PISCES, i83 
Dcntcx rujyestris and 2). urgyrozona are described bj Kner^ 1. c. pp. 61 & 63. 
Synagris tcmioplerus described by Kner, I, c. p. 269. 
Synagris grammicus, sp. n., Day, Proc. Zool. Soc. 1865, p. 14, or Fish. Ma- 
labar, p. 26, pi. 4, from Cochin. 
Pentapm. Prof. Kner unites Ileterognathodon (Blkr.) witli this genus 
(Novara, Fisch. p. 59), and makes remarks on Pentapus setosus and Ilete- 
rognath. xanthophura (p. 61). 
Casio carnlaurens. Prof. Kner regards C, striatus (Riipp.) as identical 
■with this species, 1. c. p. 65. 
Scolopsis. Prof. Kner has made remarks on S. margaritifer and S, tor- 
quatiis. Novara, Fische, pp. 58 & 59. He says, that " tlie second anal spine 
of the former species is by no means thicker and shorter than the third, as 
asserted by Gunther ; probably he (Dr. G.) has examined from one side only, 
if he had done it from the other also he would have designated the third as 
the stronger spine.” The Recorder begs to reply, that he does not remember 
whether he examined the specimen from one or both sides in the j'^ear 1859, 
but that it would have been quite an exception to his usual method of exa- 
mination, if he had not lopked at both sides in this case, especially as he was 
well aware of the different appearance of the two sides of the spines, and 
finally, that in the specimen examined (10 inches long) the second spine is 
absolutely stronger and shorter than the third. 
Squamipinnes. 
Chatodon. Prof. Kner has made remarks on the following species : — ■ 
Ch. setifer [which he confounds with C)i. am'iga\ Ch. ornntissimus, Ch. octo- 
fasciatus, Ch. collaris, Ch. vittatus, Ch. decussatus, Ch. chrysozonus. Novara, 
Fisch. pp. 97-102. On Ch. reticulatus, ibid. p. 271. 
Heniochiis varius. Notes on the coloration by Kner, 1. c. p. 103. 
Holacanthus. Prof. Kner has made some remarks on H. sexstriatus and 
H. mesoleucus, 1. c. pp. 104 & 105. 
Scatophagus ornatus (C. k V.) is regarded as a distinct species and de- 
scribed by Kner, 1. c. p. 272. 
Scorpis aquipinnis is described by Kner as Scorpis lineolatusy sp. n., 1. c. 
p. 108, taf. 6. fig. 3. 
Nandidas. 
Plesiops corallicola described by Kner, Novara, Fisch. p. 214. 
Trachinops taniatus described by Kner, 1. c. p. 215, taf. 8. fig. 7, 
Mullida;. 
The Recorder regrets to have formerly adopted the genera 
proposed in this family by Sleeker, and founded upon slight 
modifications of ,the dentition. The great number of similar 
species, so easily confounded after a part of the markings have 
disappeared from the action of spirits in which they are pre- 
served, renders it most desirable to have some character of 
structure which may be relied upon for the distinction Of spe- 
