黑鰭舌(she)鰨分布在(zai)南(nan)達越(yue)南(nan)北部、北達日本南(nan)部等近海(hai)以及兩廣到浙江等海(hai)區。
黑(hei)鰭舌(she)鰨體(ti)(ti)長(chang)為體(ti)(ti)高(gao)3.4倍,為頭長5.7倍。頭長為吻長3.4倍,為眼徑6.9倍,為上頜長4.1倍。
黑鰭舌鰨體長(chang)舌形(xing),甚側(ce)扁(bian),背緣(yuan)和腹緣(yuan)圓凹,后部(bu)(bu)尖。頭較短(duan)小,前(qian)(qian)(qian)部(bu)(bu)圓。吻短(duan),前(qian)(qian)(qian)端(duan)圓鈍,鉤狀(zhuang)(zhuang)突(tu)中(zhong)等長(chang),尖端(duan)不(bu)伸達(da)(da)上跟(gen)前(qian)(qian)(qian)緣(yuan)的下方(fang)。眼(yan)(yan)(yan)小,兩眼(yan)(yan)(yan)均位(wei)于頭左(zuo)側(ce),相互靠近(jin),上眼(yan)(yan)(yan)前(qian)(qian)(qian)緣(yuan)略前(qian)(qian)(qian)于下眼(yan)(yan)(yan)前(qian)(qian)(qian)緣(yuan)。眼(yan)(yan)(yan)間隔(ge)頗窄,小于眼(yan)(yan)(yan)徑。有眼(yan)(yan)(yan)側(ce)前(qian)(qian)(qian)鼻(bi)孔管狀(zhuang)(zhuang),位(wei)于下眼(yan)(yan)(yan)前(qian)(qian)(qian)方(fang);后鼻(bi)孔圓孔狀(zhuang)(zhuang),位(wei)于下眼(yan)(yan)(yan)前(qian)(qian)(qian)緣(yuan)上方(fang)、眼(yan)(yan)(yan)間隔(ge)前(qian)(qian)(qian)部(bu)(bu)。無(wu)(wu)眼(yan)(yan)(yan)側(ce)前(qian)(qian)(qian)鼻(bi)孔退化,后鼻(bi)孔位(wei)較高(gao),邊緣(yuan)略隆起。口(kou)小,下位(wei),口(kou)裂弧形(xing),口(kou)角(jiao)后端(duan)伸達(da)(da)下跟(gen)中(zhong)部(bu)(bu)下方(fang)。有眼(yan)(yan)(yan)側(ce)兩頜(he)無(wu)(wu)牙;無(wu)(wu)眼(yan)(yan)(yan)側(ce)兩頜(he)具絨毛狀(zhuang)(zhuang)細(xi)牙,窄帶(dai)狀(zhuang)(zhuang)排列(lie)。唇(chun)緣(yuan)無(wu)(wu)穗狀(zhuang)(zhuang)小須。鰓(sai)(sai)孔窄長(chang)。前(qian)(qian)(qian)鰓(sai)(sai)蓋(gai)骨邊緣(yuan)不(bu)游(you)離。鰓(sai)(sai)蓋(gai)膜不(bu)與峽部(bu)(bu)相連。無(wu)(wu)鰓(sai)(sai)耙。肛(gang)門偏于無(wu)(wu)眼(yan)(yan)(yan)側(ce),生殖(zhi)突(tu)起短(duan),緊連于臀鰭第一鰭條。
黑鰭舌鰨有眼側(ce)被(bei)(bei)櫛鱗,無眼側(ce)被(bei)(bei)弱(ruo)櫛鱗。徐尾鰭外(wai),各(ge)鰭均不被(bei)(bei)鱗。有眼側(ce)具(ju)3條側(ce)線(xian),側(ce)線(xian)完全,上、中(zhong)(zhong)側(ce)線(xian)和中(zhong)(zhong)、下側(ce)線(xian)間約各具鱗10行。頭側眼(yan)前(qian)和前(qian)鰓蓋骨均具側線(xian);無(wu)眼(yan)側無(wu)側線(xian)。
黑(hei)鰭舌鰨(ta)背鰭起(qi)點在吻部(bu)前(qian)端上方(fang)。臀(tun)鰭起(qi)點在鰓蓋(gai)后(hou)(hou)(hou)緣的后(hou)(hou)(hou)下方(fang)。背鰭和臀(tun)鰭鰭條均(jun)不分(fen)支,后(hou)(hou)(hou)端均(jun)與尾(wei)鰭相連(lian)。無(wu)(wu)胸鰭,有眼側具腹(fu)鰭,位于腹(fu)部(bu)中線,以膜與臀(tun)鰭相連(lian);無(wu)(wu)眼側無(wu)(wu)腹(fu)鰭。尾(wei)鰭后(hou)(hou)(hou)緣尖(jian)形。
黑鰭舌(she)鰨(ta)棲息(xi)于近海大陸棚泥沙底質海域。以底棲之無脊(ji)椎動物,如(ru)多毛類(lei)及(ji)甲殼類(lei)等為食。
黑(hei)鰭舌(she)鰨為中小型(xing)魚類(lei),通常以底拖網捕獲,一般以加(jia)工制品食(shi)之,略(lve)具經濟價值。