568 



Fishery Bulletin 98(3) 



Lepidopsetta 

 kaido, Otaru 



Girard ( 1856) described Platichthys 

 umbrosus on the basis of a single spec- 

 imen deposited at the USNM, which 

 was collected at Cape Flattery, Wash- 

 ington, by Lieutenant W. P. Trow- 

 bridge. One lot listed in the catalog, 

 USNM 607, bears the collector's name 

 as Trowbridge and a collection date of 

 1856, and thus the single specimen of 

 this lot appears to have been the one 

 examined by Girard for his original 

 description. From the original descrip- 

 tion, the specimen is approximately 

 190 mm TL. Unfortunately, this lot 

 cannot be found and is presumed miss- 

 ing or destroyed.'^ 



Girard was apparently unaware of 

 Ayres'( 1855a. 1855b) description ofL. 

 bilineata (Leviton and Aldrich, 1997). 

 Although Gtinther (1862) considered 

 Platichthys umbrosus distinct (basing 

 his conclusion on the dried skins iden- 

 tified as P. umbrosus taken off Van- 

 couver Island, Canada, and on the 

 descriptions of L. bilineata provided 

 by Ayres), later authors have treated P. umbrosus as a 

 synonym of L. bilineata (Lockington, 1880a, 1880b; Jordan 

 and Gilbert, 1881; Jordan and Evermann, 1898; Norman, 

 1934; Schmidt, 1950), and the name has not been used 

 at the species level since Lockington's (1879b) misiden- 

 tification of Isopsetta isolepis. Lepidopsetta polyxystra n. 

 sp. also ranges south along the east coast of Vancouver 

 Island, the "Inside Passage," to Puget Sound, and larvae 

 of the new species have been recorded from the extreme 

 northwest coast of Vancouver Island. Although L. bilin- 

 eata is present, but uncommon, off the west coast of Van- 

 couver Island, no adults or larvae of L. polyxystra n. sp. 

 have been collected off Washington (Cape Flattery and 

 south), despite the intensive survey efforts of the 1995 

 and 1998 NMFS triennial surveys, during which all cap- 

 tured Lepidopsetta were examined. Although the original 

 description is insufficient to refer it to either of these spe- 

 cies, the type locality lies well within the known range of 

 L. bilineata and outside that of L. polyxystra n. sp. and we 

 therefore consider Platichthys umbrosus to be a synonym 

 of L. bilineata. 



Cope's (1873) description of Pleuronectes perarcuatus. 

 from a specimen taken somewhere along the eastern Pacific 

 Ocean coast of Alaska, perhaps near Sitka or Unalaska 

 Island, included a comparison with Girard's Platichthys 

 umbrosus but not with Ayres's Platessa bilineata . Although 

 the holotype is badly damaged, especially about the head, 

 the gill-raker count and structure, as well as presence 

 of at least one supraorbital pore at the dorsal margin of 

 the orbit,'* indicate the holotype is L. bilineata. The speci- 

 men has a high lateral-line pore count at the upper range 

 of counts for L. bilineata. The name has been considered 

 synonymous with, or a subspecies of, L. bilineata by later 

 authors (Jordan and Gilbert, 1881; Jordan and Goss, 1889; 

 Jordan and Evermann, 1898; Wilimovsky et al., 1967). 



\4\ 



Figure 19 



mochigarei Snyder, holotype, USNM 68245, ll 174 mm), Japan, Hok- 

 Market, 1906. After Snyder (1912). 



Lepidopsetta mochigarei Snyder, 191 1 



Ricecake sole 



Asabagarei 



Figs. 1-2, 7, 19-20; Tables 3-10, 13 



Lepidopsetta mochigarei Snyder, 191 1:547 (original descrip- 

 tion, two specimens: holotype by original designation, 

 USNM 68245, male, 174 mm, and "cotype." SU 21430, 

 145 mm TL, both from the market at Otaru, Hokkaido, 

 Japan). 



Lepidopsetta bilineata mochigarei Taranets, 1937:144 (new 

 combination, keys). 



Pleuronectes mochigarei Sakamoto, 1984a:99 (new combi- 

 nation, phylogenetics). 



Material examined 



Adults 27 specimens, 90.7-280.3 mm, including holotype 

 hsted above. Japan: CAS-SU 113378, 1(257.5 mm), Bonia- 

 siri Shima, off N end of Rebun To., 45''25.5'N,140°53'E, 22 

 September 1906; CAS-SU 122548, 1(146.7 mm), Tsugaru 

 Strait/Sea of Japan, between Hakodate, Hokkaido and 

 Ebisu, Sado I., S of Cape Tsiuka, 41°35.8333'N, 140''36.75'E, 

 16 July 1906; HUMZ 56717, 1(154 mm), Hokkaido, off 

 Kushiro; HUMZ 58576. 1(189 mm), Hokkaido, off Otano- 

 shike; HUMZ 58566, 1(197.5 mm), Otanoshike, off Hok- 

 kaido, 20 m; HUMZ 58563, 1(200.5 mm), Otanoshike, off 

 Hokkaido. 20 m; HUMZ 58568, 1( 171.5 mm ), Otanoshike, off 

 Hokkaido; HUMZ 58567, 1( 184 mm), Hokkaido, off Otano- 

 shike; HUMZ 87820, 1(175 mm). Hokkaido, off Muroran. 

 135 m; HUMZ 80974, 1( 190.5 mm), Hokkaido, off Muroran; 

 HUMZ 81056, 1(167.5 mm), Hokkaido, Usujiri, Minamika- 

 yabe; HUMZ 90912, 1( 142.5 mm ), Hokkaido, off Tomakomai, 

 300 m; HUMZ 64730, 1< 116.6 mm), Hokkaido, Funkawan; 

 HUMZ 15505, 1(107.2 mm). Hokkaido, Funka Bav: HUMZ 



