EXPLANATION OF PLATES, VOL. XIII. 2-">3 



KK.TIJK I'M.K 



PLATE 71. 



72-7">. Amphidromus- quadrasi Hid. var. Slieppenl, <k j !.. . 22'.> 



"ti. Ampliidromus quadrasi snlidus Full. After Fulton, . 230 



77. Ampliidromus quadrasi Hid. !. de C., 1887, . . . 22'.i 



78. Amphidromus quadras! Hid. Shepperd, del., . . . 229 



79. 80. Amphidromus quadras! duliius Full. After Fulimi, . 231 

 81,82,83. Amphidromus quadrasi duliius Fult. Sliepperd, del., 231 

 84-9]. Amphidromus quadrasi vcrsiculor Fult. Sheppcrd, del., 2MO- 



PLATK 72. 



1-5. Placostylus (Diplomorpha) layardi Braz. .Shepperd, ihd., 1 1 ~\ 



(]. P. (D.) lira/ieri Harlm. Sliepperd, del., . . . 11(> 



7. 8. P. (D.j peasei Cox. Sliepperd. del., . . . .117 



9. P. (D.) peasei Cox. P. Z. S., 1 S7 1 , .117 



10-12. P. (D.) delatouri Ilartin. Sliepperd, del.. . . 117 



13, 14. P. (D.) coxiana Pils. Slieppenl. del., . 118 



15. 1'. (D.) nijrsi Hartm. Proc. A. N. S., 1890, . .119 



Hi. P. (D.) l.ernieri Hartm. Proc. A. N. S., 1890, ' . .119 



17. P. (D.) layardi Braz. Apex. Sliepperd, del., 14, 115 



18. P. liavgravesi Cox, Apex. Pilsbry, del., . . . '.;! 



DATES OF ISSUE OF VOLUME XIII. 



Part 49, pp. 1-C.4. plates 1-15, April 23, 1900. 

 Part 50, pp. r,:>-112, |.lates 1 f,_34, August 3, 1900. 

 Part ."!, pp. 113-176, plates 35-48, October 17, P." HI.. 

 Part 52, pp. 177-253, plates 49-72, December. 1900. 

 Title-page, Preface and Contents, December, 1900. 



