Evermaiin and Kendall — Fish from Central Ecuador 



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fissidenf< liavc Imt little left l>y whidi to distinguiyli tlu'in aiul 

 tlu' yainc may 1k' said of xnhido, taczanowskii, vaillaidl ami 

 prenadilla . 



Since thc> male examples of our specimens agree with all that 

 has l)een said of Arycs prenadilUi, and tlie females equally as 

 well with Ciidopiutii riichipinti, we are forced to unite these two 

 ft)rms in the genus and species Cf/clopium cyrlopiiw, which will 

 ineludt' .4. eif/cnmaiini and perhaps tvhi/mperi of Uegaii. There 

 is nothing in the laws of nature, so far as we know, to prevent 

 the existence of a number of genera and species of this group of 

 tislies ; l)ut the indications derivable from the literature and 

 material at hand are tliat the number may be still further 

 reduced as a result of more extended investigations, and there 

 may l)e but t)ne genus, Astrohlepiix, to include all the nominal 

 species. 



The following description of Cyclopium ri/rlnpHin is based on 

 two individuals, female and male, each about 3.12 inches in 

 length, in the collection sent us by Dr. Da^^s : 



Figs. 1 and la. -Cyclopium cydopum, female. 



Female.— Yiead 4.1 8 in length to base of caudal ; D. 7 ; A. 7 ; P. 10 ; V. 5 ; 

 C. 18. Body rather robust, somewhat depressed anteriorly and compressed 

 posteriorly; a thick fleshy fold or ridge (after months in alcohol), some- 

 what arched, extending from a short distance back of dorsal to base of 

 upper ray of caudal, with a small rough, nearly concealed, spine 

 posteriorly ; skin rather loose and wrinkled, full of fine mucous pores 

 posteriorly to dorsal, coarser in front; first dorsal, outer pectoral and 



