ArsTiJAMAN (ioi;iii),i.: — McrrLr.ncM and ooirjiY. 2(15 



Genus OxYKi.EOTKis, lUeel-er. 



O.njeleolris, Bloekei', Arch. Ni'erl. So. Nat., ix., 1874, p. 302. 



Bleeker's papers on lliis genus being unavailable to us, we follow 

 Weber in regarding I'Jleotrix iinimu'vhttnfi, Macleay (=^1']. lineiihtlns, Stein- 

 dacliner) as a species of O.ryeleotris. Tf this be correct, the genus can only 

 be distinguished from Eleotris by its dillerent physiognomy and in lacking 

 a pieopeicular spine. 



OxYELEOTRlR LINEOLATUS, Steindnchiier. 



Eleotris Ilw'dhitiis, Steindachner, Sitzb. Akad. Wiss. Wien, Iv. i., 1867, 

 p. 13. 



/Eleotris planiceps, Macleay, Proc. Linn. Soc. N.S.Wales, vii. i., 1882, p. 

 69 (not E. phon'ccps, Castelnau, 1878, nor E. planiceps, Macleay, 

 1883). 



Eleotris ii)imaciih(fi(s, Macleay, Proc. Linn. Soc. N.S.Wales, viii. 2, 1883, 

 p. 268. 



? Eleotris selheimi, Macleay, Ihid., ix. 1, 1884, p. 33 — substitute name for 

 E. planiceps, prooccupied. 



Eleotris crescens, De Vis, Proc. Roy. Soc. Qld., ii., 1886, p. 33. 



Eleotris (Oxyeleotris) heterodon, Weber, Nova Guinea, v. 2, 1908, p. 255, 

 pi. xiii., fig. 7. 



D. vi/10; A. 9; P. 17; V. i/5 ; C. 16. 60 scales between tlie axil 

 and the hypural joint, and 20 between the anterior dorsal and anal 

 rays. 



Depth before the ventrals 5"1 in the length from the premaxillary 

 symphysis to the hypural joint ; head, excluding the mandible, 28 in the 

 same. Eye 9 in the head, and 1'9 in its distance from the pi-emaxillary 

 symphysis ; it is 23 in the interorbital space, which is 3"8 in the head. 

 Breadth before the pectoral bases 01 greater than the depth ; depth of 

 the caudal peduncle 25 in the length of the head. Second and third 

 dorsal spines subequal, 2-8 in the head ; fourth dorsal ray 2*2, seventh 

 anal ray 2'1 in the head. 



Head depressed broader than deep. With the exception of the snout 

 and under surfaces, it is entirely covered with small cycloid scales. The 

 upper surface of the head, cheeks, opercles, and mandible are traversed 

 by numerous series of minute mucigerous papillae, which are largely 

 hidden among the scales ; tliere is an open pore above the posterior 

 nostril, and several others around the preopercular border. Eye supero- 

 lateral, much shorter than the snout. Interorbital space broad, nearly 

 flat, and completely covered with minute scales which extend forward to 

 between the posterior nostrils. Preopercular margin entire, the angle 

 without a spine. Snout produced, rounded anteriorly, the mandible 

 projecting far beyond the upper jaw ; the posterior processes of the 

 premaxillaries form a protuberance on the snout, which produces a 

 characteristic convexity of the profile anteriorly. Anterior nostril in a 



