13 Dr. P. P. Carpenter on new Forms of Mollush 



peripheriam ornata ; basi quoqiie rufo-fusca, valde prolongata, 

 regulariter excurvata; anfr. nucl. ii., tumidioribus ; norm, viii., 

 planatis, suturis baud conspicuis ; varicibus nuUis ; apertura xalde 

 elongata ; labro vix sinuato ; labio vix calloso. Long. ■ 1 7, long, 

 spir. -12, lat. -05 poll., div. 20°. 



45. Opalia crenatoides. 



0. testa turrita, alba, marginibus spires rectis; anfr. nucl. ?....; 

 norm, vi., compactis, attingentibus ; costis radiantibus circ. x., in 

 spira plerumque obsoletis, ultimo anfractu validioribus, latis, baud 

 exstautibus, attingentibus, spiram lineis fere rectis ascendentibus ; 

 suturis inter costas altissime indentatis ; carina obtusa basali, su- 

 turse continua ; inter costas radiantes undique, ut in suturis, iu- 

 dentata ; costis interdum, propter lirulas spirales subobsoletas, sub- 

 nodosis ; columella hand umbilicata ; basi antice leevi. Long. •54, 

 long. spir. -38, lat. -23 poll., div. 30°- 



Additional specimens may connect this with the Portuguese 

 0. crenata. 



46. Truncaria eurytoides. 



T. testa parva, turrita, gracili ; albida, ssepius fascia circa peripheriam 

 maculis fusco-aurantiacis picta ; anfr. nucl. mamillatis, laevibus ; 

 norm, v., effusis, subplanatis, ultimo paulum constricto ; costulis 

 radiantibus circ. xx., aperturam versus evanidis ; apertura sub- 

 quadrata ; labro baud incrassato, interdum intus subtiliter striato, 

 baud dentato ; labio appresso ; columella abrupte truncata. 

 Long. -3, long. spir. -2, lat. -11 poll., div. 23°- 



Variat basi fusco tincta, seu tota superficie ut in Nitidella cribraria 

 picta. 



47. Sistrum (? ochrostoma, var.) rufonotatum. 



S. testa S. ochrostomati simili, sed minore, angustiore, vix tabulata ; 

 alba, linea punctorum rufo-fuscorum subperipheriali, interdum 

 lineis spiralibus, interdum ejusdem coloris maculis, ornata ; vert, 

 nucl. mamillato, anfr. iii., Isevibus, vix turaidis ; norm, v., plus 

 minusve elongatis, in medio nodoso-angulatis, postice planatis, 

 suturis ad angulum valde obtusum conspicuis ; seriebus nodulorum 

 spiralibus iii., quarum postica major, secundum costas radiantes 

 obsoletas circ. vi.-viii. ordinatis ; seriebus anticis inconspicuis ii. ; 

 interdum costulis spiralibus intercalatis ; canali brevi, rectiore, 

 aperto, angusto ; apertura subovali, vix subquadrata, intus pallide 

 aurantiaca; labro acutiore, dorsaliter subvaricoso, postice ssepe 

 sinuato, intus obscure vi. -dentato ; labio conspicuo, interdum ex. 

 stante. Long. -5, long. spir. -23, lat. -32 poll., div. 60°. 



Variat testa obesa, nodulis validis. Variat quoque testa acuminata, 

 nodulis subobsoletis. Long. -52, long. spir. -23, lat. -25 poll., 

 div. 42°. & 1 . F . 



48. 'iNitidella millepunctata. 

 IN. testa parva, nitida, livida ; spira cxstante, anfractibus subpla- 

 natis, suturis distinctis ; anfr. nucl. leevibus, adolescentibus obso- 



220 



