Metalycaeus, Pilsbry, 1900

Asami, Takahiro, 2017, Revision of the Alycaeidae of China, Laos and Vietnam (Gastropoda: Cyclophoroidea) I: The genera Dicharax and Metalycaeus, Zootaxa 4331 (1), pp. 1-124 : 104

Metalycaeus sp.

Chamalycaeus nanus (partim, see remarks under D. nanus )— Jaeckel, 1950: 19.

Remarks. THE THrEE sHELLs Of " Chamalycaeus nanus " mENTIONEd by JaECkEL (1950) bELONGEd TO THrEE dIffErENT spECIEs. DUE TO THE wEaTHErEd sTaTE Of THE sHELLs, THE IdENTIfICaTION was pOssIbLE IN ONLy ONE CasE ( M. heudei , sEE UNdEr THaT spECIEs). THE sECONd sHELL (SMF 201255) was TOO wEaTHErEd fOr aNy dETErmINaTION. THE THIrd sHELL (SMF 346402) Had aN ELEvaTEd prOTOCONCH wITHOUT vIsIbLE sCULpTUrE, bUT ON THE R1 THE spIraL LINEs COULd bE sEEN. R2 Of THaT sHELL LaCkEd THE swELLING, wHICH ExCLUdEs IT frOm M. heudei . THE sHELL was mUCH smaLLEr THaN aNy M. oharai n. sp. spECImENs wE HavE ExamINEd. THErEfOrE, ONE Of JaECkEL's sHELL pOssIbLy rEprEsENTs aN UNdEsCrIbEd Metalycaeus spECIEs.