151 



sides anil back: sides crossed 1)\' iiuiueniiis, slate-culoicd, 

 nearly black, trans verse Lands. Lower poi'tion of sides, and 

 abdomen, yellowish-green. Dors;il fin with a black roundish 

 spot, before wliich — in larger H})eeiniens — are three or four 

 broken, dark-colored blotches, The or;inge-colored caudal 

 tin is niargined with Idack, 



Fin-rays:- 1). 14— l^; V, i(i— 18: Y. (i; A. 11—12; C. 

 18—1^(1, 



/■J,soj\r/(f.n{h(.s, Miteh, Lit, i^;- PiiiL Ti'ans, New York, 1. 

 p. 4;)U, pi. 4, i]g. 8. 



Cyprinodon Jiavuhis, Valene, in Ihunb, 01)3. Zind. I, p. 

 1U4J pi. '52, tigs, a, 6 Sc 7. 



H//drai-(/>jr(( ti'lfasclafa, Storer, Journ. Soe. Nat. Hist. 

 Boston, 1, 18:57, ]). 417. 



— /Ixrii/c, Storer. _Aleni. Anier. Ac. Y, }d. 2."(. ligs. ."> c*c ('»: 

 iJaird, Ninth Siuithson. llcport, 1855, p. ;M4. 



H;/d/'(fiy;/r(i mujalis^ {\\\' . Sc Yal. XYIIl, }). 207. 

 Fini<bihis i/i([/(di.\. {ruentlier, Yl. }>. ^22. 



This beautiful and hirgc species inhabits the I'atuxeut ;uid 

 Potomac Iiivers, and perliaps otiiei- parts of the tide-waters (/f 

 the western sJiure, soutli of tlie I'atapsco. As yet, it has not 

 ])*^L'n rejjorted from tiic latter river. 



Acad. Coi.i.. 



XlA'l.—VFAli'Or^ULE. 



rLl{(,H_)P!8iS, Agassiz. 



['. (UTTATUS. 



This tish, shapeil like a young 8a]mun, is ol' sujall size 

 and slender form, tliough the back Is veiy much, elevated. 

 Sides com'pi'essed, gradnally diniinisliing in thicicness from 

 the front backwards, (h'ound color yellow, much darker 

 above the lateral line than below. On the bit. ck sire blackish- 

 l)rowji s[)ots, sometimes disposed in two or tlirce huigitudinal 

 rows, wisliont great regularity. Along tlie juiddle ol' t!ie 

 body is a silv^'ry ridge. A snndl adi])ose lin is situate<l at 



