A new genus and two new species of Saurodocus (Crustacea: Amphipoda: Melitidae) from Lizard Island, Queensland, Australia Author Yerman, Michelle N. Author Krapp-Schickel, Traudl text Zootaxa 2008 1820 60 66 journal article 10.5281/zenodo.183004 d7698c2a-fe3d-4ab3-8cdc-de58350741b1 1175-5326 183004 Saurodocus gen. nov. Type species. Saurodocus minimarenus sp. nov. , by present designation. Diagnosis. Head anteroventral margin without notch or slit. Maxilla 1 inner plate triangular. Mandible palp first article not distally produced without distal tooth-shaped prolongation, article 2 longer than article 3. Gnathopod 1 coxa anteroventral corner not produced. Pereopod 4 coxa without posteroventral lobe. Epimeral plates lacking serrations on posterior margin. Uropod 3 inner ramus subequal to outer ramus; outer ramus about twice as long as peduncle. Telson deeply cleft, lobes truncated with apical cusps and short apical robust setae. Etymology. A combination of the Greek word Sauros , meaning lizard, alluding to the type locality, with the stem – docus from Ceradocus . Included species. Saurodocus hobbit sp. nov . and S. minimarenus sp. nov. Remarks. Saurodocus belongs to the Ceradocus group — a group of genera within the Melitidae allied to Ceradocus Costa, 1853 , united by a widened triangular inner plate on maxilla 2 and setation on the inner margin of the inner plates of both maxillae. The Ceradocus group will be treated in detail by Krapp-Schickel (in press). Saurodocus , however, appears to be an isolated genus within the group. This may be a result of independent adaptations to an interstitial lifestyle which has not been documented for other genera. Saurodocus is different from other genera in the group owing to a unique set of characters: article 3 of antenna 2 is globular and the anteroventral corner of coxa 1 is not produced. Saurodocus is presently known only from tropical Australian waters.