AUSTEALIAN MALACOSTEACA. 299 



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

 process of the first abdominal segment bright crimson. Length 

 1 in. 

 Port Jackson. 



G-enus Zuzaea, Leach. 

 General form of the body as in Cynwdocea. Last segment of 

 the thorax produced in the male into a mesial process. 'Rami of 

 caudal appendages large. 



516. Zuzara diadema. 



Zuzara diadema, Leach., Diet, des Sci. Nat., t. xii., p. 544 ; 

 Desmarest, Cons., p. 299; Milne-Edwards, Hist. Nat. Crust., 

 t. iii. ( p. 212. 



Body smooth. Prolongation of the last thoracic segment 

 dilated in the form of a diadem. Outer ramus of the caudal 

 appendages ending gradually in a rounded point. \_Leach.] 



Australia. 



I have seen no specimens of this or the following species. 



517. Zuzara armata. 



Cymodocea armata, Milne-Edwards, Hist. Nat. Crust., t. iii., 

 p. 215, pi. xxxi., fig. 16 (1840). 



Seventh segment of the thorax very large and prolonged above 

 the abdomen in the form of a conical tooth. Mesial tooth of 

 the last segment of the abdomen prominent and bifid ; external 

 ramus of the caudal appendages smaller than the internal. 

 Length 3 lines. [M.-H.'j 



Seas of Australia. 



518. Zuzara integra. A.M. 

 Zuzara Integra, Haswell, 1. c, p. 6, pi. 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 



