Journal of Tianjin Agricultural University ›› 2026, Vol. 33 ›› Issue (3): 42-45.doi: 10.19640/j.cnki.jtau.2026.03.008

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Histological study of the Spondylidae

Zhen Wenjing1,2, Sun Jingfeng1, Zhang Wenwen2, Wang Jiangyong2,Corresponding Author   

  1. 1. College of Fisheries,Tianjin Agricultural University, Tianjin 300392, China;
    2. Huizhou University, Huizhou 516072, Guangdong Province, China
  • Received:2024-11-09 Online:2026-06-30 Published:2026-06-30

Abstract: The histological characteristics of the closed-shell muscle, gills, coat membrane, hepatopancreas and gonads of the Spondylidae were studied using paraffin sections and HE staining. Dissection and morphological observation of the adult Spondylus Spondylidae revealed its internal structural organization. The results showed that its adductor muscles consist of both striated and smooth muscle types. Gills are mainly composed of inner gill flaps and outer gill flaps with gill flaps divided into main gill filaments and common gill filaments. The outer coat membrane consists of the limbic membrane and the central membrane, of which the limbic membrane includes three kinds of protuberances, namely, shell-bearing protuberances, sensory protuberances, and rimming protuberances; And the inner and outer epidermis of the central membrane is made up of single-layered columnar ciliated cells, which have the ability of stretching and retracting. Hepatopancreas is an important digestive gland of shellfish, which belongs to the complex ductal glands, and the epithelium of the ducts consists of two types of digestive cells and basophilic cells. The gonad has the function of producing, storing and releasing germ cells. The Spondylidae is dioecious and the gonad consists of three parts, the germinal follicle, the germinal tubules and the germinal ducts.

Key words: Spondylidae, histology, HE staining

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