The gross brain morphology and the peripheral olfactory organ of Microglanis garavelloi are described throughout development, and the relationship of these organs to the general behaviour of the species is discussed. During the development, the main brain subdivisions undergo a series of morphological changes keeping a relatively constant volume increase. However, we observed different growth rates in the brains of males and females when these were compared. During the maturation process, a series of hormonal events result in the development of some secondary sexual traits in the brain of male specimens, like faster growth rate of brain areas linked to motor control, olfactory and visual responses. The number of olfactory-organ lamellae increases continuously in both males and females, during their maturation period. These results suggest that changes may be caused by cognitive demands that this species is exposed throughout its lifespan. The gross morphological arrangement of the central nervous system indicates shared patterns with other members of the family Pseudopimelodidae.

中文翻译：

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Microglanis garavelloi Shibatta 和 Benine 的大脑个体发育 2005 (Teleostei: Siluriformes: Pseudopimelodidae)

Microglanis garavelloi 的大体大脑形态和外围嗅觉器官在整个发育过程中都有描述，并讨论了这些器官与物种一般行为的关系。在发育过程中，主要的大脑细分经历了一系列的形态变化，保持了相对恒定的体积增加。然而，当进行比较时，我们观察到男性和女性大脑的不同增长率。在成熟过程中，一系列荷尔蒙事件导致男性标本大脑中出现一些第二性征，例如与运动控制、嗅觉和视觉反应相关的大脑区域的生长速度更快。在雄性和雌性成熟期间，嗅觉器官薄片的数量不断增加。这些结果表明，这种变化可能是由该物种在其整个生命周期中暴露在外的认知需求引起的。中枢神经系统的大体形态排列表明与 Pseudopimelodidae 科的其他成员共有的模式。