MCCULLOCH. 115 



CXLII. Family Ophidiidae. 



A. Mandible with an enlarged outer row of teeth, and an inner narrow band of 



smaller ones. Geiiypterus (329). 



AA. Mandible with a narrow band of strong subequal teeth. Otophidium (330). 



329. Genypterus Phillipi, Arch. Naturg. rsiii. i, 1857, p. 268 (nigricans). 

 329a. G. blacodes. Rockling. Ophidium blacodes Bloch & Schneider, 



Syst. Ichth., 1801, p. 484. Genypterus australis McCoy, Frodr. Zool. 

 Viet. dec. iii., 1879, pi. 21, 1 (PI. xxxvii-an allied species G. micro- 

 stomus). 

 A southern species, occasionally captured on the N.S. Wales coast. Length 

 3 feet. 



330. Otophidium Jordan, Rept. U.S. Fish. Comm., 1885 (1887), p. 126 



(omostigma) . 

 330a. 0. gexyopus. Id. Ogilby, P.L.S. N.S.W. xxii., 1897, p. 93. 

 Known from a single shrivelled specimen, 3 inches long, which is possibly 

 the young of the preceding species. 



CXLIII. Family Brotulidae. 



A. Scales imperfect, approximate posteriorly, spaced anteriorly. 



Dermatopsis (331). 

 AA. Scales well formed and imbricate. Monothrix (332). 



331. Dermatopsis Ogilby, P.L.S. N.S.W. xxi., 1896, p. 138 (macrodon). 

 331a. D. macrodon. Id. Ogilby, Ibid., p. 140. 



A translucent, flesh-coloured fish, which lives in rock-pools on the coast. 

 Length 3 inches. 



332. Monothrix Ogilby, P.L.S. N.S.W. xxii., 1897, p. 87 (polylepis). 



332a. M. polylepis. Id. Ogilby, Ibid., p. 88. 



Known from a single specimen which is little more than two inches long. 



SUCKER-FISHES. Order DISCOCEPHALI. 



Elongate fishes with tough leathery skin, and long laminated suctorial discs 

 upon the upper surface of their heads. • These discs enable them to cling to 

 sharks, large fishes, and boats, by which they are carried about without effort 

 to themselves. 



CXLIV. Family Echeneididak. 



A. Inner ventral rays united by membrane, free from the abdomen. Echeneis (333). 



AA. Inner ventral rays attached to abdomen by membrane. Remove (334). 



333. Echeneis Linne, Syst. Nat. 10th ed., 1758, p. 260 (naucrates) . 



333a. E. naucrates. Slender Sucker-pish. Id. Linne, Syst. Nat. 10th 

 ed., 1758, p. 261; Id. Day, Fish. India, 1876, p. 257, pi. 57, 1 (PI. 

 xxxiv.). 



A world-wide species, which is common on this coast. Length 3 feet. 



334. Remora Gill, P. Acad. N. Sci. Philad. 1862, p. 239 (remora). 



334a. R. remora. Short Sucker-fish. Echeneis remora Linne, Syst. Nat. 



10th ed., 1758, p. 260; Id. Day, Fish. Gt. Brit. & Irel. i., 1880-84, p. 



108, pi. 39, 2 (PI. xxxiv.). 

 Occurs in all temperate and tropical seas, but is less common on this coast 

 than the preceding species. Length 12 inches. 



