電(dian)(dian)(dian)(dian)(dian)鰩,軟骨魚綱(gang)電(dian)(dian)(dian)(dian)(dian)鰩目魚類的(de)(de)統稱。最大的(de)(de)個(ge)體可以(yi)(yi)達到(dao)2米，很少在(zai)(zai)0.3米以(yi)(yi)下(xia)。背(bei)腹(fu)扁平，頭和胸部在(zai)(zai)一起(qi)。尾(wei)部呈粗棒狀(zhuang)，像團扇。電(dian)(dian)(dian)(dian)(dian)鰩棲(qi)居在(zai)(zai)海(hai)底(di)，一對小眼長在(zai)(zai)背(bei)側(ce)面(mian)(mian)前方的(de)(de)中間(jian)。在(zai)(zai)頭胸部的(de)(de)腹(fu)面(mian)(mian)兩側(ce)各有(you)一個(ge)腎臟形蜂窩狀(zhuang)的(de)(de)發電(dian)(dian)(dian)(dian)(dian)器。它們排列成六角柱體，叫“電(dian)(dian)(dian)(dian)(dian)板(ban)”柱。電(dian)(dian)(dian)(dian)(dian)鰩身上共(gong)有(you)2000個(ge)電(dian)(dian)(dian)(dian)(dian)板(ban)柱，有(you)200萬塊“電(dian)(dian)(dian)(dian)(dian)板(ban)”。這些電(dian)(dian)(dian)(dian)(dian)板(ban)之間(jian)充滿(man)膠(jiao)質(zhi)狀(zhuang)的(de)(de)物質(zhi)，可以(yi)(yi)起(qi)絕緣(yuan)作(zuo)用。每個(ge)“電(dian)(dian)(dian)(dian)(dian)板(ban)”的(de)(de)表面(mian)(mian)分布有(you)神(shen)(shen)經(jing)末梢，一面(mian)(mian)為負電(dian)(dian)(dian)(dian)(dian)極，另一面(mian)(mian)則為正電(dian)(dian)(dian)(dian)(dian)極。電(dian)(dian)(dian)(dian)(dian)流的(de)(de)方向(xiang)是從(cong)正極流到(dao)負極，也就(jiu)是從(cong)電(dian)(dian)(dian)(dian)(dian)鰩的(de)(de)背(bei)面(mian)(mian)流到(dao)腹(fu)面(mian)(mian)。在(zai)(zai)神(shen)(shen)經(jing)脈沖的(de)(de)作(zuo)用下(xia)，這兩個(ge)放電(dian)(dian)(dian)(dian)(dian)器就(jiu)能(neng)把神(shen)(shen)經(jing)能(neng)變(bian)成為電(dian)(dian)(dian)(dian)(dian)能(neng)，放出電(dian)(dian)(dian)(dian)(dian)來(lai)。亦稱torpedofish、numbfish或crampfish。共(gong)有(you)3科10屬38種(zhong)，中國產2科5屬8種(zhong)，常見的(de)(de)如黑斑雙鰭(qi)電(dian)(dian)(dian)(dian)(dian)鰩（Narcine maculata、舌形雙鰭(qi)電(dian)(dian)(dian)(dian)(dian)鰩（N.lingula）、日本單(dan)鰭(qi)電(dian)(dian)(dian)(dian)(dian)鰩(Narka japonica)。
雙(shuang)鰭電鰩科：分布于太平洋、印度(du)洋和大西洋西部各沿(yan)岸海區(qu)；中國產3種，均(jun)只見于南海；
單(dan)(dan)鰭(qi)電鰩科：分布(bu)于(yu)印(yin)度(du)-西太平洋。中(zhong)(zhong)國有2屬2種：①單(dan)(dan)鰭(qi)電鰩屬，只日(ri)(ri)本(ben)單(dan)(dan)鰭(qi)電鰩，分布(bu)于(yu)中(zhong)(zhong)國沿海(hai)，朝鮮和日(ri)(ri)本(ben)南(nan)(nan)部沿海(hai)；②堅(jian)皮(pi)單(dan)(dan)鰭(qi)電鰩屬，只堅(jian)皮(pi)單(dan)(dan)鰭(qi)電鰩，分布(bu)于(yu)南(nan)(nan)海(hai)、東(dong)海(hai)南(nan)(nan)部及日(ri)(ri)本(ben)南(nan)(nan)部；
無鰭(qi)電鰩科：只1屬1種，分布于(yu)馬來半島、印度支那南(nan)部沿(yan)岸。
眼(yan)小(xiao)而突出；噴水孔邊(bian)緣隆起；前鼻(bi)瓣寬大，伸達(da)下唇；皮膚(fu)柔軟(ruan)。背鰭一(yi)個。頭側與胸鰭間有大型發(fa)(fa)電(dian)器(qi)。體盤亞圓形。腹鰭外角(jiao)不(bu)突出，后緣平直。尾(wei)具側褶(zhe)。背部赤褐色，具少數不(bu)規則暗斑。鰓孔5個，狹小(xiao)，直行(xing)排(pai)列。齒細小(xiao)而多。頭側與胸鰭間具1對發(fa)(fa)達(da)的卵(luan)圓形發(fa)(fa)電(dian)器(qi)官(guan)，由肌肉組(zu)織(zhi)變異而成(cheng)，發(fa)(fa)電(dian)時的電(dian)壓一(yi)般在75-80v，最高可(ke)(ke)達(da)200v。體表柔軟(ruan)。尾(wei)鰭發(fa)(fa)達(da)，體長可(ke)(ke)達(da)1.5m，體重可(ke)(ke)達(da)6.1kg。口小(xiao)或中大，唇褶(zhe)發(fa)(fa)達(da)。眼(yan)小(xiao)。
生(sheng)境：近海底棲(qi)魚類。
分布：沿海，但很少見到。但在(zai)黃(huang)海、渤海中常見。
電(dian)(dian)鰩長(chang)約(yue)750px～2m，體(ti)柔軟，皮(pi)膚光滑，頭與(yu)胸鰭形成圓或近(jin)于(yu)圓形的體(ti)盤(pan)。發(fa)電(dian)(dian)器一對(dui)，由變態的肌肉組織構成，位于(yu)體(ti)盤(pan)內，頭部兩側能(neng)發(fa)電(dian)(dian)，用于(yu)防(fang)御和捕獲獵(lie)物，大型(xing)電(dian)(dian)鰩發(fa)出(chu)的電(dian)(dian)流足以(yi)擊倒成人。
體(ti)盤(pan) 橢圓(yuan)(yuan)形(xing)，寬(kuan)稍(shao)小(xiao)于(yu)長(chang)；尾寬(kuan)短(duan)(duan)，稍(shao)短(duan)(duan)于(yu)頭和(he)軀(qu)干(gan)之(zhi)長(chang)，比體(ti)盤(pan)為(wei)長(chang)，側(ce)褶很低(di)，幾消失。吻(wen)頗長(chang)，前(qian)端廣圓(yuan)(yuan)；吻(wen)軟(ruan)骨(gu)(gu)(gu)柔軟(ruan)，細(xi)長(chang)，正中一(yi)(yi)條。眶(kuang)前(qian)軟(ruan)骨(gu)(gu)(gu)很發達，側(ce)位，分(fen)作多枝，里(li)側(ce)以韌帶連于(yu)吻(wen)軟(ruan)骨(gu)(gu)(gu)基側(ce)。眼微小(xiao)，埋(mai)于(yu)皮下，位于(yu)噴水(shui)孔里(li)側(ce)上角。噴水(shui)孔頗大(da)，橢圓(yuan)(yuan)形(xing)。邊緣(yuan)光滑，平(ping)坦(tan)或(huo)微突起。鼻孔小(xiao)；鼻口(kou)(kou)(kou)溝(gou)很短(duan)(duan)；前(qian)鼻瓣連合為(wei)一(yi)(yi)口(kou)(kou)(kou)蓋；后鼻瓣短(duan)(duan)小(xiao)，具(ju)一(yi)(yi)半環狀薄膜。口(kou)(kou)(kou)小(xiao)，平(ping)橫，口(kou)(kou)(kou)前(qian)具(ju)一(yi)(yi)深溝(gou)，能突出；口(kou)(kou)(kou)寬(kuan)約(yue)等于(yu)口(kou)(kou)(kou)前(qian)吻(wen)長(chang)2/5；唇軟(ruan)厚而(er)(er)皺；上唇分(fen)兩側(ce)和(he)中央(yang)三部；下唇寬(kuan)而(er)(er)連續。牙(ya)細(xi)小(xiao)而(er)(er)多，平(ping)扁，齒(chi)頭低(di)平(ping)后突，上下頜各14~5縱行(xing)；齒(chi)面不外露。鰓孔很小(xiao)，直行(xing)排列。
胸部(bu)前(qian)延，到達(da)鼻囊(nang)前(qian)緣的(de)(de)水(shui)平線，前(qian)端寬(kuan)廣地被軟(ruan)吻軟(ruan)骨(gu)及(ji)眶前(qian)軟(ruan)骨(gu)隔開；前(qian)后(hou)(hou)(hou)緣連續，后(hou)(hou)(hou)部(bu)狹直，無里緣和后(hou)(hou)(hou)角(jiao)。腹(fu)鰭(qi)(qi)(qi)前(qian)角(jiao)圓鈍(dun)(dun)，顯著突出，后(hou)(hou)(hou)緣深凹，里緣很短可消失(shi)，后(hou)(hou)(hou)角(jiao)尖小(xiao)。背(bei)鰭(qi)(qi)(qi)一個，頗(po)小(xiao)，起點在(zai)腹(fu)鰭(qi)(qi)(qi)基(ji)(ji)底之(zhi)后(hou)(hou)(hou)，前(qian)、后(hou)(hou)(hou)、里緣分明，前(qian)后(hou)(hou)(hou)角(jiao)圓鈍(dun)(dun)，與(yu)尾基(ji)(ji)的(de)(de)距離稍短于背(bei)鰭(qi)(qi)(qi)基(ji)(ji)底長。尾鰭(qi)(qi)(qi)頗(po)寬(kuan)大，上葉比下葉大，后(hou)(hou)(hou)緣與(yu)下緣斜圓形。背(bei)面灰褐色(se)或赤褐色(se)，具不規則暗色(se)斑(ban)塊(kuai)。尾側白色(se)。體側在(zai)胸、腹(fu)鰭(qi)(qi)(qi)之(zhi)間(jian)白色(se)；腹(fu)面白色(se)，體盤與(yu)腹(fu)鰭(qi)(qi)(qi)邊(bian)緣白色(se)；有(you)時胸、腹(fu)外側和尾之(zhi)后(hou)(hou)(hou)部(bu)褐色(se)。
電鰩(yao)(yao)科(Torpedinidae)、單鰭(qi)電鰩(yao)(yao)科(Narkidae)、無鰭(qi)電鰩(yao)(yao)科(Temeridae)魚類的(de)統稱(cheng)，以(yi)能發電傷(shang)人而(er)聞名。見于世(shi)界熱(re)、溫帶水域。種類多，多棲於(wu)淺水，但深海電鰩(yao)(yao)屬(Benthobatis)等可生活(huo)於(wu)1,000公尺(3,300呎)以(yi)下的(de)深水。活(huo)動(dong)緩(huan)慢，底(di)棲，以(yi)魚類及(ji)無脊(ji)椎動(dong)物為食。如(ru)不被(bei)觸及(ji)則對人無害，經濟(ji)價值微不足(zu)道。
長約(yue)30公分～2公尺(1～6呎)。體柔軟，皮膚光(guang)滑，頭(tou)與胸鰭形成圓或近于圓形的(de)體盤(pan)(pan)。發(fa)電(dian)(dian)器一對，由變(bian)態(tai)的(de)肌肉組織構成，位(wei)於體盤(pan)(pan)內，頭(tou)部兩(liang)側，能發(fa)電(dian)(dian)，用于防御和捕獲獵物(wu)，大型電(dian)(dian)鰩(yao)發(fa)出的(de)電(dian)(dian)流足以(yi)擊倒(dao)成人。古(gu)希臘人及(ji)羅馬人用黑(hei)電(dian)(dian)鰩(yao)(Torpedo nobiliana)的(de)電(dian)(dian)擊治療痛風、頭(tou)痛等疾病。
軟(ruan)骨魚(yu)綱電鰩目是板(ban)腮類魚(yu)的一(yi)個目，此目的魚(yu)腮裂和口(kou)都在(zai)腹位，有(you)五(wu)個腮裂，身體(ti)平扁卵(luan)圓形，吻不突(tu)出，臀鰭(qi)消失(shi)，尾鰭(qi)很小(xiao)，胸(xiong)鰭(qi)寬大，胸(xiong)鰭(qi)前緣和體(ti)側(ce)(ce)相(xiang)連(lian)接(jie)。在(zai)胸(xiong)鰭(qi)和頭(tou)之間的身體(ti)每側(ce)(ce)有(you)一(yi)個大的發電器官(guan)，能發電，以電擊(ji)敵人(ren)或獵(lie)物(wu)，卵(luan)胎生(sheng)，分布(bu)在(zai)熱(re)帶(dai)(dai)和亞熱(re)帶(dai)(dai)近海，半埋在(zai)泥沙中等待獵(lie)物(wu)，一(yi)般體(ti)形較小(xiao)，沒有(you)食用價值。根據(ju)背鰭(qi)的多少，分為三科：
電(dian)(dian)(dian)(dian)鰩(yao)(yao)(yao)最大的(de)(de)(de)個體可以達到2米,很(hen)少在(zai)0.3米以下(xia)。背(bei)(bei)腹(fu)扁平,頭和胸部(bu)在(zai)一(yi)起(qi)。尾部(bu)呈粗(cu)棒狀(zhuang),像團(tuan)扇。電(dian)(dian)(dian)(dian)鰩(yao)(yao)(yao)棲居在(zai)海底(di),一(yi)對小眼(yan)長在(zai)背(bei)(bei)側(ce)面(mian)(mian)前方(fang)的(de)(de)(de)中間。在(zai)頭胸部(bu)的(de)(de)(de)腹(fu)面(mian)(mian)兩(liang)側(ce)各有一(yi)個腎臟形蜂窩狀(zhuang)的(de)(de)(de)發(fa)電(dian)(dian)(dian)(dian)器。它們排列成六角(jiao)柱體，叫“電(dian)(dian)(dian)(dian)板(ban)(ban)”柱。電(dian)(dian)(dian)(dian)鰩(yao)(yao)(yao)身(shen)上共有2000個電(dian)(dian)(dian)(dian)板(ban)(ban)柱，有200萬塊“電(dian)(dian)(dian)(dian)板(ban)(ban)”。這(zhe)些(xie)電(dian)(dian)(dian)(dian)板(ban)(ban)之(zhi)間充滿(man)膠質(zhi)狀(zhuang)的(de)(de)(de)物(wu)質(zhi)，可以起(qi)絕緣作用(yong)。每(mei)個“電(dian)(dian)(dian)(dian)板(ban)(ban)”的(de)(de)(de)表面(mian)(mian)分(fen)布(bu)有神經(jing)末梢，一(yi)面(mian)(mian)為負(fu)電(dian)(dian)(dian)(dian)極(ji)，另(ling)一(yi)面(mian)(mian)則為正電(dian)(dian)(dian)(dian)極(ji)。電(dian)(dian)(dian)(dian)流(liu)的(de)(de)(de)方(fang)向是(shi)(shi)從(cong)(cong)正極(ji)流(liu)到負(fu)極(ji)，也(ye)就(jiu)是(shi)(shi)從(cong)(cong)電(dian)(dian)(dian)(dian)鰩(yao)(yao)(yao)的(de)(de)(de)背(bei)(bei)面(mian)(mian)流(liu)到腹(fu)面(mian)(mian)。在(zai)神經(jing)脈沖(chong)的(de)(de)(de)作用(yong)下(xia)，這(zhe)兩(liang)個放電(dian)(dian)(dian)(dian)器就(jiu)能(neng)(neng)把神經(jing)能(neng)(neng)變(bian)(bian)成為電(dian)(dian)(dian)(dian)能(neng)(neng)，放出電(dian)(dian)(dian)(dian)來(lai)。單(dan)個“電(dian)(dian)(dian)(dian)板(ban)(ban)”產(chan)生(sheng)的(de)(de)(de)電(dian)(dian)(dian)(dian)壓(ya)很(hen)微(wei)弱，可是(shi)(shi)，由于數量很(hen)多，就(jiu)能(neng)(neng)發(fa)出很(hen)強的(de)(de)(de)電(dian)(dian)(dian)(dian)壓(ya)來(lai)。電(dian)(dian)(dian)(dian)鰩(yao)(yao)(yao)的(de)(de)(de)每(mei)一(yi)個電(dian)(dian)(dian)(dian)板(ban)(ban)，只是(shi)(shi)肌(ji)(ji)纖維的(de)(de)(de)變(bian)(bian)態。發(fa)電(dian)(dian)(dian)(dian)器官是(shi)(shi)從(cong)(cong)某些(xie)鰓肌(ji)(ji)演變(bian)(bian)而來(lai)的(de)(de)(de)。在(zai)演變(bian)(bian)發(fa)生(sheng)過程中解(jie)除(chu)了腮肌(ji)(ji)原來(lai)的(de)(de)(de)職務，而承擔了新的(de)(de)(de)作用(yong)——發(fa)電(dian)(dian)(dian)(dian)。
自我保護
發(fa)電(dian)器(qi)最主要的樞紐，是器(qi)官的神經部分，電(dian)鰩能隨意放(fang)電(dian)，放(fang)電(dian)時間和強度，它(ta)完全能夠自己(ji)掌(zhang)握(wo)。電(dian)鰩可以發(fa)電(dian),并靠發(fa)出的電(dian)流擊(ji)斃(bi)水中的小(xiao)魚、蝦及其他的小(xiao)動物,是一種捕食和打擊(ji)敵害的手段。
世界上有好多種電(dian)(dian)(dian)鰩(yao),其(qi)發(fa)電(dian)(dian)(dian)能力各不相同。非洲電(dian)(dian)(dian)鰩(yao)一(yi)次(ci)發(fa)電(dian)(dian)(dian)的電(dian)(dian)(dian)壓在(zai)220伏(fu)左右,中等大(da)小(xiao)的電(dian)(dian)(dian)鰩(yao)一(yi)次(ci)發(fa)電(dian)(dian)(dian)的電(dian)(dian)(dian)壓在(zai)70～80伏(fu),像較小(xiao)的南(nan)美電(dian)(dian)(dian)鰩(yao)一(yi)次(ci)只能發(fa)出37伏(fu)電(dian)(dian)(dian)壓。由于電(dian)(dian)(dian)鰩(yao)會發(fa)電(dian)(dian)(dian)，人們(men)叫它做活的發(fa)電(dian)(dian)(dian)機、活電(dian)(dian)(dian)池(chi)、電(dian)(dian)(dian)魚等。
電(dian)鰩可以放(fang)出50安培的(de)電(dian)流(liu)，電(dian)壓達60～80伏(fu)，有海中“活電(dian)站”之稱。電(dian)鰩每秒(miao)鐘能(neng)放(fang)電(dian)50次(ci)，但連(lian)續放(fang)電(dian)后，電(dian)流(liu)逐漸(jian)減弱，10～15秒(miao)鐘后完(wan)全消失，休息一會后又能(neng)重(zhong)新恢復放(fang)電(dian)能(neng)力。
電(dian)鰩(yao)的放電(dian)特性(xing)啟發人(ren)們發明和創(chuang)造了能貯存電(dian)的電(dian)池(chi)。人(ren)們日常生(sheng)活中所用的干電(dian)池(chi)，在正(zheng)負極間的糊狀(zhuang)填充物，就是受電(dian)鰩(yao)發電(dian)器里的膠狀(zhuang)物啟發而(er)改進(jin)的。
早(zao)在(zai)古希臘和(he)(he)羅馬時代，醫生們常常把病(bing)人放到(dao)電(dian)鰩(yao)身上(shang)，或者讓病(bing)人去碰一下正在(zai)池中(zhong)放電(dian)的電(dian)鰩(yao)，利用電(dian)鰩(yao)放電(dian)來治療風濕癥和(he)(he)癲(dian)狂癥等(deng)病(bing)。就是到(dao)了今(jin)天，在(zai)法國和(he)(he)意大利沿海，還可(ke)能看(kan)到(dao)一些患(huan)有(you)風濕病(bing)的老年人，正在(zai)退潮(chao)后的海灘上(shang)尋找電(dian)鰩(yao)，當做自(zi)己的“醫生”呢。
放電原因
1989年，在法國(guo)科(ke)學城(cheng)舉辦了(le)一(yi)次(ci)饒(rao)有(you)趣(qu)味的“時鐘”回顧(gu)展覽，一(yi)座(zuo)用帶(dai)電(dian)(dian)(dian)(dian)魚(yu)放出的電(dian)(dian)(dian)(dian)來驅動的時鐘，引起了(le)人們極大的興趣(qu)。這種帶(dai)電(dian)(dian)(dian)(dian)魚(yu)放電(dian)(dian)(dian)(dian)十分有(you)規律，電(dian)(dian)(dian)(dian)流的方向一(yi)分鐘變換一(yi)次(ci)，因而被人稱為“天然(ran)報時鐘”。常見的帶(dai)電(dian)(dian)(dian)(dian)魚(yu)有(you)電(dian)(dian)(dian)(dian)鰻、電(dian)(dian)(dian)(dian)鰩(yao)、電(dian)(dian)(dian)(dian)鯰等。其中電(dian)(dian)(dian)(dian)鰩(yao)電(dian)(dian)(dian)(dian)力第二強(qiang)了(le)。 它(ta)放電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)壓可達300～500伏，足以把附近的魚(yu)電(dian)(dian)(dian)(dian)死，人和(he)牲(sheng)畜碰上，全(quan)身也會麻痹。據計算，1萬條電(dian)(dian)(dian)(dian)鰩(yao)的電(dian)(dian)(dian)(dian)能聚集在一(yi)起，足夠使1列電(dian)(dian)(dian)(dian)力機車運行幾分鐘。
放電原理
原來(lai)，電(dian)(dian)(dian)(dian)(dian)鰩(yao)是活的(de)(de)“發(fa)(fa)電(dian)(dian)(dian)(dian)(dian)機”。它尾部(bu)兩側的(de)(de)肌肉，是由有規則地排列著的(de)(de)6000～10000枚(mei)肌肉薄(bo)片(pian)組(zu)成(cheng)，薄(bo)片(pian)之間(jian)有結(jie)締組(zu)織相隔，并有許多神經(jing)直(zhi)(zhi)通中(zhong)(zhong)樞(shu)神經(jing)系統。每枚(mei)肌肉薄(bo)片(pian)像一(yi)個(ge)小電(dian)(dian)(dian)(dian)(dian)池，只(zhi)能產生150毫(hao)伏的(de)(de)電(dian)(dian)(dian)(dian)(dian)壓，但近萬個(ge)“小電(dian)(dian)(dian)(dian)(dian)池”串聯起(qi)來(lai)，就(jiu)可(ke)以產生很高的(de)(de)電(dian)(dian)(dian)(dian)(dian)壓。電(dian)(dian)(dian)(dian)(dian)鰩(yao)尾部(bu)發(fa)(fa)出的(de)(de)電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)，流(liu)(liu)向頭部(bu)的(de)(de)感受器，因(yin)此在(zai)(zai)它身體周(zhou)圍(wei)形成(cheng)一(yi)個(ge)弱電(dian)(dian)(dian)(dian)(dian)場。電(dian)(dian)(dian)(dian)(dian)鰻(man)中(zhong)(zhong)樞(shu)神經(jing)系統中(zhong)(zhong)有專門的(de)(de)細胞來(lai)監視電(dian)(dian)(dian)(dian)(dian)感受器的(de)(de)活動，并能根據監視分析的(de)(de)結(jie)果指揮電(dian)(dian)(dian)(dian)(dian)鰻(man)的(de)(de)行為(wei)，決定采取(qu)捕(bu)食行為(wei)或(huo)避讓行為(wei)或(huo)其它行為(wei)。有人做過這(zhe)么一(yi)個(ge)實驗：在(zai)(zai)水池中(zhong)(zhong)放(fang)(fang)置兩根垂(chui)直(zhi)(zhi)的(de)(de)導(dao)(dao)線(xian)，放(fang)(fang)入(ru)電(dian)(dian)(dian)(dian)(dian)鰩(yao)，并將水池放(fang)(fang)在(zai)(zai)黑暗的(de)(de)環境里(li)，結(jie)果發(fa)(fa)現電(dian)(dian)(dian)(dian)(dian)鰻(man)總在(zai)(zai)導(dao)(dao)線(xian)中(zhong)(zhong)間(jian)穿梭，一(yi)點兒也不會碰導(dao)(dao)線(xian)；當導(dao)(dao)線(xian)通電(dian)(dian)(dian)(dian)(dian)后，電(dian)(dian)(dian)(dian)(dian)鰩(yao)一(yi)下子就(jiu)往后跑了。這(zhe)說明電(dian)(dian)(dian)(dian)(dian)鰻(man)是靠“電(dian)(dian)(dian)(dian)(dian)感”來(lai)判斷(duan)周(zhou)圍(wei)環境的(de)(de)。
電(dian)鰩放完體內蓄存的(de)電(dian)能(neng)后，要經過(guo)一段時間的(de)積(ji)聚(ju)，才能(neng)繼續放電(dian)。
世界上已知的(de)發電魚類達數(shu)十種呢，其(qi)他會(hui)放電的(de)魚類還有(you)電鯰、電鰻(man)等。
吸(xi)力超(chao)強電(dian)鰩這(zhe)個新品種(zhong)(zhong)是已知最大的(de)(de)(de)電(dian)鰩家族單(dan)鰭電(dian)鰩科(ke)(ke)的(de)(de)(de)成員，它之所以能(neng)進入年(nian)度(du)十(shi)大發(fa)現(xian)新物(wu)種(zhong)(zhong)排名(ming)榜(bang)中，是因為它的(de)(de)(de)屬名(ming)非常與眾(zhong)不同(tong)且很有趣。科(ke)(ke)學(xue)家拍攝的(de)(de)(de)電(dian)鰩覓食錄像中顯(xian)示(shi)，這(zhe)種(zhong)(zhong)魚可(ke)在水中像吸(xi)塵(chen)(chen)器(qi)一樣(yang)捕食獵物(wu)，或(huo)許能(neng)跟用來吸(xi)取地(di)毯、家具和其他容易落灰(hui)塵(chen)(chen)的(de)(de)(de)現(xian)代家居用品表(biao)面的(de)(de)(de)雜物(wu)的(de)(de)(de)電(dian)動吸(xi)塵(chen)(chen)器(qi)相媲美(mei)。因此科(ke)(ke)學(xue)家按照(zhao)伊萊克斯(electrolux)真空吸(xi)塵(chen)(chen)器(qi)的(de)(de)(de)名(ming)字給它命名(ming)。
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