- y Ob - 



lated on its iruier e '^ ; . 



Dlmensloris .- ' -., 1- . :" ;.i .; „1^-, "".1 .; . nniTipr-i. ^ 

 5.9 rani, 



Remark s .- Tliis species is a "bunclant ly represented and the 

 characters are very constant esoe'ot that one or . ..„ \- "'.'.- 



viduals :, ave slightly coarser sculpture than the typical rorm, 

 ■The rather small size, convexity and relatively fine sc ^ "e 



are -•'••^ ^^- aracteristic features. In outline and convexity pre - 

 varioa'"a closely resemhles the co-e>:istent guadri sulcata , hut it 

 never attains tlie size of that species and inc^ivifluals of the same 

 si^:-^ •'■ --^■^ '"^ * '■-'tinguishe "" by the coar^^-^"'^ "--ciilptu •■"'^: - " - ,iad- 



ri .sulcata ; in audition, pua'o.risulcata has a smaller, l>u' 

 deeply impressed lunule, slightly stronger cer-linal tee V 

 coniev,-''--- '• ' er laterals. The you: g of hoth speci j'", '-o'-'- 



ever, to be variable in the strength of the 1' ' in the 



Gi5;e .'-oth of the lunule. Dall has described a Ooi t- 



chie species, _. ■^■-.j. .osa ^j\ ■■'-ich is also very '^■'■^=- jev^ri- 



(1). loc. cit., 0. l-^-^l, pi. 51, fig. 5, 190?. 



cata . but has slightly finer scu'^. ^ture. 



Gabb's Santo DominP'ian T'l^oina rJensQta inolucie no. 

 that perhaps should be referred co •,:reva- i.a: -v, . -.i.ie others seem 



