ResearchGate
Info
There was initially no more precise information on the habitat and depth range of this annelid species.
However, Gravier (1900) originally described a sponge needle as a long needle, which suggests that this species is associated with a sponge.
The scientific report "Two new endosymbiotic species of Haplosyllis (Polychaeta: Syllidae) from the Indian Ocean and Red Sea, with new data on H. djiboutiensis from the Persian Gulf" was able to shed some light on the darkness, the depth distribution could be determined as 25 - 31.5 meters (Persian Gulf / Arabian Sea).
These worms were discovered inside host sponges from the submerged columns of an oil platform, as well as inside a pink, unidentified sponge buried in coarse sand.
Haplosyllis djiboutiensis has a robust body and 200 or 900 worms could be counted in relatively small host sponges.
Haplosyllis djiboutiensis is similar to Haplosyllis granulosa and Haplosyllis carmenbritoae.
To the photo:
Figure 2: Haplosyllis djiboutiensis.
Adult specimen from the Persian Gulf (Abu Dhabi) in the reproductive stage.
A) Complete specimen, with the last 12 segments at the beginning of the propagation process.
B) Detail of the modified region. The arrows indicate the position of the eyespots. (MMCN 16.01/13180). Scale bar: A =1 mm, B = 800 μm
Synonym: Syllis (Haplosyllis) djiboutiensis Gravier, 1900
Literature reference:
Lattig, Patricia and Martin, Daniel
Two new endosymbiotic species of Haplosyllis (Polychaeta: Syllidae) from the Indian Ocean and Red Sea, with new data on H. djiboutiensis from the Persian Gulf
DOI 10.1080/11250003.2011.569373
Italian Journal of Zoology
Synonym: Syllis (Haplosyllis) djiboutiensis Gravier, 1900
However, Gravier (1900) originally described a sponge needle as a long needle, which suggests that this species is associated with a sponge.
The scientific report "Two new endosymbiotic species of Haplosyllis (Polychaeta: Syllidae) from the Indian Ocean and Red Sea, with new data on H. djiboutiensis from the Persian Gulf" was able to shed some light on the darkness, the depth distribution could be determined as 25 - 31.5 meters (Persian Gulf / Arabian Sea).
These worms were discovered inside host sponges from the submerged columns of an oil platform, as well as inside a pink, unidentified sponge buried in coarse sand.
Haplosyllis djiboutiensis has a robust body and 200 or 900 worms could be counted in relatively small host sponges.
Haplosyllis djiboutiensis is similar to Haplosyllis granulosa and Haplosyllis carmenbritoae.
To the photo:
Figure 2: Haplosyllis djiboutiensis.
Adult specimen from the Persian Gulf (Abu Dhabi) in the reproductive stage.
A) Complete specimen, with the last 12 segments at the beginning of the propagation process.
B) Detail of the modified region. The arrows indicate the position of the eyespots. (MMCN 16.01/13180). Scale bar: A =1 mm, B = 800 μm
Synonym: Syllis (Haplosyllis) djiboutiensis Gravier, 1900
Literature reference:
Lattig, Patricia and Martin, Daniel
Two new endosymbiotic species of Haplosyllis (Polychaeta: Syllidae) from the Indian Ocean and Red Sea, with new data on H. djiboutiensis from the Persian Gulf
DOI 10.1080/11250003.2011.569373
Italian Journal of Zoology
Synonym: Syllis (Haplosyllis) djiboutiensis Gravier, 1900
