Ekambaranatha Ayyar, M; Ananthakrishnan, T N <br/><br/>
Manual of zoology, Part1, Vol.1: Invertebrata 

 - 5 
 -  S Viswanathan Printers and Publishers, Madras  1993 
 - 478 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Invertebrates; Zoology
<br/><br/><label>Dewey Class. No.: </label>PG 592  EKA-M5.1