黑鰭(qi)舌(she)鰨(ta)分布在(zai)南達越南北部(bu)、北達日本南部(bu)等近海以(yi)及(ji)兩廣到浙江等海區(qu)。
黑鰭舌鰨(ta)體長(chang)為體高(gao)3.4倍,為(wei)頭長(chang)5.7倍。頭(tou)長為吻長3.4倍,為(wei)眼徑(jing)6.9倍,為上頜長(chang)4.1倍(bei)。
黑鰭(qi)舌(she)鰨體長(chang)舌(she)形(xing),甚(shen)側(ce)(ce)扁,背(bei)緣(yuan)和腹緣(yuan)圓(yuan)凹,后部(bu)(bu)尖。頭較短小(xiao)(xiao)(xiao),前(qian)(qian)(qian)部(bu)(bu)圓(yuan)。吻短,前(qian)(qian)(qian)端(duan)圓(yuan)鈍(dun),鉤狀(zhuang)(zhuang)(zhuang)(zhuang)突中(zhong)等長(chang),尖端(duan)不伸達上(shang)跟前(qian)(qian)(qian)緣(yuan)的下(xia)方(fang)。眼(yan)(yan)小(xiao)(xiao)(xiao),兩眼(yan)(yan)均位于(yu)(yu)頭左側(ce)(ce),相(xiang)互靠近,上(shang)眼(yan)(yan)前(qian)(qian)(qian)緣(yuan)略前(qian)(qian)(qian)于(yu)(yu)下(xia)眼(yan)(yan)前(qian)(qian)(qian)緣(yuan)。眼(yan)(yan)間隔(ge)頗窄,小(xiao)(xiao)(xiao)于(yu)(yu)眼(yan)(yan)徑。有(you)眼(yan)(yan)側(ce)(ce)前(qian)(qian)(qian)鼻(bi)孔(kong)管狀(zhuang)(zhuang)(zhuang)(zhuang),位于(yu)(yu)下(xia)眼(yan)(yan)前(qian)(qian)(qian)方(fang);后鼻(bi)孔(kong)圓(yuan)孔(kong)狀(zhuang)(zhuang)(zhuang)(zhuang),位于(yu)(yu)下(xia)眼(yan)(yan)前(qian)(qian)(qian)緣(yuan)上(shang)方(fang)、眼(yan)(yan)間隔(ge)前(qian)(qian)(qian)部(bu)(bu)。無(wu)眼(yan)(yan)側(ce)(ce)前(qian)(qian)(qian)鼻(bi)孔(kong)退化,后鼻(bi)孔(kong)位較高(gao),邊(bian)緣(yuan)略隆起。口(kou)小(xiao)(xiao)(xiao),下(xia)位,口(kou)裂弧形(xing),口(kou)角后端(duan)伸達下(xia)跟中(zhong)部(bu)(bu)下(xia)方(fang)。有(you)眼(yan)(yan)側(ce)(ce)兩頜無(wu)牙;無(wu)眼(yan)(yan)側(ce)(ce)兩頜具絨毛狀(zhuang)(zhuang)(zhuang)(zhuang)細牙,窄帶狀(zhuang)(zhuang)(zhuang)(zhuang)排列。唇緣(yuan)無(wu)穗狀(zhuang)(zhuang)(zhuang)(zhuang)小(xiao)(xiao)(xiao)須(xu)。鰓孔(kong)窄長(chang)。前(qian)(qian)(qian)鰓蓋骨邊(bian)緣(yuan)不游離。鰓蓋膜不與(yu)峽部(bu)(bu)相(xiang)連。無(wu)鰓耙。肛門偏于(yu)(yu)無(wu)眼(yan)(yan)側(ce)(ce),生殖(zhi)突起短,緊(jin)連于(yu)(yu)臀(tun)鰭(qi)第一(yi)鰭(qi)條。
黑鰭舌鰨有(you)眼(yan)側被櫛鱗,無眼(yan)側被弱櫛鱗。徐尾鰭外(wai),各鰭均不被鱗。有(you)眼(yan)側具3條側線(xian),側線(xian)完全(quan),上、中側線(xian)和中、下側線(xian)間約各具鱗10行。頭側眼前和(he)前鰓蓋骨(gu)均具側線;無(wu)眼側無(wu)側線。
黑鰭(qi)(qi)(qi)舌鰨(ta)背鰭(qi)(qi)(qi)起(qi)點(dian)在吻部前端上方(fang)。臀鰭(qi)(qi)(qi)起(qi)點(dian)在鰓蓋后緣的后下方(fang)。背鰭(qi)(qi)(qi)和臀鰭(qi)(qi)(qi)鰭(qi)(qi)(qi)條(tiao)均不分支(zhi),后端均與(yu)尾(wei)(wei)鰭(qi)(qi)(qi)相(xiang)連。無(wu)胸鰭(qi)(qi)(qi),有眼側具腹鰭(qi)(qi)(qi),位于腹部中(zhong)線,以(yi)膜(mo)與(yu)臀鰭(qi)(qi)(qi)相(xiang)連;無(wu)眼側無(wu)腹鰭(qi)(qi)(qi)。尾(wei)(wei)鰭(qi)(qi)(qi)后緣尖(jian)形。
黑鰭舌鰨(ta)棲息于近(jin)海(hai)大(da)陸棚泥沙底質海(hai)域(yu)。以底棲之無(wu)脊椎動物(wu),如多毛類及(ji)甲殼類等為食(shi)。
黑鰭(qi)舌鰨(ta)為中小型魚類,通常以底拖網捕(bu)獲,一般(ban)以加工制品食(shi)之,略具經濟價值。