A generic review of the lysianassoid family Uristidae and descriptions of new taxa from Australian waters (Crustacea, Amphipoda, Uristidae) Author Lowry, J. K. Author Kilgallen, N. M. text Zootaxa 2014 2014-09-26 3867 1 1 92 journal article 3965 10.11646/zootaxa.3867.1.1 e5bb465f-e713-45c1-8e0f-2c6125494b44 1175-5326 5585734 B7C6EC5F-5AA3-43B1-BD3D-D8111E0EC3A7 Caeconyx Barnard & Karaman, 1991 ( Fig. 3 ) Caeconyx Barnard & Karaman, 1991: 473 . Type species. Hoplonyx caeculus Sars, 1891 , original designation. Included species. Caeconynx includes one species: C . caeculus ( Sars, 1891 ) . Diagnostic description. Antenna 1 peduncle article 1 without anterodistal lobe; accessory flagellum forming cap covering callynophore . Antenna 2 without brush setae. Mandible molar setose with vestigial triturating surface. Maxilla 1 outer plate a well developed 7/4 crown. Maxilla 2 inner plate slightly shorter than outer plate. Gnathopod 1 subchelate ; coxa 1 large, about as long as coxa 2, subrectangular with straight anterior margin ; ischium short (length less than 2 × breadth); carpus long (length 2 to 4 × breadth); propodus margins subparallel . Uropod 2 inner ramus not constricted. Telson deeply cleft . Remarks. Caeconyx has no distinctive generic level characters. It appears to be similar to Anonyx . It differs from Anonyx in the mandibular palp which is attached midway in Anonyx (attached distally in Caeconyx ) and the margins of the gnathopod 1 propodus which are tapering in Anonyx . Distribution. North-eastern Atlantic Ocean. Iceland to Trondheimsfjord.