REFERENCE TO PLATES. 351 



FIGURE. PAQK. 



30, 31. Trigonochlamys Lederi, Bottger. Jahrb. Mai. 



Gesell., viii, t. 7, f. 3, 161 



32, 33. Damayantia dilecta, Issel. Ann. Mus. Geneva, vi, 



t. 4, f. 5, 6, 162 



34-30. Urocyclus flavescens, Keferstein. Mai. Blatt., xiii, 



t. 2, f. 1, 2, 4, 163 



.37. Mariaella Dussumieri, Val. Jour, de Conch., ser. i, 



t. 7, J- lb, ........ i l'_ 



PLATE 36. 



38, 39. Trigonochlamys bicolor, Bottger. Jahrb. Mai. 



Gesell., viii, t. 7, f. 4, ...... 161 



40-42. Mariaella Thwaitesi, Humbert. Guerin's Mag. 



Zool., t. 17, f. 1, 1862, . ... 162 



43, 44. Mariaella Philippinensis, Semper. Reisen Philipp., 



L. 1. I. 1'^, ........ 1 ' 1 1. 



45, 46. Mariaella infumata, Fer. Hist. Moll., t. 8 F, f. 1,3, 162 

 47, 48. Urocyclus Comorensis, Fischer. Jour, de Couch., 



t. 11, f. 1, 2, 1882, . . .... 163 



49, Urocyclus vittatus, Fischer. Jour, de Conch., t. 12, 



f. 1, 1882, . . 163 



50, 51. Urocyclus longicauda, Fischer. Jour, de Conch., 



t. 12,^f. 3, 8, 1882, . .... 163 



52. Urocyclus Buchholzi, Martens. Monatsb. Berlin, t. 5, 



f. 1, 1876, .... ... 163 



53, 54. Urocyclus Heynemanni, Dohrn. Mai, Bliitt., xv, 



t. I, f. 1, a, . . . . . . . .164 



55, 56. Uroc}'clus bella, He}'nemann. Jahrb. Mai. Gesell., 



x, t. 2, f. 1, 4, . . . . . . . . 164 



57, 58. Aspidelus Chaperi, Morelet. Jour, de Conch., 



t. 10, f. 1, 1883, 167 



62, 63. Vitrinozonites latissimus, Lewis, . . . . 167 



PLATE 37. 



41). 50. Parmarion problematicus, Fer. .... 166 



51, 52. Parmarion Beccarii, Issel. Ann. Mus. Genova, 



vi, t. 4, f. 9. 10, 166 



53, 54. Parmarion Doria?, Issel. Ibid., t. 4, f. 7, 8, . .167 

 55-58. Parmarion Fischeri, Smith. Zoo). Proc., t. 23, 



f. 15, 1884, 167 



59-61. Parmarion croceus, Austen. Zool. Proc., t. 30, f. 9, 



1872, 164 



62. Parmarion Shillongensis, Austen. Jour. As. Soc. 



Bengal, xliv. t. 2, f. 1, . . . . . .164 



63. Parmarion Nagaensis, Austen. Ibid., t. 2, f. 3, . .165 



64. 65. Parmarion rubrum, Austen. Ibid., t. 2, f. 4, . 165 



