186 ON SOME NEW AUSTRALIAN MARINE ISOPODA, 



applied to the border of the terminal segment, ending in two 

 sub-acute teeth. Length about £ an inch. 



Bab. Port Philip. 



Cilicsea crassa, sp. nov. 



Surface covered with rounded granules and a short pubescence. 

 First segment of the thorax as long as the two following ; lateral 

 angles of the thoracic segments rather prominent, sub-acute. 

 Process of first abdominal segment very thick, closely applied 

 and cemented to the surface of the last segment, extending beyond 

 the apex of the latter and ending in a broad bifid extremity. Last 

 segment of the abdomen with two conical elevations : terminal 

 notch wide ; mesial lobe triangular, acute. Immobile ramus of 

 uropoda rudimentary, mobile ramus notched externally towards 

 the apex and with a low blunt tooth on the inner border. Colour 

 light brown, with many of the granules and a line bordering the 

 process of the first abdominal segment, bright crimson. Length 

 1 inch. 



Sab. Port Jackson. 



Genus Zuzara, Leach. 



Zuzara integra, sp. nov., Plate III., fig. 6. 



Male. — Surface nearly smooth. Body slightly depressed, 

 increasing a little in breadth posteriorly, greatest breadth about 

 half the total length. Head moderately convex, with a few flat 

 granulations. First segment of the thorax nearly as broad as the 

 two following ; all the segments of the thorax sometimes marked 

 laterally with a series of faint longitudinal impressed lines, 

 sometimes completely smooth. Epimera very distinct, their lateral 

 angles produced, sub-acute, that of the penultimate segment much 

 produced backwards. Last segment of the thorax produced in 

 the middle line behind into a rather slender process, which is 

 about equal in length to the three preceding segments, sub- 

 cylindrical, but depressed dorso-ventrally, not dilated at the apex 



