NEW OR LITTLE KNOWN FISHES. 24I 



third (subequal in S. rosaceus)\ dorsal spines lower, 3 

 in head (2% in rosaceus). Scales similar. Mexillones, 

 Peru. 



Here described from MS. notes of Dr. D. S. Jordan, 

 taken from the type in Mus. Comp. Zool., Cambridge, 

 Mass. 



Jenyns described a specimen from Valparaiso as the 

 Sebastodes oculatus of Cuvier and Valenciennes; but 

 pointed out distinctions between the two, which with later 

 knowledge of related species prove beyond a doubt that 

 it is distinct. This specimen probably belongs to Sebas- 

 todes darwini. Jenyns also mentions a figure of an- 

 other species from Valparaiso, very distinct from the 

 others in having the spines of the head less developed. 

 More than 50 species of the genus have been described 

 from the north temperate waters of the Pacific Coast of 

 America, and it is not improbable that the species of this 

 genus will be found numerous in the temperate waters of 

 the South American Coast. 



39. Sebastodes gilberti Cramer, n. sp. Plate xliii. 



Head 2 T V; depth 2^ to 3. D. XIII, 13. A. Ill, 6. 

 P. 17; transverse (oblique) rows of scales 40 to 42; lat. 

 1. (pores) about 39 to 42. Body somewhat compressed, 

 its width over the base of the pectorals nearly two in the 

 depth. Head compressed, profile steep, nearly straight. 

 Preocular, postocular, tympanic and parietal spines and 

 ridges present, all rather delicate, these spines some- 

 what appressed, the parietal ridges diverging backward 

 in slight curves. Interorbital space 1^ in orbit, a little 

 concave, with a pair of low ridges and a shallow median 

 groove between them. Orbit high up, nearly circular, 

 4 in head, its posterior rim at about the middle of length 

 of head. Preorbital scarcely lobate on its ventral margin, 

 usually with one short triangular spine posteriorly. Sub- 



Proc. Cal. Acad. Sci., 2d Ser., Vol. VI. ( 17 ) June 22, 1896. 



