432 



PROCEEDINGS OF THE NATIONAL MUSEUM. 



VOL. XXXII. 



6. FUNDULUS Laeepede.« 

 6. FUNDULUS BALZANII (Perugia). 



IlaVdnf. Villa Mariii (Matto Grosso), Rio Paraguay. 



7. FUNDULUS PARAGUAYENSIS h Eigenmann and Kennedy. 



Habitat. — Arroyo Trementina, Paraguay. (See tig. 8.) 





I'iu. O.— i L.>ijl lA.- l.iK.u.L AYENsLS, TYPE. 



7. RIVULUS Poey. 

 8. RIVULUS PUNCTATUS Boulenger. 



Habitat. — Colonia Risso, near the Rio Apa. 



Fig. 9. — Cynolebias porosus, type, o, head from above; h. head from beneath. 

 8. CYNOLEBIAS Steindachner. 

 Q/noZeftv'a.s Steindachner, Ichthyol. Beitr., p. 124, pi. x, fig. 3. {porosus.) 

 Type of g 671118. — Oyyiolebias loorosiis Steindachner. (See tig. 9.) 



« I am not certain that these species belong to the genus Fundulus. 



b It is possible that this species may prove to be a synonym of balzanii. They 

 differ as follows: 

 *D., 9; A., 14; scales, 4-34-5; depth, 4; head, 3; eye, 3 in head; caudal plane; 



dorsal and anal with three series of spots balzanii 



*D. 10; A. 12; lat. 1., 34; depth, 4; head, 3i; eye, 3J in head; caudal with 



numerous crossbars; dorsal and anal, with four dark longitudinal bands. 



paraguayensis 



