Records of the nudibranch Hexabranchus sanguineus on Tongatapu island, Tonga

Occurrence Observation
最新版本 published by Southwestern Pacific Ocean Biogeographic Information System (OBIS) Node on 12月 20, 2022 Southwestern Pacific Ocean Biogeographic Information System (OBIS) Node
發布日期:
2022年12月20日
授權條款:
CC-BY 4.0

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說明

This dataset records the occurrence records of the nudibranch Hexabranchus sanguineus collected for the paper "Habitat, food and reproductive activity of the nudibranch Hexabranchus-sanguineus on Tongatapu island" by Francis, 1980. The taxonomy of the genus Hexabranchus Ehrenberg,1831 is confused and requires revision. More than 20 species have been described (see Thompson, 1972), many of them based primarily on differences in colour pattern. Some authors (Bergh, 1900; Eliot, 1904; Thompson, 1972) consider the many named species to be merely colour varieties of Hexabranchus sanguineus (Riippell & Leuckart, 1828). The validity of the use of colour pattern as a taxonomic character remains to be demonstrated in this genus. Nevertheless, a full description of the colour pattern of Tongan Hexabranchus is given below to facilitate comparative studies in the event that colour does prove to be distinctive. External and internal morphology appear to vary little among the described varieties (Eliot, 1904) but these features were not investigated in Tongan animals.In the absence of any distinctive taxonomic characters, Tongan Hexabranchus are here referred to the type species of the genus, H. sanguineus (Riippell & Leuckart). Other described "species" will here be considered simply as colour variations of H. sanguineus.

資料紀錄

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版本

以下的表格只顯示可公開存取資源的已發布版本。

如何引用

研究者應依照以下指示引用此資源。:

Francis M (2022): Records of the nudibranch Hexabranchus sanguineus on Tongatapu island, Tonga. v1.0. Southwestern Pacific Ocean Biogeographic Information System (OBIS) Node. Dataset/Occurrence. https://nzobisipt.niwa.co.nz/resource?r=hexabranchus_sanguineus_tonga&v=1.0

權利

研究者應尊重以下權利聲明。:

此資料的發布者及權利單位為 Southwestern Pacific Ocean Biogeographic Information System (OBIS) Node。 This work is licensed under a Creative Commons Attribution (CC-BY 4.0) License.

GBIF 註冊

此資源尚未向GBIF註冊

關鍵字

Occurrence; Observation

聯絡資訊

Malcolm Francis
  • 元數據提供者 ●
  • 出處 ●
  • 連絡人
  • Marine Biologist
NIWA
Wellington
NZ

地理涵蓋範圍

Tongatapu, Tonga

界定座標範圍 緯度南界 經度西界 [-21.27, -175.347], 緯度北界 經度東界 [-21.13, -175.145]

分類群涵蓋範圍

無相關描述

Species Hexabranchus sanguineus

時間涵蓋範圍

起始日期 / 結束日期 1976-03-18 / 1976-11-30

引用文獻

  1. Francis, M. 1980. Habitat, food and reproductive activity of the nudibranch Hexabranchus-sanguineus on Tongatapu island. The Veliger, Vol. 22, Berkeley, CA, California Malacozoological Society, pp. 252-258.

額外的詮釋資料

marine, harvested by iOBIS

替代的識別碼 https://nzobisipt.niwa.co.nz/resource?r=hexabranchus_sanguineus_tonga