2 PEKcnm 



4. Serranus boelang. [ 211 



Serranus boelang, Cuv. §■ Val. ii. p. 308, vi. p. 514 ; Quoy $ Gaim. Voy. Astrol. Poiss. p. 657, pi. 3. 



fig. 4. 

 nigrofasciatus, Hombr. $ Jag. Voy. Pole Sud, Poiss. p. 36, pi. 2. fig. 1 ; Peters, Monatsber. 



Ak. Wiss. Berl. 1865, p. 105. 

 boeuak, Gunth. Fish. i. p. 112 (not Block). 



■ D.^. A. | L.lat.70. 



Caudalis rounded. Posterior limb of prseoperculum slightly emarginate and finely 

 denticulated. The height of the body is nearly equal to the length of the head, and is 

 contained three times and a half in the total length. The diameter of the eye equals 

 one-fifth of the length of the head, in a species 6 inches long. The upper maxillary 

 bone reaches beyond the vertical from the posterior margin of the orbit. The pectorals 

 are longer than the ventrals, the former reaching as far as the vent. The dorsal spines, 

 the first three excepted, are subequal. The second of the anal is as long as, but stronger 

 than the third, and two-fifths of the length of the head. 



Colour madder-brown, with seven or eight darker cross bands. A still darker spot 

 between the two upper opercular spines. Vertical fins brown, with black edges and 

 scarcely perceptible white marginal lines. Pectorals uniform dark brown. 



Zanzibar. Sunda and Molucca seas. 



5. Serranus rogaa. [289, 374.] 

 Perca rogaa, Forsk. p. 38. 



Serranus rogaa, Cuv. £f Val. ii. p. 349; Riipp. Atlas, Fische, p. 105, taf. 26. fig. lj Gunth. Fish. i. 

 p. 116. 



Var. a [374]. Uniform blackish brown ; fins black-edged. Length 14 inches. 



Var. b [289]. Uniform blackish brown; the caudal with a broad white posterior 

 margin. The posterior part of soft dorsal with a narrow white margin. It may, how- 

 ever, only be an immature specimen. Its length is 9 inches. 



Zanzibar. Bed Sea. 



6. Serranus erythraeus. Plate I. fig. 1. [427.] 

 Serranus erythraeus, Cuv. £f Val. vi. p. 516 ; Gunth. Fish. i. p. 116. 



D. ° A. 5. L. lat. 120. 



lo-K) 9 



Caudalis rounded. The height of the body is contained thrice and two-thirds, and the 

 length of the head thrice and three-fourths in the total length. The eye is small, and 

 is contained six times and a half in the length of the head. Upper profile of the 

 head concave. The upper maxillary bone has at its lower anterior angle a process 

 pointing forwards. Preeoperculum finely serrated on both limbs, and distinctly emar- 



