NO. 1112. PBOCEEDINCrS OF THE NATIONAL MUSEUM. 391 



The general body color is browu, the sides sparsely and vaguely 

 mottled. The pectorals are pale. A narro\y, dark band extends from 

 the middle of the eye downward and forward, a similar band running 

 backward from the eye on the i^reopercle; an interrupted semicircular 

 band from eye to eye across the nape. D. LYII; A. II, 39-40. 



The species is named for Mr. N. Grebnitski, to whose industry and 

 zeal the Museum is indebted for many valuable collections. 



OPISTHOCENTRUS QUINQUEMACULATUS, Kner. 



(Plate XXXV.) 



Opisthoce7}trus quinquemaculatiis, Kxer, Sitzb. Ak. Wiss. Wien, LVIII, 1 Abtb., 

 June-December, 18G8, pp.340, 341, pi. vii, tig. 20. — Steixdachner, op. cit., 

 LXXXII, 1 Abth., July, 1880, p. 262. 



The genus Opistliocentrus, Kner, differs from Centronotus [Murcenoides] 

 in its thicker body, in the tlexibility and height of its dorsal rays, 

 except the last 11 to 13, which are spiny; from Stichccus in lacking ven- 

 trals and also in the flexibility of the numerous anterior unarticulated 

 dorsal rays. Jaw teeth rounded at the point. Vomerine teeth; pala- 

 tines absent. (Steindachner.) 



No. 38937, U.S.N.M. Petropaul ski, 1883; N. Grebnitski. Two speci- 

 mens, male and female. Drawn; one specimen, sex not determined. 



i^o. 38958, U.S.X.M. Petropaulski, September, 18S3; N. Grebnitski. 

 Eight specimens. 



Ko. 47555, U.S.N.M. Petropaulski; L. Stejneger. One specimen, 7^ 

 inches long, female. Dorsal 58, the last 9 or 10 being stout spines. Six 

 black blotches on dorsal. 



No. 33859, U.S.KM. (2588). Three specimens, 3.1 to 3.G inches long, 

 and with the dorsal blotches varying in number from five to seven in 

 regular gradation. 



No. 33848, U.S.N.M. (2G20). One specimen, 6 inches long. Petro- 

 paulski, Kamchatka, September 23, 1883. Dorsal rays 58, the last 8 

 stout spines. Five black spots on the dorsal. 



Dr. Steindachner is justified in his remark that this species was 

 not first taken at Pinang or Singapore, but in De Castries Bay; it is a 

 resident of Kamchatka and the adjacent region, as the collections of 

 Stejneger and Grebnitski will show. 



OPISTHOCENTRUS QUINQUEMACULATUS, Kner (.'). 



No. 47565, U.S.N.M. Yesso, Japan; N. Grebnitski. D. 54, the last 

 15 si)ines; A. 38. 



Length of fish to caudal base, 5Jf inches; length of head, 1 inch; 

 depth of body, seven-eighths of an inch; eye equal to snout, 4J in 

 head. Maxilla reaches to front of eye. A narrow, dark baud under 

 eye. Body with narrow, dark-brown reticulations. About seven round- 

 ish black spots on the dorsal. 



