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Echinothuriid
No full textWalking over the seabedAn echinothuriid sea urchin.
The hooves on the spines are diagnostic for what Mortensen called asthenosomine echinothurioids. (This basically excludes only the Phormosoma group).
Notice the dark tips of the aboral spines; these are venom-bearing tissues.
There are 8 genera in the group with hooves on the spines the ambulacral plating strongly suggests a Sperosoma or a Tromikosoma
Echinoid from Mozambique (possibly Phormosoma placenta)
No full textwalking on seafloorEchinoid on the seafloor. Resembles Phormosoma placent
Barnacle
No full textDeep-water scalpelliform with reduced armament. Notable that the cirri are black – in other deep forms they have no pigmentation.
This is a more "yellow" species. Trianguloscalpellum hirsutum is described as being a pale yellow to brown color whilst, although undescribed in the literature, in general Trianguloscalpellum regium specimens are whitish grey in color. The Indo-Malayan distribution of T. hirsutum, however, indicates that to date it has only been recorded from the eastern Indian Ocean, but since there has been little deep water sampling in the Indian Ocean in general, it would not be surprising to find it in western areas. The recorded depth range of Trianguloscalpellum hirsutum is 1507-6135 m, which fits with the 2,500 m collection depth and, therefore, this is possibly Trianguloscalpellum hirsutum as the "yellow" species
Leachia sp. cranchiid squid
No full textswimmingIt is a Leachia sp., probably female. See http://tolweb.org/Leachia/19544. To determine the species you would have to examine it under a dissecting scope.
In the same family as the piglet squi
Coffinfish
No full textThis specimen is a Chaunax. It’s a member of the Chaunax fimbriatus group, and perhaps even C. fimbriatus. The systematics of the Indo-Pacific chaunacids has yet to be resolved, so identification is Chaunax, c.f. fimbriatus
Swimming sea cucumber
No full textA swimming sea cucumber (Holothurian) seen just above the seabed at Zafarani.
This is a species of Peniagone, possible P. diaphana