530 PROCEEDINGS OF THE ACADEMY OF [Oct., 



Hoplosternum thoracatum (Valenciennes). 



C. Ihomcatus Giinther, I.e., p. 228. 

 Regan, I.e. 



Corydoras aeneus (Gill). 



Hoplosiernum ceneum Gill, I.e., p. 403. 

 Corydorus ceneus Regan, I.e. 



Plecostomus plecostomus (Linnseus). 



1'. (/luicarl Regan, I.e., p. 389. 



Hypostomus robinii (non Valenciennes) Gill, I.e. 



Plecostomus robinii Valenciennes. 



P. rohini Regan, I.e. 



Lasiancistrus guacharote (Valenciennes). 



Ancidrui^ guacharote Gill, I.e., p. 409. 

 A. trinitalis Regan, I.e. 



Ancistrus cirrhosus (Valenciennes). 



Xenochara cirrhosum Regan, I.e. 

 Curimatus argenteus Gill. 



L.C., p. 289. 



Regan, I.e., p. 385, PI. 21, fig. 3. Ravines of Streatham Lodge Estate. 



Odontostilbe pulcher (Gill). 



' Poeeilurichthys pulcher Gill, I.e., p. 419. 

 Chirodon pulcher Regan, I.e., PI. 22, fig. 2. Cumuto. 



Astyanax bimaculatus (Linnseus). 



P. bimaeulatus Fowler, Proc. Acad. Nat. Sci. Phila., 1915, p. 261. San Juan. 



P. brevoorlii Gill, I.e., p. 417. 



Tetrarjonopterus maculatus Regan, I.e., p. 384. Maracas River. 



Four examples from Diego Martin River, near Port-of-Spain. 

 Length 1{} to 2{i inches. 



Astyanax tseniurus (Gill). 



P. tceniurus Gill, I.e., p. 418. 



T. tceniurus Regan, I.e., p. 383, PI. 22, fig. 4. 



T. trinitatis Regan, I.e., p. 384. 



Astyanax guppyi (Regan). 



T. guppyi Regan, I.e., PI. 21, fig. 1. Glenside Estate Stream, at the foot 

 of the northern range of hills. 



Hemigrammus unilineatus (Gill). 



P'feiluriehthys {H.) miHineatus Gill, I.e., p. 420. 



Tetragonopterus {H.) unilineatus Regan, I.e., PI. 22, fig. 5. Cumuto. 



Stevardia altipinnis Gill. 



L.e., p. 425. 



Corynopoma riisei Gill, I.e., p. 426. 



C. riisii Regan, I.e., p. 382, PI. 22, fig. 3. Tacarigna River. 



C. veedoni Gill, I.e., p. 427. 



Nematopoma searlesii Gill, I.e., p. 429. 



Hoplias malabaricus (Block). 



Maerodon ferox Gill, I.e., p. 413. 

 M. Irnhira Regan, I.e. 



