REPORT OF COMMISSIONER OF FISH AND FISHERIES. [42] 



129.— ECHIOSTOMA Lowe. (135) 



491. Echiostoma barbatum Lowe. B. (471) 



130.— MALACOSTEUSi Ayres. (136) 



492. Malacosteus niger Ayres. B. (472) 



131.— ASTRONESTHES Richardson. (137) 



493. Astronesthes niger Richardson. B. (473) 



Family XLVIII.— ARGENTINIDiE.» (46 part.) 



132.— MICROSTOMA Cuvier. (138) 



494. Microstoma grcenlandicum Reinhardt. G. (474) 



133.— MALLOTUS Cuvier. (140) 



495. MaUotus villosus Miiller. A. G. (475, 476) 



134.— THALEICHTHYS Girard. (141) 



496. Thaleichthys pacificus Richardson. A. Ana. (477) 



135.— OSMERUS Linnaeus. (142) 



497. Osmerus thaleichthys^ Ayres. C. (478) 



498. Osmerus mordax Mitchill. N. Ana. (480) 



499. Osmerus dentex Steiudachuer. A. (481) 



136.— HYPOMESUS Gill. (143) 



500. Hypomesus pretiosus Girard. C. (482) 



501. Hypomesus olidus Pallas. A. (483) 



137.— ARGENTINA Linnpeus. 



502. Argentina syrtensium Goode & Beau. B. (484) 



138.— HYPHALONEDRUS^ Goode. (145) 



503. Hyphalonedrus chalybeius Goode. B. (485) 



increase in size backwards, and teeth on the palate enlarged, one on each side of the 

 vomer aud several on the palatines; moderate dorsals obliquely opposed, forked 

 caudal and pectorals, eacli with a separate aud specialized uppermost ray." ("Ttt;;/?, 

 above; ;fop£(jTOf, split, in allusion to the division of the pectorals.) 



The species U. tanneri Gill, from the Gulf Stream in deep water, has not been 

 described. 



' According to Dr. Bean, the so-called barbel at the throat in Malacosteus niricr is a 

 muscle apparently concerned in the movement of the mandible. 



2 The Argeniinince may well bo regarded as a family distinct from the USalmonidw, dif- 

 feriug in the form of the stomach, as stated in the Synopsis. 



^Osmerus nitenuaim Lockin^ton, an extremely doubtful species, is here omitted, as 

 also the land-locked varieties of O. mordax. 



^ This genus perhaps belongs to the ScoxjelidcB. 



