AUSTRALIAN GOBIIDiE McCDLLOCH AND OGILBY. 279 



Identity. — We retain the name clarvriniensis for this species because 

 we are unable to satisfactorily identify it with any of those described from 

 the East Indian Archipelago. It is very similar to 0. 2^oroceph((his, with 

 representative examples of which we have compared it, but the light 

 dorsal and caudal spots offer a striking contrast to the dark markings of 

 those fins in Cnvier and Valenciennes' species. 



We have examined the specimen recorded as 0. opJiiocephalus by 

 Macleay from Rockingham Bay, and find it similar in all details to his 

 cotypes of 0. dimviinensis. This leads us to suppose that the specimens 

 recorded by Klunzinger under the same name from Port Denison and 

 Port Darwin, also belong to Macleay's species. 



This species is deemed a delicacy by the Chinese at Cooktown, 

 Queensland, where it is occasionally secured in large quantities. The fish 

 retains its vitality for some hours after its removal from the water, which 

 is an important factor in its keeping qualities in a hot climate. 



Loes. — Port Darwin, North Australia ; cotypes of the species. 

 Melville Island, North Australia ; Queensland Museum. Cooktown, 

 Queensland ; coll. McCulloch, June 1918. Rockingham Bay, Queensland ; 

 Macleay Museum, as Eleotris o'pltlocephalus. 



Ophiocaka macrolepidota (Block), G'ilnther. 



Eleotris macrolepi dolus, Giinther, Fisch. Siidsee, vi., 1877, p. 186, pi. cxii., 

 fig. b. Id., Weber, Zool. Forschr. Austr., v., 1895, p. 270. Id., 

 Ogilby, Proc. Linn. Soc. N.S.Wales, xxi., 1897, p. 754. 



Eleotris tumifrons (Cuvier & Valenciennes), Ogilby, Ihid., p. 755. 



Giinther identified North Australian specimens as E. inacrolepi dolus, 

 while Weber recorded the species from the Burnett River, Queensland. 

 It is possible that both references are based upon examples of one of the 

 species described above. 



Genus MOGDKNDA, Gill. 



Mogurnda, Gill, Proc. Acad. Nat. Sci. Philad., 1863, p. 270 (Eleotris 

 moqurnda, Richardson). Id., Bleeker, Arch. Neei'l. Sci. Nat., ix., 

 1874, p. 303, and x., 1875, pp. 103, 105. 



KrefftiMS, Ogilby, Proc. Linn. Soc. N.S.Wales, xxi., 1897, p. 736 (Eleotris 

 australis, Krefft). Id., Waite, Rec. Aust. Mus., v., 1904, p. 281— 

 part. 



Body rather robust, compressed, the head large and broad. Scales 

 rather large, mostly ctenoid on the body and cycloid on the head ; 30-40 

 between the pectoral and the hypural joint; they extend forward on the 

 upper surface of the head to between the posterior nostrils, and cover the 

 cheek and operculum. Rows of minute pores extend around the eye, 

 across the cheek, behind the preoperculum and on each side of the 

 mandible. Mouth moderate, oblique, lower jaw projecting ; no barbies. 

 A band of villiform teeth in each jaw, palate toothless. Tongue broad, 



