REPORT OF COMMISSIONER OF FISH AND FISHERIES. [32] 

 98.— ALGANSEA* Giranl. (104) 



406. Algansea obesa Girard. R. (408) 



407. Algansea symmetrica^ Baird &, Girard. T. (409) 



408. Algansea bicolor Girard. T. (410) 



409. Algansea parovana'* Cope. R. (411) 



410. Algansea thalassina^ Cope. 



411. Algansea antica Cope. Vsw. (412) 



412. Algansea olivacea '^ Cope. R, 



413. Algansea dimidiata'^ Cope. R. 



§ Siphateles Cope. 



414. Algansea vittata ^ Cope. R. 



^ Leucos Heckel (preoccupied) = J /jra^sfa GJTHTd = MyJoIeucus Cope. Professor 

 Cope (Proc. Ac. Nat. Sci. Phila., 1883, 142) recognizes MyloJeucus and Leucua as distinct 

 genera ; the former with teeth 4-5 ; the latter 5-5. Besides these, he proposes a third 

 genus, Siphateles {I.e. 146), having the teeth 5-5, with grinding surfiice, and the lat- 

 eral line incomplete. Such minute subdivision seems to me undesirable. 



'^ Pogonichthys axjmmetricua Baird & Girard (Proc. Ac. Nat. Sci. Phila., 18.54,136) = 

 Algansea formo8a Girard (i. c. 1856, 183). The original type of P. symmetricus has the 

 teeth 4-5, the maxillary without barbel, the head 4 iu length, the depth 4^. Scales 

 9-53-6. I cannot distinguish it from Algavsea formosa. 



■'Professor Cope regards Myloleucua parovanus as distinct from Algansea bicolor. It 

 is described as follows : 



Translucent, with a plumbeous lateral band ; ventrals and pectoral, dusky ; dor- 

 sal and caudal shaded with dark ; body, rather stout ; muzzle, short, conical ; mouth, 

 very broad, the maxillary reaching front of orbit ; profile, gently arched ; eye, large, 

 3 iu head, equal to interorbital width ; pectorals reaching little more than halfway 

 to ventrals; the latter just to vent. Head, 3^ ; depth, 4J. D. 1,9; A. 1,8. Scales, 

 10-48-5. Teeth, 4-5. L., 12 inches {Cope). Beaver River, Utah; Goose Lake and 

 Klamath Lake, Oregon ; abundant. 



{Atyloleueus parovanna Cope, Proc. Am. Phil. Soc. Phila., 1874, 136 ; Cope «& Yarrow, 

 Zool. Wheeler Son, V. 669, 1876 ; Cope, Proc. Ac. Nat. Sci. Phila., 1883, 143.) 



' Myloleucus tlmlaaainus Cope. Slenderer than M. parovanus, and the color a light 

 trailslucent green, quite unlike the heavy olivaceous of the latter. Head, 3f ; depth, 

 4^. A. 1, 9. Scales, 9-46-4. Teeth, 4-5. L., 6 inches. One specimen known, from 

 Goose Lake, Oregon. {Cope, Proc. Ac. Nat. Sci. Phila., 1883, 143.) 



■^Leucua olivaceua Cojje. Dusky olive; the belly silvery; no lateral baud; tins 

 dusky ; body fusiform, compressed ; head narrowed to the muzzle, the mouth open- 

 ing obliquely forwards and upwards ; maxillary concealed in the closed mouth, its tip 

 extending a little beyond front of eye. Eye 1^ in snout, 1| in interorbital 8j>ace, 5 in 

 head, middle of front flat, its edges sloping to the superciliary border. Head, 3^ ; 

 depth 4. A. 1, 8. Scales, 13-58-7. Teeth, 5-5, sharp edged. L., 1 foot. Pyramid Lake, 

 Nevada; very abundant. {Lencua olivaceua Cope. Proc. Ac. Nat. Sci. Phila., 1883, 

 145.) 



•^ LeucHS dimidiatua Cope. Light brown above, becoming plumbeous lower, the belly 

 pure silver-white. Eye equal to interorbital width, 3^ in head, a little more than 

 length of muzzle. Mouth oblique, the maxillary reaching front of eye. Ventral a lit- 

 tle behind front of dorsal. Head, 4 ; depth 4*. A. 1, 8. Scales, 14-65-8. Teeth, 5-5. 

 L., 4 inches. Pyramid Lake, Nevada; very abundant. 



{Leucua dimidiatua Cope, Proc. Ac. Nat. Sci. Phila., 1883, 146.) 



■ Siphateles vittatua Cope. Brownish above, belly and sides silvery ; a straight lat- 

 eral baiul of lead-color interrupted at base of caudal by a vertical band of straw- 

 yellow, which has a dark posterior edge. Lateral line very imperfect. Eye, 3 in 

 head, a little less than interorbital width. Mouth oblique, the maxillary not quite 

 reaching front of eye. Ventral tins beneath anterior part of dorsal. Head 4 ; depth, 



