142 



ZOXTTTD.I'. 



[Key to Species o/Euplecta. 



A. Shell turbinate or siibtarbinate, tliin, lioriiv, finely 



decussated above ." ". layardi. 



fiubdecussafa. 

 bacoui. 

 acalles. 

 pidchclht. 



B. Depressedly turbinate, or turbinate' or lenticulra', 



generall}' sharply keeled, with granular costulation 



or striation on upper surface semirl/'cifssafa. 



rosumonda, 



subcastor. 



travancorica. 



indicu. 



albizonatd. 



enuliana. 



Icevis. 



binoyaensis. 



veiTticula. 

 Jiuctnosa. 



prestoni. 



scobinoides. 



gardeneri. 



C. Globosely conoid or depressed, ■with rounded peri- 



phery subopacn. 



partita, 

 trinieni. 



1). Conoidly depressed and carinate acuducta. 



isabellina. 

 colletti. 



E. Trochiform. 



a. Sculpture granular cacuminifera. 



(/ranulifera. 



b. Sculpture finely decussated liyphasma. 



tiirritella. 



c. Smooth , mucronifera. 



phidias. 

 concavo-ipira. 

 apicata. 

 orbiates. 



F. Depressedly turbinate. 



Finely decussate mucosa.'] 



