Heller, 1861 : 14 Klunzinger, 1913 : 316 Tetralia nigrifrons Serène & Dat, 1957 : 290 Tetralia nigrifrons Serène & Dat, 1957 : 116 Phylogeny and systematics of the Trapeziidae Miers, 1886 (Crustacea: Brachyura), with the description of a new family PETER CASTRO PETER K. L. NG SHANE T. AHYONG Zootaxa 2004 643 1 70 55NKK Heller, 1861 Heller 1861 [264,742,283,310] Malacostraca Tetraliidae Tetraloides Animalia Decapoda 31 32 Arthropoda species heterodactyla     Tetralia heterodactyla  Heller, 1861: 14.    Tetralia pubescens  Klunzinger, 1913: 316, pl. 7, fig. 15.  Tetralia nigrifronsforma  fusca  Serène & Dat, 1957: 290.  Tetralia nigrifronsforma cyanea  Serène & Dat, 1957: 116.   Remarks.  Tetralia nigrifronsforma cyanea Serène & Dat, 1957( typelocality Vietnam), is almost certainly identical with  Tetraloides heterodactyla Heller, 1861. Serène & Dat (1957)described the taxon as having bright blue spots on the ambulatory legs ("... le vif de ses taches bleues sur les péreiopodes)", a diagnostic characterisation of live or freshly preserved specimens ( Castro 1997b: 46). The typematerial (a female lectotypeand a female paralectotype, NMV 11a) is in the Naturhistorisches Museum, Vienna.