1. GERKES. 261 



21. Gerres filamentosus. 



Russell, i. p. h'2. pi. 68. 



Gerrea filanientosu.s, C'uv. ^ Val. vi. p. 482 ; Bleek. Verh. Bafar. Ge- 

 nootsch. .xxiii. 31<-enid. p. 11. 



pimctatus, Bkel;er, Topoyr. Bcitav. (not C'uv.). 



Catochfenum Hlamentosum, Cant. Catal. p. 56. 



D. ^. A. |. L. lat. 45. L. transv. 6/12. 



The height of the body is twice and one-third in the total length 

 (without caudal tin). The spine.s of moderate strength ; the second 

 of the dorsal fin produced into a filament, which sometimes extends 

 to the caudal. The scaly sheath of the dorsal fin is high. The 

 second anal spine is stronger and shorter than the third, one-third of 

 the length of the head. 



Coasts of the East Indies and of North Australia. 



a, b. Adult : not good state. Molucca Sea. Purchased of Mr. Frank. 



c. Adult : stuffed. Cape York (in 68 fathoms.) Voyage of the • Rat- 

 tlesnake.' 



d-e. Adult and half-grown : skins. Pinang. From Dr. Cantor's Col- 

 lection. 



22. Gerres macracanthus. 



Bleeker, Ncttuurk. Ti/dschr. Nedcrl. Lid. 185-4, vi. p. 195. 

 D. ^. A. y. L. lat. 43. L. transv. 5/11. 



The height of the body is contained twice and two- thirds in the 

 total length (without caudal). The diameter of the eye is a little 

 less than one-third of the length of the head, and nearly equal to 

 the extent of the snout and to the width of the interorbital space. 

 The groove for the processes of the intermaxillaries is pointed pos- 

 terioi'ly, naked, and extends beyond the vertical from the anterior 

 margin of the ej'c. The free portion of the tail is nearly as high as 

 long. The scaly sheath of the dorsal fin is low. The second dorsal 

 spine very long, sometimes extending to the caudal. The second 

 anal spine is stronger and shorter than the third, one- third of the 

 length of the head. Silveiy ; each dorsal ray and the posterior spines 

 with a blackish dot near the base. 



Java, Nias, Banka. 



a. Five inches long. From Dr. P. v. Bleeker's Collection. 

 23. Gerres oyena. 



Labrus oyena, Forsk. p. .35 ; Bl. Sch)i. p. 245 ; LacSp. iii. p. 463. 



Spams ervthrunis, Bl. tab. 261 (verv bad). 



Cjchla erylhrura, Bl. ScJin. p. 330. 



Spai'us britunnus, Lacep. iv. pp. 132, 134. 



Labrus longirostris, Lacip. ill. p. 407. pi. 19. fig. 1. 



Rmaris oyena, Riipp. Afl. p. 11. taf. 3. fig. 2. 



Gerre.s oyena, Cuv. c^- Val. vi. p. 472; ? Jov/m, Zool. Beagle, Fishes^ 



p. 59; Bleek. Verhand. Bafar. Genootsch. xxiii. Mmiid. p. 12. 

 oblongus, Bleek. Topoyr. Batav. (not Cur.). 



