Fig. 2. Two types of habitats of Composetia in the Ryukyu Islands, southern Japan. A, habitat of the stream type on the uplifted coral reefs at East of Mifuga in Kume-jima island (No. 19 in Fig. 1 and Table 1), where C. kumensis was found; B, habitat of the usual river type in the uppermost estuary in Yani-gawa river in Amami-oshima island (No. 1 in Fig. 1 and Table 1), where C. tokashikiensis was found. Black arrows indicate the habitats of Composetia. White arrows indicate freshwater flow.

Published as part of Sato, Masanori, Ebihara, Takumi, Satake, Kiyoshi, Kojima, Shigeaki, Fukumori, Hiroaki & Angsupanich, Saowapa, 2020, Distributions and Variations of Two Estuarine Species of Composetia (Annelida: Nereididae) in the Ryukyu Islands, Southern Japan, with a New Record of Composetia tokashikiensis from Thailand, pp. 25-38 in Species Diversity 25 (1) on page 30, DOI: 10.12782/specdiv.25.25, http://zenodo.org/record/4584042