Orr and Matarese: Revison of the genus Lepidopsetta Gill, 1862 



569 



B 



15456. 1(130.5 mm). Hokkaido. Funka 

 Bay; HUMZ 15506. 1(90.7 mm). Hok- 

 kaido. Funka Bay: HUMZ 94034. 1( 193.5 

 mm). Hokkaido, off Tomakomai, 300 m: 

 UBC 58-355. 2(204-240 mm). Japan: 

 l^SNM 150380. 1(130.6 mm). Hokkaido; 

 USNM 077125. 1( 166.1 mm). 104 km S of 

 OseSakU Albatross Sta. 5067, 35.0972°N. 

 138.6875°E. 536 m; Russia: USNM 77126. 

 1(244.2 mm). Gulf of Tartary off SW 

 coast of Sakhalin 1., Albatross Sta. 4999. 

 47.6389°N. 141.65°E; USNM 77127. 

 1(247.4 mm). Aniwa Bay, approaching 

 Korsokov. Sakhalin I., 73 m. Albatross 

 Sta. 5008. 46. 1306°N. 142.6222''E; USNM 

 77130. 1(280.3 mm). Gulf of Tartary off 

 SW coast of Sakhalin I.. 57 m. Albatross 

 Sta. 5000, 46.55°N. 142.7083°E; USNM 

 77128. 1(257 mm). Aniwa Bay, approach- 

 ing Korsokov, Sakhalin I.. 77 m. Albatross 

 Sta. 5007. 46.05°N. 142.5167°E; USNM 

 77135. 1(246.8 mm). Sakhalin I., off Kor- 

 sokov Lt.. 39-56 m, Albatross Sta. 5010, 

 46.55°N. 142.725°E. 



Diagnosis 



Lepidopsetta mochigarei is a species of 

 Lepidopsetta with the following combi- 

 nation of characters in adults; total gill 

 rakers on first arch 6-10. on upper arch 

 1-3; total gill rakers on second arch 

 7-10; supraorbital pores 1-3; preopercu- 

 lar pores 8-13; lateral-line pores 95-119; 

 sum of scales above and below lateral 

 line 91-108; interorbital narrow; blind- 

 side coloration white, and glossy high- 

 lights along myotome margins increasing 

 anteriorly. 



Larvae are distinguished from other 

 species oi Lepidopsetta by having the fol- 

 lowing combination of characters; body 

 deep, increasing rapidly with develop- 

 ment and snout-to-anus length moder- 

 ate; larvae undergoing notochord flexion 

 at comparatively larger sizes; preflexion 

 pigment pattern with three prominent 

 spots along margin of dorsal finfold and 

 two spots along ventral finfold. three 

 patches along postanal dorsal midline 

 aligned with finfold spots to form slightly offset opposing 

 patches, posteriormost dorsal spot coalescing with a corre- 

 sponding ventral spot to form a bar; pectoral-fin rays pig- 

 mented (Okiyama and Takahashi, 1976; Nagasawa, cited 

 in Okiyama. 1988). 



Description of adults 



Body ovate, relatively deep, greatest depth 45.5-61.1 

 (51.7)*^ SL. scales above lateral line 35-45 scales below 



8 9 mm SL 



10 6 mm SL 



D 



Figure 20 



Lar\'ae o{ Lepidopsetta mochigarei Snyder (figures reproduced from Okiyama. 

 1988): (A) 4.3 mm, Japan Sea (Okiyama and Takahashi, 1976); (B» 8.9 mm. 

 Sea of Japan lOkiyama and Takahashi, 1976); <C) 10.6 mm. Sea of Japan 

 (original illustration of Nagasawa. cited in Okiyama. 1988. locality implied in 

 te.xti; (D) 1.5.3 mm. Sea of Japan (original illustration of Nagasawa. cited in 

 Okiyama. 1988. locality implied in text). 



lateral line 52-67; head relatively short and robust, 

 length 23.3-30.5 (26.2)'7f SL; dorsal margin of head at dor- 

 sal-fin origin nearly linear, snout length 3.3-6.2 (4.3)'^ 

 SL (12 7-20.2 (16.1)7f HL); ocular-side maxilla length 

 24.6-29.4 (27.2)Vf HL; blind-side maxilla length 27,3-32.9 

 (29.7)7f HL; ocular-side mandible length 36.6-44.6 (39. 7)'7f 

 HL; teeth 6-10 on ocular-side premaxilla. 23 on blind- 

 side premaxilla and 8-15 on ocular-side dentary. 21-28 

 on blind-side dentary; gill rakers of first arch broad and 

 robust. 6-10 total. 1-3 on upper arch, 4-7 on lower; gill 



