Genus Metalycaeus Pilsbry, 1900

Metalycaeus Pilsbry, 1900: 382 .

Type species. Alycaeus (Metalycaeus) melanopoma PILsbry, 1900 (syNONym Of Chamalycaeus nipponensis [REINHardT, 1877], sEE MINaTO 1988), by sUbsEqUENT dEsIGNaTION (THIELE 1929).

Remarks. THE GENErIC LEvEL rEvIsION Of THE ALyCaEIdaE Is IN prOGrEss. HErE wE rEfraIN frOm GIvING a dIaGNOsIs, aNd TENTaTIvELy CLassIfy aLL CHINEsE, LaO aNd VIETNamEsE spECIEs IN Metalycaeus, wHICH HavE spIraLLy sTrIaTEd prOTOCONCHs. BOTH Metalycaeus aNd Chamalycaeus HavE spIraL sTrIaE ON THE TELEOCONCH, bUT THE spIraL sTrIaTION Is mIssING ON THE prOTOCONCH Of THE LaTTEr (FIGUrE 46).