40 PROCEEDINGS OF THE MALACOLOGICAL SOCIETY. 



48. Oliva todosina, Duclos. Perhaps a variety of 0. sidelia, Duclos. 

 Many specimens, mostly of ocliraceous colour, with obscure tessellated 

 pattern, not exhibiting much variation. 



49. Oliva (Agaronia) gibbosa, Born ( 0. utrieidus, Gmelin). Ranging 

 from West Africa and India eastward. 



We are much indebted to Mr. J. M. Williams for having examined 

 ^11 these Olives, and given us his notes thereupon. 



50. MiTEA (Tuerictjla) BRioisTiE, Sby. A very handsome Turricula, 

 with broad fuscous band on the body-whorl, the rest of the shell 

 cinereous-gray. Three specimens were collected by Mr. Henderson. 



51. MiTRA (Tfrricula) ciNCTELiA, Lam. A Molucca and Philippine 

 species extending to the Andamans. 



52. MiTRA (Turhicula) cuRviiiRATA, Sby. Quite distinct from 

 M. melongena, Lam. It is a rare species. 



53. MiTRA (Turricula) plicata, Klein. Typical forms, as also two 

 young examples, showing brickdust-red banding, one sent by 

 Mr. Booley, one by Mr. Henderson. 



54. MiTRA (Costellaria) Dohrni, a. Ad. One of the group in 

 which M. mucronata, Swains., and M. nodilirata, A. Ad., are the 

 most conspicuous. Only one example. 



55. MiTRA (Costellaria) interstriata, Sby. Two specimens 

 probably belong to this species, which has no connection with 

 M. militaris, Peeve, as Tryon opines. 



56. *MiTRA (Costellaria) obeliscus, Peeve. We have not seen 

 G. and H. l^evill's If. Andamanica, which presumably is a variety 

 of this, but the shell before us seems quite typical of M. obeliscus. It 

 ranges throughout Polynesia. 



57. MiXRA (Costellaria) rectilateralts. Sby. {= If. exquisita, Sby.). 

 A pretty form. Mr. Pulton and Mr. Edgar Smith agree in uniting 

 If. exquisita with this species. 



58. Mitra (Callithea) stigmataria, Lam. (J. P. H.) 



59. Mitra (Chrysacme) ticaonica, Peeve. (J. P. H.) 



60. Mitra (Pusia) affinis, Peeve. Perhaps a variety of If. aureo- 

 lata, Swains., but the Andamanese specimens we have seen are very 

 constant. Distributed throughout Polynesia. 



61. Mitra (Pusia) venustula. Reeve. 



62. Mitra (Ptjsia) nucleola, Lam. Considered by Tryon a mere 

 variety of If. aureolata, but the dark transverse lineation is constant. 

 We consider this form to be a distinct species. 



63. Mitra (Cancilla) nexilis, Mart. {= If . filar is, L.). (J. P. H.) 



64. Mitra (Cancilla) circulata, Kiener. (J. R. H.) 



65. Mitra (Cancilla) insculpta, A. Ad. A well-marked local 

 form, showing much elegance in its cancellated sculpture. 



66. Maeginella (Glabella) scripta, Hinds. We are indebted to 



