48 
Hab, The west coast of America, between 2° 47’ south, and 9° 55! 
north latitude ; viz. Bay of Guayaquil, Panama, and Veragua, in from 
seven to twenty-three fathoms. 
CANCELLARIA CREMATA. Canc. testd oblongd, subuttenuatd, fusca, 
lucidd ; anfractibus quinis, cancellatis, interstitiis magnis, trans- 
versis vel subquadratis ; aperturd oblongd, superné plicd unicd ; 
labro intis sulcis subdistantibus, labio interno expanso ; columelld 
triplicatd ; umbilico mediocri ; canali breviusculo. Axis 10 lin. 
Hab. Bay of Panama; from a muddy bed in from four to ten fa- 
thoms. 
The figures in the ‘Conchological Illustrations,’ Cancellaria 9 and 
10, appear to me to represent two distinct species, both of which were 
collected in the Sulphur. Fig. 10 corresponds more closely with the 
description of C. indentata, and to this I would limit the species. The 
opinion which I had formed from the specimens in my own posses- 
sion, became fully confirmed in the examination of those in Mr. Cu- 
ming’s collection, and a fine shell belonging to him enables me to 
enrich the description. It may be desirable to remark that M. Kie- 
ner has copied both figures, and assigns them to one species. 
CaNCELLARIA corRUGATA, Canc. testd bucciniformi, fused ; an- 
fractibus quaternis, subventricosis, rugis parvis longitudinalibus 
confertis indutis, lineis impressis decussatis ; aperturd oblongd, 
fused; labro intis sulcato ; columella plicis duabus albidis instructd ; 
umbilico nullo ; canali mediocri. Axis 8 lin. 
Hab. Bay of Guayaquil. From seven fathoms; mud. 
CaNCELLARIA ELATA. Canc. testd ovatd, elongatd, acuminatd ; an- 
fractibus septenis costatis, superneé angulatis, lineis elevatis decus- 
satis ; suturd profundd ; aperturd ovali ; peritremate superne dis- 
juncto ; labro intis sulcato; columella triplicatd, plicd inferiore 
maaximd ; umbilico parvo, subocculto ; canali inflexo. Axis 9 lin. 
Hab. A single specimen was obtained at Panama, from thirty fa- 
thoms. 
This shell will always be readily distinguished by its elongated 
form, shouldered ribs, and by the remarkable circumstance of the 
plaits on the columella being reversed in size, the inferior being the 
largest. 
CaNcELLARIA FuNICULATA. Canc. testd ovutd, elongatd; anfrac- 
tibus senis, costatis, superné subangulatis ; costis subdistantibus 
elevatis, rotundatis, nodulosis, lineis elevatis decussatis ; suturd 
profunda ; labro intis sulcato ; columelld plicis tribus parvis ; um- 
bilico marginato ; canali subnullo. Axis 8 lin. 
Hab. A single specimen only was obtained by the dredge from 
seven fathoms, sandy mud, in the Gulf of Magdalena, California. 
CANCELLARIA BICOLOR. Canc. testd retusd, contabulatd, fusco- 
nigricante ; anfractibus septenis, angulatis, procul costatis ; costis 
acutis, lineis elevatis distantibus decussatis; aperturd trigond, 
