TEENOSTOMA.— Plate I. 



Species 5. (Fig. a, b, Mils. Brit.) 



Teisostoma Cahpentikei. Tei. testa valde depressd, 

 spird fere obtectd ; ultimo anfractxt, planulato, 

 medio fissuratd ; callo umbilicati rotimdo ; aperturd 

 productd, labio interno supra anfractum penuUimwu 

 elevato ; labio externa ad medium rostrato. 



Cahpentek's Teinostoma. Shell much depressed ; 

 spire almost hidden ; last whorl fattened, witli a 

 medial fissure; umbilical callus rounded ; aperture 

 produced, inner lip raised above the penultimate 

 whorl, outer lip beaked in the middle. 



A. Adams. Ann. and Mag. of Nat. Hist., 18G1. 



llah. (iulf of Pechili. 



The suture and the apex of this shell are covered by 

 an enamel, leaving only a little pit wliere the point 

 should be. 



Species G. (Fig. a, b, Mus. Brit.) 



Teinostoma eadiatum. Tei. testd depressd, orbietdald. 

 superne convexiusculd, infra medium planiHsculd ; 

 lineis incrementi conspiciie concenirice liratd; an- 

 fractibus rapide crescentibus ; aperturd subrotundd, 

 antice productd ; labio interno ad suturam in- 

 crassato, usque ad apicem elevato ; callo subex- 

 cavato. 



The liAYED Teinostoma. Shell depressed, orbicular, 

 rather convex above, rather iiat below the middle ; 

 concentrically ridged with conspicuous lines of 

 growth; aperture rather rounded, produced an- 



teriorly ; inner lip thickened at the suture, raised 

 as far as the apex ; callus somewhat excavated. 



A. Adams. Ann. and Mag. of Nat. Hist.. 18G0. 



Hal). Kino-0-Sima, Japan. 



Species 7. (Fig. 1, a, b, Mus. Brit.) 



Teinostoma lucidum. Tei. testd orbiculari, dfpressd, 

 aperturd sid)obliqud, antice rotundatim productd ; 

 callo rotunda, tumido. 



The lucid Teinostoma. Shell orbicular, depressed, 

 apertiu-e a little oblique, anteriorly roundly pro- 

 duced ; callus rounded, tumid. 



A. Adams. Ann. and Mag. of Nat. Hist., 1.S60. 



Hah. Japan. 



Species 8. (Fig. a, h, Mus. Brit.) 

 Teinostoma pusilluji. Tei. testd orbiculari, depressd, 



minutissime striatd ; suturd impressd; anfractu 



ultimo magno, ad peripheriam compressa ; labia 



interno septiformi, recto. 

 The dwauf Teinostoma. Shell orbicular, depressed, 



very minutely striated ; suture impressed ; last 



whorl large, compressed at the circumference ; 



inner lip sej^tiform, straight. 

 C. B. Adams. Conchological Contributions, p. 112. 

 Teinostoma anamalum, H. and A. Adams. 

 Teinostoma {calceolina) pusillum, Adams, Genera, 



Appendix. 

 Hub. U. States; Tanube, Japan. 



The straight inner lip of this little species gives it 

 the appearance of a Xeritina. 



