4 



.53 



Cancellaria RiGiDA. Cunc. testd ovatd, rigidd, pallidd vel brun- 

 ned concolore ; spird brevi, acuminatd, contabulatd ; anfractibus 5, 

 superne angulatis, spiraliter striatis, et longitudinaUter costatis, 

 costis rariusculis, sublamellosis , acutis ; aperturd subtrigonaU, in- 

 frd in canalem brevissimam desinente ; lab'io externo inths sulcato; 

 peritremate acuto ; columelld trlplicatd, plicd inferiore minimd ; 

 labio interno corrugato ; umbilico mediocri, margine elevatiusculd : 

 long. nV. lat. ^^^ poli. 

 Hab. ad Puerto Portrero, Americae Centralis. 

 A single specimen was dredged in thirteen fathoms with a sandy 

 bottom. Mr, Sovverby has several much larger specimens, \vith vvhose 

 locality he is unacquainted. — G. B. S. 



Cancellaria Cassidiformis. Canc. testd ovali, fvlvd; spird brevi, 

 apiee acuminato ; anfractibus 6, spiraliter sulcatis, superioribus 

 angulato-nodulosis, ultimo majcimo, prope suturam serie unicd tu- 

 bercvlorum, inf ra fascid pallidd, instructo ; suturd distinctd, infrd, 

 subcanaliculatd ; aperturd oblongd, inf ra in canalem brevem desi- 

 nente; peritremate obtuso; labio interno expanso; columelld tripli- 

 catd, plicd superiore majore : long. l-iV. l«t. 1 poli. 

 Hab. ad Panamam. 



The young shells of this species resetnble those of the Canc. nodu' 

 lifera, in the Appendix to the Tankerville Catalogue, p. xv. The fuU- 

 grown shell is here described from a specimen in Mr. Sovverby's col- 

 lection, all those obtained by Mr. Cuming being young. 



Dredged from a sandy muddy bottom in sixteen fathoms water. — 

 G. B. S. 



Cancellaria ovata. Canc. testd ovali, Icevigatd, brunned, epider- 

 mide tenui fuscd indutd ; spird brevi, subacuminatd ; atfractibus 7, 

 spiraliter sulcatis, ultimo mazimo, ventricosiusctilo į suturd di- 

 stinctd ; aperturd clongatd, superne. angusiiore, acuminatd, inf ra 

 emarginatd, canalem brevissimam efformante ; peritremate acuto, 

 prope basin sinuato, labio eorterno intus sulcato ; columelld plicis 

 duabus, validis, tertid inferiore obsoletd ; umbilico minimo vel nulio : 

 long. 1^V. lat. -,\ poli. 

 Hab. ad Sanctam Elenam, Columbise occidentalis. 

 This species resemh\es Canc. reticulata more nearly than anyother; 

 its proportions are however very different, and it is a much smoother 

 shell : the smaller volutions are somevvhat cancellated, 



Found in from eight to ten fathoms vvater wilh a sandy bottom. — 

 G. B. S. 



Cancellaria acuminata. Canc. testd ovato-oblongd, la:vigatd, 

 fulvescente, pallidiore subfasciatd ; spird mediocri, subulato-acti- 

 minatdį anfractibus 6 — 7, spiraliter sulcatis et longitudinaUter ob- 

 solete costatis, ultimo magno ; aperttird mediocri, superne acumi- 

 natd, infrči emarginatd, canalem brevem efformante ; peritremate 

 acuto, crenulato, prope basin sinuato ; labio intiis sulcato ; colu- 

 melld plicis duabus validis, tertid obsoletd inferiore ; umbilico mi- 

 nimo vel nulio : long. -,V, Int. 4-į^ poli. 



Hab, ad Guacamayo, Americae Centralis. 



