西(xi)寶舌鰨分布(bu)于(yu)中國、印(yin)度尼(ni)西(xi)亞,中國產于(yu)南海(hai)、臺灣海(hai)峽。
西寶(bao)舌鰨(ta)背鰭108,臀鰭84,腹鰭(qi)41尾(wei)鰭10。側線鱗5+55。
西寶舌(she)鰨(ta)體長(chang)為體高3.6倍(bei),為頭長5.0倍。頭長為吻(wen)長2.9倍,為眼徑6.9倍。體長舌(she)狀(zhuang)(zhuang),甚側(ce)扁。頭略短(duan)(duan)。吻頗短(duan)(duan),前(qian)(qian)端圓(yuan)鈍(dun),鉤狀(zhuang)(zhuang)突短(duan)(duan),尖端不(bu)伸(shen)達(da)有眼(yan)(yan)側(ce)前(qian)(qian)鼻(bi)(bi)孔(kong)(kong)下(xia)方。眼(yan)(yan)大,兩(liang)眼(yan)(yan)均位(wei)于(yu)頭部左側(ce),下(xia)眼(yan)(yan)前(qian)(qian)緣(yuan)在上(shang)眼(yan)(yan)前(qian)(qian)緣(yuan)后(hou)方。眼(yan)(yan)間(jian)隔甚窄(zhai),兩(liang)眼(yan)(yan)幾相連。有眼(yan)(yan)側(ce)前(qian)(qian)鼻(bi)(bi)孔(kong)(kong)管狀(zhuang)(zhuang),位(wei)于(yu)下(xia)眼(yan)(yan)前(qian)(qian)方,后(hou)鼻(bi)(bi)孔(kong)(kong)卵圓(yuan)狀(zhuang)(zhuang),位(wei)于(yu)眼(yan)(yan)間(jian)隔前(qian)(qian)部。無(wu)眼(yan)(yan)側(ce)前(qian)(qian)鼻(bi)(bi)孔(kong)(kong)管狀(zhuang)(zhuang),位(wei)于(yu)上(shang)頜(he)上(shang)方,后(hou)鼻(bi)(bi)孔(kong)(kong)位(wei)置較高。
西(xi)寶舌鰨口(kou)(kou)小,下(xia)位,口(kou)(kou)裂弧(hu)形,口(kou)(kou)角后端伸達下(xia)眼中部(bu)的(de)下(xia)方。有眼側兩頜無牙(ya),無眼側兩頜具細絨毛(mao)狀(zhuang)牙(ya),窄帶狀(zhuang)排列。鰓(sai)孔窄長。前鰓(sai)蓋骨邊緣(yuan)不(bu)游離。鰓(sai)蓋膜(mo)不(bu)與峽部(bu)相連(lian)。無鰓(sai)耙。
西寶舌鰨體兩側均(jun)(jun)被櫛鱗,鱗略大。除尾鰭基部外(wai),各鰭均(jun)(jun)不被鱗。有眼側具(ju)2條側線(xian)(xian),上(shang)中側線(xian)(xian)間具鱗9行,中(zhong)側線至臀鰭基底間(jian)具鱗14行。無眼(yan)側無側線。背鰭(qi)(qi)起(qi)點(dian)(dian)在(zai)吻部近前端的背方。臀鰭(qi)(qi)起(qi)點(dian)(dian)在(zai)鰓蓋后(hou)(hou)緣的后(hou)(hou)下方。背鰭(qi)(qi)和臀鰭(qi)(qi)鰭(qi)(qi)條均不分支,后(hou)(hou)端均與尾(wei)鰭(qi)(qi)相連(lian)。無胸(xiong)鰭(qi)(qi)。有眼(yan)側具(ju)腹鰭(qi)(qi),以膜與臀鰭(qi)(qi)相連(lian),無眼(yan)側無腹鰭(qi)(qi)。尾(wei)鰭(qi)(qi)后(hou)(hou)緣尖形。有眼(yan)側褐色(se)(se),具(ju)暗(an)斑。奇鰭(qi)(qi)具(ju)暗(an)色(se)(se)小(xiao)點(dian)(dian)。
西寶(bao)舌鰨是暖(nuan)水性淺海底(di)層小魚(yu),居于水底(di),深度上(shang)下限69–91 m。