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Show i A Dramming Kijli. I Atareceut meeting of the Rcrlln I Physiological society Professor Mo-I Mo-I eHus described a peculiar fish Ba- Ilistes aculentus which he had met with lu Mauritius. While on a U- it to the island he obsirvcd a bright I blue colored fish in the shallow wa-I wa-I ters ot the harbor, which, when I caught and held in the hand, emit-j emit-j ted from its interior a most striking noli-e, like that of a drum. A care-! care-! ful examination of tlieaulmal failed to riTvcal any obvious moeincnt4, with theexcrptlon of ou rt ofUio skin, lying just beyond the giltalit, which was in continuous lbration. The portion of tho skin which vibrates vi-brates stretches from the clavicle to tho bronchial arch; it Is provided with four large, bony pMtts and lies over the swim bladder, which' In this fish for the meet tort projects out of the trunk muscles. Relilnd the clavicle is n curiously shaped long bone, which Is attached to the clavicle at one point in such a way ; oe to form a lever with two arms. ; The long arm of this bony lever Is abeddc-d in the ventral trunk muscles mus-cles and is capableof easy movement to and fro. T he short arm slides during du-ring this movement over the rough inner side of the clavicle and gives rl-eto a crackling uolse Thisnole is intensified by the swim bladder, ' which lies In close proximity to the shortarmoftlie Iecrand acts as a resonator. XtwcatUe Clirontcte. . """" t |