The embryonic, larval and early postlarval development of the terebratellid brachiopod Calloria inconspicua (Sowerby)
The embryonic, larval and early postlarval development of the terebratellid brachiopod Calloria inconspicua (Sowerby)
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四肢类腕足动物 Calloria inconspicua (Sowerby) 的胚胎、幼虫和幼虫后早期发育
DOI：
10.1080/03014223.1996.9517507
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发表时间：
1996
影响因子：
2.2
通讯作者：
S. Chuang
中科院分区：
文献类型：
--
作者：
S. Chuang
前人的研究(Percival 1944；Doherty 1979)的差异；幼虫中色素斑点的独特位置；以及是否像Terebratalia Transversa(Sowerby)那样，初始壳在最终壳之前的问题，促使了对Terebratlid腕足类Calloria inconspicua(Sowerby)的研究(Strieker&Reed 1984,1985b)。1990年2月16日-3月30日在南岛奥塔哥港采集的378只Incspicua成熟标本中有49只在实验室产卵，1990年4月14-15日在北岛Leigh附近的山羊岛采集的约300只标本中有35只在实验室产卵。成熟的雄性会脱落精子或睾丸的碎片。每只雌性在12天的观察期内多次产卵，要么释放一个单独的发育阶段，要么释放几个发育阶段的混合，包括偶尔的卵巢碎片。卵子直径54-192厘米，大小不一，甚至在单个温泉中也是如此。
The present study of the terebratellid brachiopod Calloria inconspicua (Sowerby) was prompted by the discrepancy in locating the brood‐space in previous studies (Percival 1944; Doherty 1979); the unique position of the pigment spots in the larva; and the question of whether an initial shell preceded the definitive shell, as in Terebratalia transversa (Sowerby) (Strieker & Reed 1984, 1985b). Forty‐nine mature specimens out of a total of 378 C. inconspicua collected from Otago Harbour, South Island, on 16 February—30 March 1990, and 35 specimens out of about 300 collected on 14–15 April 1990 from Goat Island off Leigh, North Island, spawned in the laboratory. Mature males shed spermatozoa or fragments of their testes. Each female spawned several times within the observation period of 12 days, releasing either a single developmental stage or a mixture of several developmental stages, including occasional fragments of the ovaries. The ova, 54–192 im in diameter, varied widely in size even in an individual spa...