116 



CoLUMBELLA LANCEOLATA. Col.testd oblongd, turrild, albiddjfulvo 

 varid ; spird acuminato-pyramiduU ; cmfructibus 10-12; primis 

 G— 7 lavigatis ; cceleris serie nnicd lubcrculorum instruct'ts ; iiltimi 

 dorso subgibbo, parte inferiore transversim striatd ; apertiirx elon- 

 gate canali breviusculd, subrecurvd ; labio externa incrassato, va- 

 riciformi : long. I/Vj lat. -,St poll. 



Hab. ad Insulas Gallapagos. 



Found in fine coral sand in from six to eight fathoms. 



CoLUMBELLA MACULOSA. Col. testd oblongo-subuldtd, albidd, irre- 

 gulariter fulvo maculatd ; spird acuminato-pyramidali ; anfracti- 

 biis 9-10 ; primis 7-8 lavigatis ; cceteris tuberculorum serie 

 unicd coronatis ; ultimo serie alterd adjectd ; aperturd brevi, 

 canali subrecurvd : long. 1, lat. -/g- poll. 



Hab. ad littora Americse Centralis. (Guacamayo. ) 



Dredged with Col. suhulata in sandy mud. 



CoLUMBELLA H^MASTOMA. Col. tcstd oblongd, IcEvigutd, apice 

 acuminato ; anfractibus 7—8, castaneis, albo maculatis, ultimo 

 dorso nigro, infrU castaneo ; aperturd elongatd, flexuosd ; labio 

 cxterno extiis incrassato, superne prominente, albo ; peritremate 

 aurantiaco ; labio interna intiis denticulato ; columelld unitubercu- 

 latd : long. -jV. Idt. iV poll. 



Hab. ad insulas Gallapagos et ad littora Panamse. 



Found under stones. 



A dwarf variety occurs, which differs, however, very slightly in its 

 proportions. 



CoLUMBELLA VARiA. Col. tcstd oblongd, decussato-costatd, apice 

 acuminato ; anfractibus 8-9 fuscis, albido variegatis, longitudi- 

 naliter castatis, interstitiis costarum sulcatis ; aperturd subovali ; 

 labii externi extiis incrassati margine superne emarginatd : long. 1 , 

 lat. J^ poll. 



Hab. ad Panamam, sub lapidibus. 



The ribs cease a little below the middle of the last volution. 



CoLUMBELLA scALARiNA. Col. tcstd ovatd, longitudinaliter cos- 

 tatd, apice pyramidali ; anfractibus 6-7, superne cantabulatis, 

 longitudinaliter castatis, interstitiis costarum decussatis, costis ad 

 basin continuis ; aperturd coarctatd, superne emarginatd ; peri- 

 tremate intiis denticulato, denticulis superioribus majaribus : long. 

 4rl', lat. -^ poll. 

 Hab. ad Panamam et Chiriqui, sub lapidibus. 

 This shell is of a pale colour, with spiral dark brown bands ; it is 

 covered with a thin but rough epidermis. The ribs continue to the 

 base. 



CoLUMBELLA PYROSTOMA. Col. tcstd ovatd, mcdio turgidd ; spird 

 brevi, conicd ; anfractibus 6, langitudinaliter tuber culato-costatis, 

 costis nigris, interstitiis rufescentibus ; aperturd rufd : long, 

 lat. -rV pall. 



Hab. ad oras Americae Meridionalis. (Panama and Gallapagos.) 







1 cr» 



