Ghi chép các loài thuộc chi lươn rắn Xà cừ (Họ Ophichthidae) từ Việt Nam=Records of species of the snake eels genus Ophichthus (Family Ophichthidae) from Vietnam

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Tác giả: Hong Thi Tran Hoa, Huans-Ching Ho, Van Vo Quang, Thu Thi Le Thao, Thinh Cong Tran, Yusuke Hibino

Ngôn ngữ: vie

Ký hiệu phân loại:

Thông tin xuất bản: Khoa học và Công nghệ Biển, 2024

Mô tả vật lý: tr.55-68

Bộ sưu tập: Báo, Tạp chí

ID: 251918

Thêm vào giỏ

In Vietnam, the Ophichthus snake eel genus comprises 14 distinct species. This research aims to document and visually represent three previously undocumented findings and a newly discovered species. The species Ophichthus bicolor and Ophichthus machidai are meticulously described here, their characteristics based on five specimens each, gathered at depths of approximately 100–180 m and 50–100 m, respectively, in the vicinity of Quy Nhon. Additionally, Ophichthus obtusus is comprehensively described using 12 specimens collected from depths ranging from roughly 50 m to 120 m in the Quy Nhon and Nha Trang areas. Two specimens of Ophichthus shaoi were also recovered from Quy Nhon, contributing additional data regarding this species from Vietnamese waters. The identification of most species relied on careful examination of their morphological characters. These findings collectively raised the Ophichthus genus’s representation in Vietnamese waters by introducing three previously undocumented species, raising the total count to 17 compared to prior research. Furthermore, this study provides a comprehensive key to aid in identifying the various Ophichthus species found in Vietnam.Ở Việt Nam, chi lươn rắn Ophichthus gồm 14 loài riêng biệt. Nghiên cứu này nhằm mục đích ghi lại và trình bày trực quan ba phát hiện chưa được ghi chép trước đó và một loài mới được phát hiện. Các loài Ophichthus bicolor và Ophichthus machidai được mô tả tỉ mỉ ở đây, đặc điểm của chúng dựa trên 5 mẫu vật, mỗi loài tập trung ở độ sâu lần lượt khoảng 100–180 m và 50–100 m ở vùng lân cận Quy Nhơn. Ngoài ra, Ophichthus obtusus được mô tả toàn diện bằng cách sử dụng 12 mẫu vật được thu thập ở độ sâu từ khoảng 50 m đến 120 m ở khu vực Quy Nhơn và Nha Trang. Hai mẫu vật Ophichthus shaoi cũng được thu hồi ở Quy Nhon, đóng góp thêm dữ liệu về loài này ở vùng biển Việt Nam. Việc xác định hầu hết các loài dựa vào việc kiểm tra cẩn thận các đặc điểm hình thái của chúng. Những phát hiện này đã nâng cao sự hiện diện của chi Ophichthus ở vùng biển Việt Nam bằng cách giới thiệu ba loài chưa được ghi nhận trước đây, nâng tổng số lên 17 so với nghiên cứu trước đây. Hơn nữa, nghiên cứu này cung cấp một chìa khóa toàn diện để hỗ trợ việc xác định các loài Ophichthus khác nhau được tìm thấy ở Việt Nam.

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