Shell Family of Taiwan
Dialidae 天螺科contain10 species in Taiwan，show1 - 10
 
Dialidae 科：Shell elongate conical, simple, without varices and a siphonal canal. Protoconch usually smooth. Operculum pausispiral with eccentric uncleus. Posterior opercular lobe flap extending over the posterior part of the foot.
Senitfic Name
Chinese Name
omenclator
photo
 Diala albugo 麻天螺  (Watson, 1886)  
 Diala bella 綴天螺  A. Adams, 1868  
 Diala nyussana 台灣天螺  (Smith, 1877)  
 Diala planalba 光天螺  Laseron, 1956  
 Diala polymorpha 綠島天螺  (Smith, 1877)  
 Diala semistriata   (Philippi, 1849)  
 Diala stricta 精天螺  Habe, 1960  
 Diala sulcifera   A. Adams, 1862  
 Diala sulcifera martensi   (Issel, 1869)  
 Diala varia 天螺  A. Adams, 1861