basal portion of upper surface of keels 

 dark brown, passing into yellow towards the apex ; raised margin 

 of keels clear yellow ; a dark-coloured band passing from the base 

 of one keel to that of the other, and cutting the longitudinal band 

 at right angles, forms with it a cross-shaped mark. Upper portion 

 of the sides of each somite dark chocolate-brown, passing below 

 and on the underside into light brown ; under surface of keels 

 pale yellow. Head almost black. Posterior portion and keels 

 of first dorsal plate yellow ; anterior portion black. Legs clear 

 yellow; antennae yellow, with apical segment and distal end of 

 penultinate segment brown. 

 Body smooth and shining. 



Keels almost horizontal, slightly raised, situated at the summit 

 of the sides of the segments. Antero-external border very 

 convex and bearing in a depression the foramen repugnatorium. 

 Keels of first segment well developed and slightly depressed. 



First dorsal plate more than double as wide as it is long ; very 

 nearly as wide as the second and double as long as the keel- 

 bearing portion of the second. 



Keels of posterior segments strongly projecting backwards. 

 Head with a median longitudinal sulcus. 



Each dorsal plate bearing a transverse sulcus running from the 

 base of one keel to that of the other. Posterior portion of each 

 dorsal plate obscurely striated longitudinally. Posterior somite 

 triangular, truncate, bifid, bearing three tubercles on each side. 

 Subanal plate rounded, with a tubercle on each side of the 

 middle line. 



A single female specimen from King Island. The right 

 antenna is abnormally developed, having one segment fewer than 

 the left. 



This species may at once be distinguished from the preceding 

 by 1 Ik: difference of colour, by the slightly raised keels, and by the 

 convexity of the antero-lateral margins of the keels. 



Family Iultd^e. 



Genua SPIBOSTBEPTUS, Brandt, Ball. Mosc. 183e3, p. 203. 



Subgen. Nodopvge, Brandt, 

 Sim itoHTHKj"njH(Noi)OL»Y(iii ) ovi n atuh, Kar8oh f Zeit8i Natunviss. 

 Jiv. p. 2W. (Hate XXV. figs. 2-2 c.) 



Length 158 mm. Number of somites 02 to 00. 



