786 PISHES OF INDIA. 



spine is " not quite one-tbird the length of the head," and it is manifestly improbable that 

 any Diagramma would have the length of its head equalling nearly three times the height 

 of the body when that height is " thrice and two-fifths in the total length." In fact the 

 form is similar to that figured as Z>. griseum, C.V. 



In the " Fishes of Zanzibar " it was pointed out that D. griseum was subject to 

 variations in colour, and one was figured showing four whitish curved cross bands. There 

 is no genus of Asiatic marine fishes with more variation in the colour of individual 

 specimens and local races than shown in that o? Diagramma. While I stated that in the young 

 some sinuous and narrow light blue lines exist over the snout and cheeks, and also several 

 sinuous blue lines taking an oblique direction from the head upwards, and which extend to 

 nearly the length of the body. 



Page 92. Stnagris japonicus. Add synonym. 



Dentex filamentosus, Steind. Sitz-Bert. Akad. Wien. 1868, p. 97G. 

 ,, hlochii, Bleeker, Atl. Ich. viii, p. 90, Perc. t. Hi, f. 4. 



Page 93. For Stnagris notatus read S. TJ;jsiOPTERas. Add synonym. 



Dentex toeniopteriis, Cnv. and Val. vi, p. 246 ; Bleeker, Atl. Ich. viii, p. 83, Perc. t. Ivi, f. 5. 



Page 96. For Datnioides polota read D. quadeifasciatus. Add synonyms. 



Choetodon quadrifasciatus, Sevastian, Mem. Acad. St. Peters. 1809, i, p. 448, t. xviii. 

 Datnioides quadrifasciatus, Bleeker, Atl. Ich. viii, p. 32, Perc. t. xxvii, f. 1. 



Page 97. Gerres setifer. Add synonym. 



Gerres altispinis, Giinther, Introd. Study of Fish, p. 388, and fig. 159. 



Page 106. For Chj;todon guttatissimus read C. miliaeis. Add synon. 



Chcetodon guttatissimus, Giinther, Fische Siidsee, i, p. 46, t. xxxv, f. A. 



„ citrinellus, Cuv. and Val. vii, p. 27 ; Giinther, 1. c. p. 47, t. xxxv, f. B. 

 Tetragonoptrus miliaris, Bleeker, Atl. Ich. ix, p. 39, t. 377, Chset. t. sv, f. 3. 



Page 107. For Chj)todon vittatus read C. trifasciatus. Add synonyms. 



Chcetodon tau nignim, Cuv. and Val. vii, p. 38 {young). 



Citharoedus vittatus, Kaup, Arch. Nat. 1860, p. 142. 



Tetragonoptrus trifasciatus, Bleeker, Atl. Ich. ix, p. 35, t. 377, Chsetod. t. xv, f. 1. 



Page 108. For Chjitodon lunula read C. fascia'ius. Add synonyms. 



Chcetodon fasciatus, Forsk. Descrip. Anim. p. 59. 



,, flavus, Bl. Schn. p. 225. 



,, ocellatus, Bleeker, Timor, p. 212. 



,, u'ieheli, Kaup, Chsetod. i, p. 126. 

 Tetragonoptrus fasciatus, Bleeker, Atl. Ich. ix, p. 41, t. 374, Chsetod. t. xii, f. 2. 



Page 109. For Chj;todon oligacanthus read C. ocellatus. Add synonym. 



Parachcetodon ocellatus, Bleeker, Atl. Ich. ix, p. 24, pi. 377, Chsetod. t. xv, f. 4. 



Page 110. Zanclus coKNurns. Add synonyms. 



Chcetodon canescens, Linn. Syst. Nat. i, p. 466 (young). 



Zanclus centrognathus, Cuv. and Val. vii, p. 528 ( ,, ). 



Chcetodon nudus, Gronov. ed. Gray, p. 76. 



Zanclus canescens, Giinther. Catal. ii, p. 493 {young). 



Gnathocentrum centrognathum, Guichen. Ann. Soc. Linn. Maine et Loire, ix, Ich. p. 4 



(young). 

 Zanclus cornutus, Bleeker, Atl. Ich. ix, p. 77, Chfetod. t. iv, f. 1, 2. 



Page 126. Add 



Family— MALACANTHID^, Gunther. 



Branchiostegals from five to six : pseudobranchisB present. Gill-openings wide, the membranes united 

 beneath the throat. Gills four, with a slit behind the fourth. Body elongated and compressed, lips thick. 

 A posterior canine tooth in the premaxillaries. Dorsal and anal fins with many rays, the first few of the 

 former not being articulated. Ventrals thoracic with one spine and five rays. Scales small, and finely ctenoid. 

 Air-bladder simple. Pyloric appendages absent. 



