496 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. xxxi. 



Type.- — Cat. No. 55609, U.8.N.M. Three other specimens were 

 obtained from the same locality June li^; these measured 130, 135, and 

 140 mm. in len^-th, respectively'. We take pleasure in naminj;- this 

 species for Dr. David Starr Jordan in recognition of his prolific 

 studies of the Japanese tish fauna. 



Fam ily PL V. U RON ECTID.^. 



FLOUNDERS. 



173. PSEUDORHOMBUS CINNAMOMEUS (Temminck and Schlegel). 



KAREI, 



Kochi, May 7, one specimen, 255 mm. lono-. 



174. PSEUDORHOMBUS PENTOPHTHALMUS Giinther. 



Kochi, May 11, one specimen, 175 nun. long. 



175. PLEURONICHTHYS CORNUTUS ( Temminck and Schlegel). 



Kagoshima and Yamagawa, June 12, 14, and 16, three specimens, 

 120, 128, and 195 mm. long. 



LAMBDOPSETTA" Smith and Pope, new genus 

 (Pleuronectidas). 



Body sinistral, elongate, thin, the dorsal and ventral outlines similar; 

 both sides of ])ody and head covered with tine cycloid scales; lateral 

 line with a small acute arch beginning over branchial slit; mouth small, 

 straight, oblique; fine teeth on l)lind side of jaws; eyes close together, 

 separated by a high, naked ridge; gill-rakers small, triangular and 

 few; dorsal fin beginning over anterior margin of eye, the 2 anterior 

 rays separated from other; pectoral fins present on both sides; ventrals 

 large and close to anal; ventral of left side with 6 rays, inserted on 

 median ridge, that of right side smaller but with 7 rays, inserted on 

 underside of body. 



This genus resembles Arnoglonsus^ but differs from it principally in 

 the short rudimentary gill-rakers, the length of the maxillar}^, and fin 

 characters. It diflers from Monolcue^ a nearly related genus, in the 

 presence of 2 pectoral fins and of cycloid scales on both sides of body. 



Type of genvs. — Lamhdopseftn I'tfaJiane. 



176. LAMBDOPSETTA KITAHAR/E Smith and Pope, new species. 



Head 5.75 in length; depth 2.87; eye in head 2.5; pectoral of eyed 

 side 1.4 in head, of blind side 1.(5; scales in lateral line 100; dorsal 

 103; anal 76. 



Body very thin and elongated; anterior dorsal profile but slightly 

 stronger than that of lower; caudal peduncle equals diameter of eye; 

 head very short; eyes narrowly separated b}^ a high naked ridge, the 



« Lambdopsetta, from the A-^haped beud in the lateral line. 



