AUSTRALIAN MALACOSTEACA. 283 



Genus Codonophilus, Haswell. 

 Body slightly convex, abdomen markedly narrower than the 

 thorax, with six free articulations ; terminal segment lamellar ; 

 epimera distinct though small ; head rather narrower than the 

 first segment of the thorax. Eyes very large ; antennas sub-equal, 

 stout, inserted under the head. Mandibles with elongate palpi. 

 Maxillipedes small, operculiform, three jointed. Thoracic limbs 

 all anchor-like, with long dactyla. Posterior abdominal appen- 

 dages free, uniramous. 



487. Codonophilus argus. 



CodonopJiihis argus, Haswell, 1. c, p. 471, pi. xvi., fig. 1. 



Eyes very large, extending on the under surface of the head. 

 Thoracic appendages sub- equal, all with much elongate, curved 

 and pointed dactyli. Ramus of abdominal appendages falciform 

 with a few scattered cilia. Terminal segment scale-like, acuminate. 

 Length A in. 



Eound under the bell of a Bhizostoma in Port Jackson. 



This species approaches jEgathoa, Dana, in many respects ; but 

 differs from it in the sudden narrowing of the body at the 

 commencement of the abdomen, and the uniramous character of 

 the caudal appendages. 



Sub-Family OurozeuktmcB. 

 Last segment of the abdomen transverse, the rest coalescent. 



Genus Oueozeuktes, Milne-Edw. 



Body broad, depressed, oval. Head small, received into an 

 eKcavation in the first segment of the thorax. Antennas short 

 and conical. Eirst pair of abdominal appendages very large, 

 covering the whole of the following pairs, and also folding round 

 on each side to cover the lateral portions of the abdominal 

 segments. 



488. Ourozeuktes Owenii. A.M. 

 Ourozeuktes Owenii, M.-Edw., 1. c, t. iii., p. 276, pi. xxxiii., 



fig. 8 ; Heller, Reise der Novara, Crustacea, p. 148. 



Head very small ; front trilobed ;. eyes circular and lateral, 

 Thorax very broad (the fourth segment having more than six 



