Kalmar "genus Scincus" tana nufin rukuni na kadangaru a cikin dangin Scincidae waɗanda aka fi sani da sandfish. Wadannan kadangaru ana siffanta su da cylindrical, elongated shape na jikinsu da santsin sikeli. An daidaita su don salon binnewa a cikin ƙasa mai yashi kuma ana samun su a cikin ɓangarorin busasshiyar ƙasa da ɓarke ​​na Arewacin Afirka da Gabas ta Tsakiya. Halin halittus ya haɗa da nau'ikan nau'ikan kayan sanduna da yawa, gami da Sandfish (zeincus zeincus), wanda aka sani don ikonsa na "iyo" ta hanyar yashi ta hanyar rufe jikinta.