260 EXPEDITION TO JAPAN. 



11. PLATYCEPHALUS ISIDIATOR? Block 



Plat, insidiator, Cuv. and Tal. vol. IV, 227, cum al. cit. 

 " " Faun. Jap. Pisces, 39, pi. 15, f. 1. 



Notes. — Yedo Bay, (7^ inches,) with a Chinese name meaning sandy scale. 



It seems doubtful whether the true P. insidiator is found in Japan. The eyes of the figure 

 before us, as well as those of the so-called P. insidiator in the Faun. Jap., are much smaller 

 than those of the true kind, besides other differences. The range, from the Red sea to Japan, 

 seems too great for such a delicate fish. It will probably be found that Schlegel's species is a 

 new one. 



12 and 13. SEBASTES MARMORATUS, Cuv. and Val. 



S. marmoratus, Cuv. and Val., IV, 345. 



" Schlegel, Faun. Jap. 46, pi. 21, fig. 1. 



" " Bleecker, Nalezingen &c. 



PLATE IV, figs. I 



Notes. — Figure 1. From Simoda. Cosango, (9 inches,) reduced? D. 14. 12, A. 3. 9, P. 

 17. (10 free,) &c. 

 Figure 2. From Simoda. Kasagu, (9 inches,) reduced? D. 12. 12, A. 3. 5? P. 16. 

 (6 free.) 



The characters necessary to determine the position of these two Sebastes are not sufficiently 

 distinct in the drawings, which are no doubt quite correct as to color. They may be different 

 sexes of 8. marmoratus, though the first one, in its number of fin rays, seems to agree with 

 the S. variabilis of Pallas, which however has no spines over the eyes. The second one seems 

 to correspond in its number of fin rays and colors with the S. albofasciatus of Lacepede, Cuv. 

 Val. IV. 344, which is supposed by Schlegel to be only a variety of the marmoratus. 



The colors of figure 1 are as follows : Of a general dull carmine, with broad cloud-like spaces 

 of bluish dusky, and blotches of dusky brown on the sides and abdomen. Head of the same 

 ground color, with smaller blotches of dusky. Lower part of opercles lighter, with dots and 

 bars of brown. Irides red and brown. Dorsals dull brownish carmine, with numerous small 

 spots of brown on the spinous portion ; the spots on the soft portion being arranged in four series 

 parallel to the back. Caudal brown at the base, ending with orange, the rays annulated with 

 brown in four concentric series like spinous dorsal with tinges of orange. Pectorals light. Anal 

 orange, brown at base ; the rays annulated in three series with brown. Ventrals dull reddish. 



The second figure differs considerably from the first in color, and somewhat in its form and 

 fin rays, enough probably to constitute a different species, were it possible to compare actual 

 specimens. The drawings no doubt represent large fish, though the notes do not give the size 

 of life. 



This last figure shows a fish of a general vermilion red color, blackish along the back of 

 body and head. The head with irregular bars or blotches of dark dusky. Irides, red and 

 yellow. Body marbled with indistinct blotches of dusky, the red ground color being varied with 

 tinges of yellow. First dorsal blood red with a few spots of dusky on membrane. Second 



