Sclerodactylidae Panning, 1949

Martinez, Mariano I., Thandar, Ahmed S. & Penchaszadeh, Pablo E., 2013, A new species of Havelockia Pearson, 1903 from the Argentine Sea (Holothuroidea: Dendrochirotida: Sclerodactylidae), Zootaxa 3609 (6), pp. 583-588 : 584

Family Sclerodactylidae Panning, 1949

Diagnosis (amended from Smirnov, 2012: 821)

Dendrochirotida with 10 tentacles. Tube feet lying along radii, and often also arranged in the interradii, sometimes papilliform. Calcareous ring high; radial and interradial plates not fragmented, connecting to one another along almost entire length thus forming a short tube; radial plates with forked processes of medium-size, usually subdivided into three-four large pieces. Ossicles: tables with two or four pillars or plates, sometimes baskets or buttons.