6. GLTPHTDODON. 51 



proceeding above the eye to the snout, a third through the eye to the 

 maxillary, a fourth below the eye ; body with more or less numerous 

 blue spots ; two black ocelli edged with blue on the dorsal fin, the 

 anterior on the base of the posterior spines, the posterior smaller and 

 on the base of the posterior rays. Some specimens with a large 

 bluish transverse spot on the body, below the fourth and sixth dorsal 

 spines. 



Either or several of these characters may be absent : — 



Var. a. The posterior dorsal ocellus is absent : G. antjeruis. 



Var. /3. The blue spots on the body are scattered and not nume- 

 rous ; two dorsal ocelli ; no transverse spot on the body : G. biocel- 

 latus. 



Var. y. The blue spots on the body are numerous ; two dorsal 

 ocelli ; no blue lines along the forehead : G. punctulatus. 



Var. I. Body with a bluish transverse spot : G. fasciatiis. 



Var. e. Nearly all the markings disappear sometimes in large 

 specimens : G. rossit. 



From the eastern coasts of Africa thi'ough the Indian Archipelago 

 to Polynesia. 



Var. /3. 

 a. Half-grown. 



Var. S. 

 6, c. Half-grown. Amboyna. Purchased of Mr. Frank. 

 cL Adult. Borneo. 



37. Gljrphidodon plagiometopon. 

 Sleeker, Singapore, p. 67. 



D. T7^.- A- f/r.- L. lat. 26-28. L. transv. 3/9. 



14-13 14-15 / 



The height of the body is rather less than one -half of the total 

 length (the caudal fin not included) ; the upper profile of the head 

 is very oblique and very slightly convex ; snout longer than the eye ; 

 the pi-seorbital, above the angle of the mouth, equals the width of the 

 orbit ; teeth truncated. Caudal fin obliquely truncated ; the length 

 of the last dorsal spine is three-fifths of that of the head. Brown : ■ 

 head and the base of the soft dorsal and anal fins dotted with blue ; 

 each scale on the sides with a blue transverse streak. 



Coasts of Singapore and Java. 



a. Six and a half inches long. From Dr. P. v. Bleeker's Collection. 



38. Glyphidodon unimaculatus. 



Glyphisodon imimaculatus, Cuv. 6f Vol. v. p. 478 ; ScMcff. Overz. Am- 

 phipr. Sfc. in Vcrhand. Nat. Gesch. Nederl. Ovcrz. Bezlit. p. 23. taf. 6. 

 fig. 1 ; Blcek. Sumatra, ii. p. 284. 



balinensis, Bleek. Verhand. Batav. Genootsch. xxii. Bali, p. 9. 



D. 1^. A. ^. L. lat. 26. L. transv. 2 7. 



The height of the body is contained twice and a third in the total 



e2 



