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Dear Friends, A colleague of us in Spain (Dr Francisco Ramil, Universidad de Oviedo, Spain) found a small Cucumaridae(?) (9-16 mm length) (off Mauritania, Africa; seven specimens, 109-11 m depth) with ten tentacles, the ventral-most are smaller than the rest. Five rows of tube feet restricted to the ambulacral areas, and.. as you can see in the PDF attached to this mail (sorry! captions in Spanish), it only have one kind of ossicles in the body wall, these are small baskets scattered through the body wall..they can be seen at the naked eye. You can see some pics of the whole specimen, ossicles, calcareous ring, etc. Dr Cherbonnier, Dr Massin , Dr Thandar and Dr Samyn have many papers on African sea cuckes … but I never saw this beast picture in their works! Can you help us? Cheers, Francisco Dr. Francisco A. Solís-Marín Jefe de la Unidad Académica Ecología y Biodiversidad Acuática. Colección Nacional de Equinodermos "Dra. Ma. E. Caso Muñoz" Instituto de Ciencias del Mar y Limnología Universidad Nacional Autónoma de México Circuito Universitario s/n Deleg. Coyoacán Mexico, D,F., CP. 04510 Tel. (52) 56-22-58-43