. Annual report of the Board of Regents of the Smithsonian Institution. Smithsonian Institution; Smithsonian Institution. Archives; Discoveries in science. PARENTAL CARE AMONG FRESH-WATER FISHES. 405 The most generally known English name for any species of Hoplo- sterrtmii is Hassar, which, however, it shares with very different species of the family of Silurids—the Doradines. The etymology and origin of this name is unknown. In the great Xew English Dictionary (Murray's) it is supposed to be of South American origin (*' ? native South American name ""), but this is doubtless a mere
. Annual report of the Board of Regents of the Smithsonian Institution. Smithsonian Institution; Smithsonian Institution. Archives; Discoveries in science. PARENTAL CARE AMONG FRESH-WATER FISHES. 405 The most generally known English name for any species of Hoplo- sterrtmii is Hassar, which, however, it shares with very different species of the family of Silurids—the Doradines. The etymology and origin of this name is unknown. In the great Xew English Dictionary (Murray's) it is supposed to be of South American origin (*' ? native South American name ""), but this is doubtless a mere sup- position based on the fact that it is current in a South American country (Demerara). According to John Hancock (1828) it is derived from the "; Another name having some currency m English is one that may be often heard in the British island of Trinidad. In that island the common species is generally known as the Gascadura^ which is a survival from the time of the Spanish dominance in that island. This has been translated as " hatdhead," but it evidently refers to the segmented or articulated appearance produced by the two rows of high and narrow plates which cover the sides, the Spanish word Cascadura meaning " an act of l:»ursting or breaking ; The same fish is also called que que by the negroes of Demerara, in imitation of the noise it makes when taken out of the water, which, it is considered, " much resembles the cry of a rat. The roundhead hassar {HOjylostermtrii litto- role) was supposed by Hancock to remain and bury itself in the mud of the pool which was drving up, and he especially stated that it was '. r \ . , . ,, , Fig. 41.—J[oplostenium pec- not ' known to attempt such excursions as the torale, showing armature flathead hassar resorted to, '' although it is caD- "*" breast. After Bouien- able of living a long time out of its ;' A close relative of the roundhead, however, the cambot
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