NEW COTTID FISHES BOLIN 



29 



end of pectoral base; a cirrus on one or two of the lateral line scale 

 margins under the anterior part of second dorsal; one to three cirri 

 on about 10 scattered scale margins below the lateral line; none 

 above lateral line. 



Table 1. — Measurements of holoiype of Ricuzenius nudithorax 



Measurement 



Percent of 



standard 



length 



Standard length 



Origin of lirst dorsal to pelvic base 



Origin of second dorsal to anal origin 



Least depth of caudal peduncle 



Distance between dorsal ends of pectoral bases 



Length of head 



Dianaeter of orbit 



Length of snout 



Length of maxillary 



Snout to origin of first dorsal 



Base of first dorsal 



Snout to origin of second dorsal 



Base of second dorsal 



Snout to anal origin 



Base of anal 



Snout to dorsal end of pectoral base 



Snout to ventral end of pectoral base 



Width of pectoral base 



Length of pectoral 



Snout to pelvic base 



Length of pelvic 



Length of caudal 



Snout to anus 



61. 

 12. 

 11. 



3. 

 10. 

 20. 



6. 



5. 



9. 

 17. 

 12. 

 29. 

 24. 

 30. 

 20. 

 18. 

 15. 



6. 

 19. 

 17. 



8. 

 13. 

 26. 



20. 9 



19. 3 

 6. 2 



16. 3 

 33. 3 

 10. 

 8.8 

 16. 2 

 28. 9 



20. 1 

 47. 2 

 39.2 

 49. 3 

 33. 9 

 29.7 

 25. 8 

 10.3 

 31. 3 

 27.9 

 14.2 

 22. 5 

 43. 6 



General body color in alcohol brownish yellow. Top of head with 

 a reddish-brown patch ; cheeks marbled with the same color. Back 

 crossed by 5 reddish-brown cross bars; the first under middle of 

 first dorsal, extending downward and forward to upper end of 

 pectoral base; the second, under the anterior part of second dorsal, 

 extending downward to near base of anal; third and fourth bars, 

 under middle and posterior end of second dorsal, bifurcating at level 

 of lateral line and tending to merge ventrally; fifth bar on caudal 

 peduncle sending a branch posteriorly to base of caudal fin. First 

 dorsal marked anteriorly and posteriorly with prominent distal 

 patches of color. Second dorsal, caudal, and pectorals barred with 

 reddish brown. Pelvics and anal colorless. 



HoJofype. — U.S.N.M. no. 102101; a specimen 61.3 mm in standard 

 length, from Albatross station 5031, Yezo Strait, Japan, lat. 44°04' 

 N., long. 145°32' E., 86 fathoms. This is the only specimen known. 



