底灯鱼属鱼类仔稚鱼的种类鉴别、发育形态及其分类检索

IDENTIFICATION AND MORPHOLOGICAL CHARACTERISTICS OF LARVAE AND JUVENILES IN GENUS BENTHOSEMA GOODA ET BEAN

对1978年4～5月太平洋中部热带水域和1984年4～7月东海外海黑潮流域调查期间采集到的底灯鱼属鱼类的仔稚鱼样品进行分类鉴定,共鉴定出了七星底灯鱼、耀眼底灯鱼、带底灯鱼、冰底灯鱼和巴拿马底灯鱼5种仔稚鱼,描述了其个体的发育形态,构建了种类的分类检索表。首次记录了巴拿马底灯鱼在我国东海外海的分布,以及冰底灯鱼在太平洋赤道附近海域(1°10'N,171°30'W;水深5 465 m)的分布,填补了这两个种类在我国及其邻近海域分布记录上的空白。

Based on the analysis of Benthosema Gooda et Bean,1896 larvae and juveniles samples collected in the oceanographical expedition cruises which were conducted on central and Western tropical Pacific during Apr. to May 1978 and in the Kuroshio extension region in the East China Sea during Apr. to May 1986,this paper identified the larvae and juveniles of Benthosema pterotum （Alcock,1891） ,B. suborbitale Gilbert, 1913, B. fibulatum （Gilbert et Cramer, 1897） ,B. glaciale （Reinharat,1837） and B. panamense （Tning, 1932） , described their ontogenic morphological characteristics in detail and established the identification key for these species. This paper reports the first record of B. panamense in extension region of the East China Sea and B. glaciale in the equatorial Pacific （1° 10＇ N, 171° 30＇ W; depth 5 465 m） ,which fills the recording gaps on distribution of the two species in China＇s sea waters and its adjacent regions.