466 



PROCEEDINGS OF TEE NATIONAL MUSEUM. 



vol. 48. 



Genus HIPPOGLOSSOIDES Gottsehe. 



Cynopsetta Schmidt, Faune Mer. Ochotsk, 1903, p. 19; no description. 



Key to the species of Hippoglossoides. 



a 1 . Dorsal, about 70 to 80; anal, about 50 to 60; gill-rakers, x+ 10 to 12. 



6 1 . Depth of body, 2£; scales cycloid on blind side robustus. 



b 2 . Depth, 2.3 to 2.6; scales ctenoid on both sides of the adult. 

 c 1 . Scales moderately rough; pectoral shorter than half the head, that of blind 



side naked in young and adult propinquus. 



c 2 . Scales everywhere very rough; pectoral longer than half the head; pectoral 



of blind side with ctenoid scales in adult hamiltoni. 



a 2 . Dorsal, about 80 to 90; anal, about 60 to 70. 



d 1 . Dorsal, 86 to 92; gill-rakers, x+ 10 or 11 platessoides. 



d 2 . Dorsal, 79 to 89; gill-rakers, x+ 12 to 19. 

 e 1 . Gill-rakers, x+ 12 to 16; canines more strongly developed; maxillary more 



strongly curved and irregular dubins. 



e 2 . Gill-rakers, x-f- 16 to 19; canines weaker; jaws more regular elassodon. 



HIPPOGLOSSOIDES HAMILTONI Jordan and Gilbert. 



Hippoglossoides hamiltoni Jordan and Gilbert, Rept. Fur Seal Invest., vol. 3, 

 1899, p. 489, pi. 84. 



Measurements in hundredths of length to caudal base. 







5011 



5009 



237 



225 



71 



81 



56 



61 



91 



89 



3-11 



3-12 



28 



28 



41 



40 



6 



6 



5.5 



5.5 



11 



11 



12 



12 



15.7 



14.4 



15.3 



13.2 



10 



9.5 



21 



21 



14 



13 



14 



13 



Types. 



Albatross Station 



Length to caudal base, mm 



Dorsal rays 



Anal rays 



Pores 



Gill-rakers 



Length, head 



Depth , body 



Diame ter, upper eye 



Snout from upper orbit 



Maxillary, eyed side 



Maxillary, blind side 



Pectoral, eyed side 



Pectoral, blind side 



Ventral, eyed side 



Length, caudal 



Height, dorsal 



Height, anal 



"hamiltoni 



robustus 



133 



275 (with C.) 



72 



77 



56 



62 



91 



92 



2,3-11,12 



2,3-11,12 



27.7 



31 



41 



47 



8 



4.5 



5.5 





12.5 



11.2 



14 





21 



12.5 



15 





10.8 



9.2 



24.7 





17 



11.3 



17 



11 



These specimens differ from the smaller type in having a shorter 

 pectoral, and in having the pectoral of the blind side covered with 

 ctenoid scales, it being naked in the type. The measurements of the 

 type of H. robustus Gill and Townsend, 1 made by Dr. C. H. Gilbert, 

 shows it to have a deeper body and shorter fin rays. Jordan and Ever- 

 mann describe the scales of the blind side as cycloid. In E. hamiltoni 

 they are strongly ctenoid, even in the young. 



HIPPOGLOSSOIDES DUBIUS (Schmidt). 



Cynopsetta dubia Schmidt, Faune Mar. Ochotsk, 1903, p. 19. — Jordan and 



Starks, Proc. IT. S. Nat. Mus., vol. 31, 1906, p. 188. 

 Hippoglossoides dubius Schmidt, Pise. Mar. Orient., 1904, p. 227, pi. 6, fig. 1. 

 Hippoglossoides Jcatahurae Snyder, Proc. U. S. Nat. Mus., vol. 40, 1911, p. 546; 



vol. 42, 1912, p. 438, pi. 58, fig. 1. 



» Proc. Biol. Soc. Wash., vol. 11, 1897. 



