PECULIARITIES OF PLAICE FKOM DIFFEKENT FISHING GROUNDS. 335 



that the fish iu question resembled gladalis. The specimens were taken 

 in Boston harbour. 



In 1864 Gill gave the name Liojjsctta glabra to Storer's species, and 

 described a new species under the name Euchalarodus Putnami. The 

 description summarised is as follows : D. 55-58, A. 39-40. Two 

 specimens examined, obtained at Salem, Mass. Scales minute, distinct, 

 immersed, each one on the coloured side with several slender teeth 

 behind, directed outwards ; on the light side of the body smooth or 

 uniciliate. Lateral line straight. Head with an osseous ridge con- 

 tinued backwards, where it is expanded and separated from an oblique 

 bony tubercle on the scapula. The name was given from the teeth, 

 which were in a single series and movable. 



In 1878 Tarleton H. Bean pointed out that the movable teeth and 

 certain other minute characters, described by Gill in Euchalarodus, 

 occurred also in P. glabra, and in the plaice, the teeth being movable 

 iu mature specimens in the breeding season ; and that Euchalarodus 

 Putnami was in fact the male of Liopsetia glabra, differing from it only 

 in having more of the scales ciliated. The largest female in the gravid 

 condition was 13i inches long. In the Review of Flounders and Soles, 

 1889, Jordan and Goss confirm Bean's conclusions, and state that 

 they see no difference by which Liopsetia glabra can be separated from 

 P. gladalis. Specimens have been taken from Providence, Ehode 

 Island, to Labrador, so that the southern limit of the species is 41° 

 north latitude. 



Specimens identified as the P. gladalis or cicatricosus of Pallas have 

 been taken in recent years by the U.S. Fishery steamer Albatross, on 

 the west coast of Alaska, north of the Alaska Peninsula, The species 

 is recorded by Bean as taken in Kotzebue Sound, but he gives no 

 description ; the same specimens, however, are briefly described by 

 Jordan and Gilbert in their Sgno2)sis of the Fishes of North America. 

 It is there stated that the dorsal rays are 56, the anal 42 in number ; 

 that the scales are minute, imbedded, ctenoid in the males, smooth in 

 the females. Now, the specimen in Bean's catalogue is numbered 

 27,947, and this very specimen, bearing the same number and labelled 

 from Kotzebue Sound, is now in the British Museum, received from the 

 Smithsonian Institution. I examined it myself, and have recorded its 

 characters in the lists below. It is a female, and yet is strongly ciliated 

 on the fins and all over the body on the upper side, and only a little 

 less on the lower side. On the coast of Alaska then the females are 

 not without spinulation. In Jordan and Goss' Flounders and Soles a 

 female of the same form from Kotzebue Sound is figured, and appears 

 to be the same specimen which I have examined; but the number is 

 quoted as 27,497, probably a mere clerical error. 



