116 



Columbella lanceolata. Col.testd oblongd, turritd,albidd,fulvo 

 varid; spird acuminato-pyramidali ; anfractibus 10—1 2 ; primis 

 6-7 Icevigatis ; ceteris serie unicd tuberculorum instructis ; ultimi 

 dorso subgibbo, parte inferiore transvershn striatd ; apertura elon- 

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

 riciformi : long. \fa, lat. fa poll. 



Bab. ad Insulas Gallapagos. 



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



Columbella maculosa. Col. testd oblong o-subulatd, albidd, irre- 

 gular iter fulvo maculatd; spird acuminato-pyramidali ; anfracti- 

 bus 9-10 ; primis 7-8 Icevigatis ; cateris tuberculorum serie 

 unicd coronatis ; ultimo serie alterd adjectd ; aperturd brevi, 

 canali subrecurvd : long. I, lat. -J^ poll. 



Hab. ad littora America? Centralis. (Guacamayo.) 



Dredged with Col. subulata in sandy mud. 



Columbella h^emastoma. Col. testd oblongd, Itevigatd, apice 

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

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

 externa extus incrassato, superne prominente, albo ; peritremate 

 aurantiaco ; labio interno intus denticulato ; columelld unitubercu- 

 latd : . long, -fa, lat. -fa poll. 



Hab. ad insulas Gallapagos et ad littora Panama?. 



Found under stones. 



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

 proportions. 



Columbella varia. Col. testd oblongd, decussato-costatd, apice 

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

 naliter costatis, interstitiis costarum sulcatis ; aperturd subovali ; 

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

 lat. ^fapoll. 



Hab. ad Panamam, sub lapidibus. 



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



Columbella scalarina. Col. testd ovatd, longitudifialiter cos- 

 tatd, apice pyramidali ; anfractibus 6—7, superne contabulatis, 

 longitudinaliter costatis, interstitiis costarum decussatis, costis ad 

 basin continuis ; aperturd coarctatd, superne emarginatd ; peri- 

 tremate intus denticulato, denticulis superioribus mnjoribus : long. 

 44, lat. -A poll. 



Hab. ad Panamam et Chiriqui, sub lapidibus. 



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

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

 base. 



I Columbella pyrostoma. Col. testd ovatd, medio turgidd ,• spird 

 brevi, conicd ; anfractibus 6, longitudinaliter tuberculato-costatis, 

 costis nigris, interstitiis rufescentibus ; aperturd rufd : long, fa, 

 lat. -fa poll. 



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



