'3. DASCYLLUS. 11 



Lutjanus triiasciatus, Bl. Schn. p. 5G8. 



Holacantlnis biaculeatus, Lacep. iv. pp. 528, 537. 



Holocentrus sonneratii, Lac6p. iv. pp. 344, 391. 



Scoi-psena aculeata, Lacep. iii. pp. 258, 268. 



Premnas trifasciatus, Cuv. Sf Veil. v. p. 405 ; Cm\ Begne Anim. Bl. 



Potss. pi. 32. fig. 2; Schleg. Overz. Amphipr. ^c. inVerhand. Nat. 



Gesch. Nederl. Overz. Bezitt. p. 20. tab. (3. fig. G; Bkek. Vet-hatid. Batav. 



Genootsch, xxi. .Labr. Cten. p. 9. 



Var. y. 



Premnas semicinctus, Cuv. ^ Vol. v. p. 409. pi. 133. fig. 1 ; Bleek. Ver- 

 Iiand. Batav. Genootsch. xxi. Labr. Cten. p. 7 ; Gti&>: Iconogr. Regne 

 Anim. iii. pi. 19. f g. 5. 



Chsetodon, sp., Seba, iii. tab. 26. fig, 19. 

 Premnas unicolor, Cuv. ^- Val. v. p. 4l0. 

 Sargus ensifer, Gronov. Syst. ed. Gray, p. 66. 



B. 5-6. D. ^,. A. -V . L. lat. 60-70. Csec. pylor. 3. 



18-10 14-15 ^ -' 



Eeddish-brown ; fins with a black margin. Generally three pearl- 

 coloured cross-bands. 

 East Indian Archipelago. 



Var. a. The bands encircle the whole body, and the second and 

 third are produced on the middle of the side into a process pointing 

 forwards. 



Var. (3. The bands encircle the whole body, aixd have no process 

 anteriorly. 



a. Fine specimen, Ceram. From the CoUectioJj of Frau Ida PfeifFer. 



b. Half-grown. PhUippino Islands, 



c. Adult female : skeleton, Amboyna. Purchased of Mr, Frank, 



Var, y. The bands do not descend beyond the middle of the side. 



Var. 3. The bands are very indistinct. 



d. Adult : skin. From Gronow's Collection, 



3, DASCYLLUS. 



Dascyllus, Cuv. Rkgiie Anim. 

 Tetradrachmum, Cant. Mai. Fish. p. 240. 



Praeoperculum and sometimes the praeorbital serrated. Teeth small, 

 villiform, in a narrow band, with an outer series of somewhat larger 

 ones. Dorsal fin with twelve or thirteen (in D. polyacaniJms with 

 seventeen) spines, anal with two. Scales of mode rate size, in less than 

 thirty transverse series. The lateral line ceases below the soft dorsal 

 fin. Branchiostegals five ; gills three and a half ; pscudobranchigD 

 present ; air-bladder large. Pyloric appendages two or three. 



From the eastern coasts of Africa to Polynesia and New Zealand. / 



