388 ACAjSTTHOPTERTGII. 



alone the suborbital ring of bones, and one or two along tlie cbceks. In some specimens there is a spot of blue 

 on many of the scales of the bod3'. 



lliiljitat. —From the Red Sea through those of India to the Malay Archipelago and beyond. The 

 specimens figured (life-size) are from the Andamans. 



9. Glyphidodon leucogaster, Plate LXXXI, fig. 3. 



Bleeker, Labr. Cten. p. 2G; Gunther, Catal. iv, p. 46; Klunz. Yerh. z. b. Ges. Wien, 1871, p. 523. 



B. V, D. xi.^3, P. 17, V. 1/5, A. T^^^, C. 17, L. 1. 2G-28, L. tr. 3/12. 



Length of head.4|, of caudal 4^, height of body 2\ in the total length. Eyes — diameter 2f in length of 

 head, 2/3 of a diameter from end of snout, and 1^ apart. Preorbital with a shallow notch, its greatest width 

 equals nearly 1 diameter of the eye : suborbital ring narrow. Teeth — narrow, about 4G in the upper jaw. 

 j'/^js— dorsal spines, after the second, subequal in length : soft portion of dorsal rather jiointed. Second anal 

 spine as long as the head excluding the snout, the soft portion of the fin rounded. Caudal forked with pointed 

 lobes. Scales — extend forward on the top of the head to the snout, they also cover the preorbital and suborbitals. 

 Colours — olive-brown, becoming lighter on the sides and yellowish on the abdomen. Upper edge of dorsal and 

 outer two-thirds of anal black, the rest of the fin and the ventral yellow. Outer margin of caudal dark. A 

 black spot at base of pectoral fin. 



EabHat.—'Reil Sea, East coast of Africa, Nicobars to the Malay Archipelago. The one figured (life-size) 

 is from the latter locality, for it I have to thank Professor Schlegel and Dr. Hubrecht of Leyden. 



10. Glyphidodon modestus, Plate LXXXI, fig. C. 



Schleg. Overz. Amphr. &c. in Verh. Nat. Gesch. Ned. Overz. Bezitt. p. 23, t. vi, f. 2 ; Bleeker, Sumatra, 

 ii, p. 285 ; Giinther, Catal. iv, p. 55 ; Kjier, Novara Fische, p. 246. 



B. V, D. \i, P. 18, V. 1/5, A. iV, C. 15, L. 1. 23-24, L. tr. 2i/8. 



Length of head 4^, of caudal 5, height of body 3^ in the total length. I^yes —diameter 2f to 3 in length 

 of head, 2/3 to 3/4 of a diameter from end of snout, and 1 apart. The greatest depth of the preorbital is a 

 little more than half the diameter of the eye, posteriorly the suborbital ring of bones rapidly narrows. Teeth — 

 compressed, notched at their extremities, and about 36 in the upper jaw. jPi?!S— the dorsal spines gradually 

 increase in length to the last, soft dorsal and anal somewhat rounded, caudal slightly cleft and having rounded 

 lobes. Scales — extend forward on the top of the head to opposite the front edge of the eye : none on the 

 preorbital or suborbital ring of bones. Colours — yellowish-olive, becoming lighter on the sides and beneath : 

 the outer third of dorsal and anal fins grayish : a brownish dot superiorly at the base of the pectoral fin. 



Habitat. — Andamans through the seas of India to China. The one figured (life-size) is from the 

 Andamans. 



11. Glyphidodon Sindensis, Plate LXXXII, fig. 2. 



Day, Sea Fisheiy Report, 1873, Appendix, p. cclxiii. 



B. V, D. ^.-V^, P. 11», V. 1/5, A. „^„, C. 15, L. 1. 26, L. tr. 3^/10. 



Length of head 3| to 4, of caudal 4^ to 4|, height of body 2| to 3 in the total length. %<;s— diameter 3 in 

 length of head, 1/2 a diameter from end of snout, and 1 apart. Preorbital in its widest part not equal to 1/3 of the 

 diameter of the eye, suborbital ring of bones narrow. Teeth — in a narrow row, about 50 in the upper jaw, their 

 summits notched. Fins— dorsal spines increase to the fourth, all the posterior ones about equal : soft dorsal rather 

 produced in its centre : caudal forked, upper lobe the longer, and may be produced, more especially in the 

 young : pectoral rounded, as long as head without the snout : soft dorsal and anal scaled. Scales — on the 

 summit of the head extend forward as far as the snout, also on pre- and sub-orbitals. Colours — deep violet, 

 extending on to the dorsal and anal fins : pectoral hyaline with a dark mark at its base : ventral nearly black : 

 the posterior extremities of the dorsal and caudal canary yellow : all the scales on the upper part of the body 

 and free portion of the tail with a light blue central spot. Some blue lines about the head in the young, which 

 has also the free portion of the tail yellow and the chest light coloured. 



Habitat. — Numerous in the harbour at Kui-rachee in Sind. The one figured (life-size) is from that 

 locality, where I did not obtain them larger. 



Genus, 6 — Heliastes, Cuv. and Val. 



Furcaria, Poey. 



Branchiostegals five : pseiidohraiwhice. All the opercles entire. Teeth in the Jaws conical, in a narrow and 

 irregular mo. Scales of moderate size. Dorsal fin with 12 to 14 spines : anal with two. _ Lateral-line in a talalar 

 form not continued heyond the end of the base of the dorsal fin. Air-vessel piresent. Pyloric appendages two. 



SYNOPSIS OP INDIVIDUAL SPECIES. 



1. Heliastes Iqndurus, D. f^Iff, A. ~-^, L. 1. 26-27. Olive, scales with a blue dot. East coast of Africa 

 to the Malay Archipelago and beyond. 



