384 DR. GUNTHER ON THE FISHES OF CENTRAL AMERICA. 
DACHNER, who gave a preliminary account of it in ‘Sitzgsber. bayer. Akad. Wiss.’ 1863, 
pp. 220-230, and more detailed descriptions in ‘Abhandl. bayer. Akad. Wiss.’ 1864(1865), 
pp. 1-61. Prof. M. Wagner added, besides, a detailed account of the hydrographical 
peculiarities of this part of Central America (pp. 65-92). The species treated of in 
these Memoirs are the following :— 
1. Pristipoma humile, sp.n. 
2. Dajaus elongatus (K. & St.)=Agonostoma nasutum (Gthr.). 
3. Dajaus monticola (C. & V.). 
4. Acara ceruleopunctata, sp. 0. 
5. Heros altifrons, sp.n. 
6. Heros sieboldii, sp. n. 
7. Eleotris pictus, sp. n. 
. Engraulis macrolepidotus, sp. 0. 
poeyi, sp. 1. 
10. Xiphophorus gillii, K. & St.,= Pecilia, sp. ? 
11. Macrodon brasiliensis, K. & St.,.=M. microlepis (Gthr.). 
12. Saccodon wagneri, sp. n. 
13. Pseudochalceus lineatus, sp. n. 
14. Chalcinopsis striatulus, sp. 0. 
chagrensis, sp. 0. 
16. Chalceus atrocaudatus, sp. n. 
17. Zetragonopterus eneus (Gthr.). 
gronovit (C. & V.?). 
19. Bagrus ()arioides, sp. n.= Arius multiradiatus (Gthr.). 
20. Pimelodus modestus (Gthr.) 
cinerascens (K. & St.)=P. wagneri (Gthr.). 
22. Loricaria uracantha, sp.n. 
23. lima (Kner). 
24. Hypostomus plecostomus (K. & St.)=Plecostomus, sp. 
25. Ancistrus cirrhosus (C. & V.). 
26. Acanthias vulgaris (Risso ?). 
Finally, having received in 1864 the last collections made by Messrs. Godman & Salvin, 
I gave preliminary notices of the new species in the ‘ Proceedings’ of this Society, em- 
bodying the-numerous contributions to our knowledge of the Siluroids and Characinoids 
in the fifth volume of the ‘ Catalogue of Fishes,’ to which were added the Cyprinodontes 
and Scombresocides in the sixth (1865-66). 
§ 5. General List of Central-American Fishes. 
After these introductory remarks on the contributions to the ichthyology of Central 
