150 

 (i. 1"'. ,\ii:i;rii-'.\sri.\'['i s. 



Mild -Dabbler, or Mumniiclioii,-. 



I'xhIv cylindrical, mow coiupressctl l>cliiml. llciul In'oad 

 JUKI liatt(Mi('(l; its Icng'tli is greater tiian the greatest deptlioi' 

 tlie lisli, and less than one-third its entire length. Caudal 

 (in hroad, nearly straiglit at its termination. Olive above: 

 sides lighter; lower ])ortion (jf operclcs silvery; throat and 

 hiick portion of ahdonien hluish-grey. Tlie bod}- is trans- 

 versely marked v/ith numerous bluis'ii brands, (abont lifteen ) 

 and dotted Avith darker minute points. 



l.^iii_i.ays— D. i:!— 14: F. 18: V. 5: A. 12— Ir!: ('. 1(1. 



/-'. mu1fif(i!«:iafiiH. (luenther. 111, ]>. 324. 



Ilifdraiy/i/ra 'iniiliifa-sv'Kilns, Lesueur. douru. Ac. Nat. So. 

 rhilad. T. ISIT, ]). i:'.i. 



Fiindiil ii!< linillifdsc'Kifus, (_'uv. ^K^- A al. XVIII, }). 200; (Aipe, 

 Proc. Acad. Nat. 8e. Thilad. ISlir,, p. 78. 



AVas formerly very common in the region of l)laclc marsli 

 around the Patapsco Elver. 'V\\q. chemical manufacturies 

 1iavin<>' polluted the waters, many of these fish have died out, 

 and their extermination seems imminent. 



A('.\n. Coll. 



HYDliAKGYliA, Lac-, 



11. MA.r.VIJS. 



Tlie Bull-Minnow, or Striped Killinfili. 



Body elongated, sliglitly convex on the dorsum over the 

 pectorals in tlie female, neai-ly straight in the male. Greatest 

 dei)th of tlie body. Avhich is across tlie pectorals, less than the 

 length of the head; the latter, wliich is ecjual in length to 

 one-fourth of the entire length of the hsh, is compressed 

 above. Female yellowish-green above, ligliter upon the sides, 

 white beneath; several longitudinal, interrupted, bl;u-k bands 

 (sometimes iive, sometimes not more than one or two), extend 

 from the gill-covers to the tail. At base of tail three or more 

 If^ss disiinct tiansvcrse 1»ands. Male with green isli-black 



