FIELD CotrusiAX Mcsni'M ZOCHLCK;Y. \\>L_ III. 



species diners from A", kettfri in the more- 

 position of the ventmis- the Longer caudlal appendage of oaks. 

 the Larger eve. the more uniform ajIaratkHi of females and tie 

 spotted, dorsal ct tne ten,;? . es~ 



Viviparous: ore female 2.40 inches wttfcc 39 young, thfrymng 

 coiled aboet the e^-sack; a slightly larger female contained 47 

 yoorcs:. 



Oar specimens were collected. on May cj, 1901. Tbe jovng 

 are rroba.blv deposited from the middle to tlbe last at. Maj. 

 Jalapa, 



ATHERINID-E. 



R-ce-_t sr^ci-s :: me fr-rsh water cshes of Mexico- haveiesukc 

 discoverv of a larse mrmber of species of this taniiy r Biear 



oh ar- f r^ni in the \"illey of Mexico and in the Lerma Basin. 



s<rnt m sotcies or tms iamn?v is Lcn - ".vn ~~ ' ~. ~~~ -. :--~\ ~ 

 side between th-r RI-: Gran ic and Catacoalcos. Tboee r 

 L-rmm E-ism ind in th- Valley of Mexico belonig; to ost^ _ 



~ HL *_^ r "^E"c" ~' ""'"' A~~~ ~ ~]f ir^.'V' '"" r~ -"- ~ *~ ~ " - -" - ~ - - - - 



i^s in Mexico. 



VEV T" THE GENERA F ATHERIMD.E. 



^. Uri^in ot ~pm:ns d:rssL in ad van o- : :.i- :._.: :: 

 ins silTerr: base :: in^.i nn -r-:"_i :. r ^: :~ ~ ~ ~ -. ~_ :i 



Origin jf ipinocs dorsal behind r:^:- : LT i r.-: :: 

 h slightly irrna:- -tdzes. 3-? in the Ia:-r-i >.--: ': i---/ 

 -r tn^n hei. :. its rajs 22 in nun. >.--. -; - : -~ 



Tn- rCrrcies T tnis i'-n := fs.ll in:: -nr-rr: ^ - '.'---'- '-'. 14"" ' 

 t!y mari-c t: ^^z^r^~~ -,:.-~r_ in~; three distinct genera- It 

 r: m;r-r .oei-ia. t". r-^^ri C. /;r.;.;-. - - - _-:- 



:' '.-;-zrun. It ha= 5. ni;r- -.c.r:.-, -. : . .-.--'.---- 

 ~ ^~-~.^~- ^nmt and very ;bl::u-- m'.^tli. V-rrtebrasr ir-j-EjrrrjS. Ii 

 - th-rn C^r^f^,7tjr -s -.-.i - - - . - - --.-.- 

 /.a-ir-g entire ma.ri - in-- Thi-. .1 --..:-: .--/r 

 j :'. 7'.. z- : - zr-.-z, p,ztz..:-j..ir,;. zir.z.ixtn a.r.d nu^^^ifi^KaiK. s.i 



r of larze viz-: fr-.m. ^-j to 54; vertebiac 36 



r.iri i'r . .p L-'.t'u'itoU wj'ili - : - -.-"' 



