The Echinoid Directory

Salmacopsis Doderlein, 1885, p. 93

Diagnostic Features	Test small, subglobular. Apical disc generally dicyclic, with distinct ring of tubercles surrounding periproct. Gonopores marginal. Periproct subcircular Ambulacral zones about two-thirds width of interambulacral zones; plating trigeminate. Pore-pairs forming a single weakly arcuate band. One primary tubercle to each ambulacral plate adapically with naked perradial zone; two subequal tubercles on ambital and subambital plates. Interambulacral plates relatively tall with distinct naked interradial zone to ambitus. Primary tubercle usually distinct on adapical plates; with three subequal tubercles on subambital plates. Primary tubercles imperforate and non-crenulate. Small pits at sutural triple junctions adapically in both interradial and perradial zones. Peristome small, flush with almost no buccal notches; membrane almost naked with small buccal plates only.
Distribution	Recent; Japan.
Name gender	feminine
Type	Salmacopsis olivacea Doderlein, 1885, by original designation.
Species Included	S. olivacea Doderlein, 1885; Recent, Japan. S. keiensis Mortensen, 1942; Recent, Kei Islands.
Classification and/or Status	Camarodonta; Temnopleuridea; Temnopleuridae. Treated as a subgenus of Microcyphus Agassiz, 1846.
Remarks	Doderlein, L. 1885. Seeigel von Japan und Lui-Kiu-Inseln. Archiv fur Naturgesch. 51 (1), 73-112. Mortensen (1943), while recognizing there were distinct species groups within Microcyphus, chose to keep all within the same genus, including Salmacopsis olivacea. Mortensen, T. 1943. A monograph of the Echinoidea Part III.2, Camarodonta 1. C. A. Reitzel, Copenhagen