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PLATE VIII. 
Fundulus heteroclitus Linn.; Gill. Oviduct extended down upon the anal fin. 
Jenynsia lineata Jen.; Gth. Male showing the stays from the vertebra to the base of 
the anal, the air bladder, testes, ureters, and the tube down upon the anal. 
Jenynsia lineata. A young male, with half grown anal tube, resembling the female of 
Fundulus heteroclitus. 
Xiphophorus Helleri Heckel. Male with anal stays exposed. 
Gambusia Holbrookii (Ag.) Grd.; Blkr. 
Gambusia punctata Poey. 
Gambusia puncticulata Poey. 
Heterandria formosa Ag. 
Pseudoxiphophorus bimaculatus Heck. ; Blkr. 
Pecilia vittata Guich. 
Pecilia vivipara Bl. Schn. 
Mollienisia latipinna Les. 
Girardinus metallicus Poey. 
Glaridodon uninotatus Poey ; Garm. 
Glaridodon januarius Hens. ; Garm. 
Cnesterodon decemmaculatus Jen.; Garm. 
Onesterodon scalpridens Garm. 
