BY -W, A. HAS'^ELL, M.A., B.So. 473 



very broad at tlie base ; flagellum with, twelve segments. Outer 

 antennfe equalling tlie inner in length ; flagellura with eight 

 segments. Length ^ inch. 



ITah. Port Jackson. 



Sphroroma (?) anoniala, .<?^. nov., Plate XYL, fig. 4. 

 Bod}^ smooth, strongly convex, frontal region prominent ; last 

 segment of the thorax longer than the preceding five, produced 

 in the middle line behind to an obtuse angle ; first abdominal 

 segment witli a broad, shallow excavation in its posterior border, 

 defined on either side by a minute, spinous process. Last 

 abdominal segment with a transverse row of one central, larger, 

 and two lateral, smaller tubercles ; apex sub-acute, armed below 

 on either side with a minute acute process. Eami of abdominal 

 appendages ovate, sub-acute. Length 5/1 G inch. 



Ilah. Port Jackson. 



This species approaches Isocladus in the form of the last segment 

 of the thorax, and Cymodocea in that of the last segment of the 

 abdomen. 



Sphperoma la)vis, .<y;. nov., Plato XYL, fig. 5. 



Thorax nearly as broad as long, the first segment longer than 

 the others, all the segments grooved and bent slightly backwards 

 laterally — the lateral and posterior extremities of the segments 

 subacute. Terminal segment of the abdomen smooth, convex, 

 rounded distally. Caudal appendages narrow-lanceolate, blunt. 

 Length 3/16 inch. * 



Hah. Bondi, near Sydney, on sandy beach. 



Cymodocea pubescens, Milne-Mwards, fsp.J Plate XYIL, fig. 1. 

 J Sphseroma pubescens, 3I.-Edw., Hist. nat. Crust. III., 209. 

 Strongly convex, tomentose. Frontal lobe obtuse. Antero- 

 lateral angle of the fii'st thoracic segment produced below the eye 

 into a triangular acute lobe ; postero-lateral angle similarly 



