RECORDS OF W.A. MUSEUM. 
216] 
a. Outer row of teeth considerably larger than the others. 
Scales extending forward to below origin of soft dorsal. 
Gnathypops. 
b. Body and fins light with numerous small dark brown 
spots ----- macnlatus. 1 2 
bb. Body and fins dark, sometimes with irregular scattered 
dark spots - inovnatus 
bbb. Head with small, body with large incomplete brown 
rings, dorsal, anal and caudal with oblique bars, the 
former with a large black spot anteriorily. 
darwiniensis. ! 
aa. Outer row of teeth scarcely larger than the others. 
Scales not extending forward beyond middle of pectorals. 
Merogymnus. 
c. Scales very small, covering the greater part of the 
sides and belly ... eximius. 3 
cc. Scales larger, confined to hinder half of body, belly 
na ^' ec l - - - jacksojiiensis . 4 5 
I have compared the types of Batrachus punctulatus, Ramsay r ' 
and Opisthognathus macnlatus, Alleyne and Macleay 1 and find them 
to be the same species. 
Family GERRIDAE. 
Genus PAREQUULA, Steindachner. 
PAREQUULA MELBOURNENSIS, Castelnau. 
Gems melbournensis, Castelnau, Proc. Zool. Soc. Viet,, I., 1872, pp. 158, 245, and 
lot. cit., II., 1873, p. 37. Id., Macleay, Proc. Linn.’soc. 
N.S. Wales, V., 1881, p. 380. 
Parequula bicornis, Steindachner, Denks. Akad. Wiss. Wien, XLI, i,, 1879, p 8 
Id., Klunzinger, Sitzb., Akad. Wiss, Wien, LXXX , R 
1879, p. 380. 
Chthamalopteryx melbournensis, Ogilby, Proc. Zool., Soc., 1887, p. 616, figure. 
Id., McCulloch, Zool. Res. " Endeavour " I , pt. 1. 
1911, p. 63. 
Having compared the description of Parequula bicornis with the 
specimens on which Ogilby based his genus Chthamalopteryx, I have 
no doubt that the two names refer to the one species. According 
to Steindachner the scales are ctenoid (ciliated) along the edge and 
1 Alleyne and Macleay, Proc. Linn. Soc. N.S. Wales, I, 1877, p 
fig. 3. 
2 Macleay, Proc. Linn. Soc. N.S. Wales, II, 1878, p 
3 Ogilby, Proc. Roy. Soc. Qld., XXI, 1908, p. 18. 
* Macleay, Proc. Linn. Soc., N.S. Wales, V, 1881, p. 570. 
5 Ramsay, Proc. Linn. Soc. N.S. Wales, VIII, 1883, p. 177. 
280, pi. IX, 
355. pi- IX, fig. 3. 
