﻿p u p I N I D j:. 



Plate IX. 



{^fECTALO^fASTo^fA.) 



>pocu's 



(Mns. Sowerby.) 



Meoalomastoma D'Orbioxyi. Meij. testa ohlongo- 

 snbciilindricd, Icevigata, omnino pallide aurantid vel 

 fasco-aumntid, anfractibus infenorib us fascia fused 

 latdpictd; anfractibus sex, primis rotundis, bre- 

 vibus ; medianis convexitisculis, altis ; ultimo altis- 

 sinw, infra prope aperturam carinaio, aiKjusti; 

 umbilicato ; aperturd aiitice subprodtictd, cirralari, 

 margine integro, rotundo. 



D'Okuigny's Megalomastoma. Shell oblong-stibeylin- 

 drical, smooth, all over pale orange or brown 

 orange, with tlie lower whorls painted with a 

 broad brown band ; whorls six, the first rounded, 

 short ; middle rather convex, high ; last very 

 high, keeled below near the aperture, narrowly 

 uinbilicated ; aperture anteriorly rather pro- 

 duced, circular, margin entire, rounded. 



TfeikI'-ee. Adams. Sowb. The.s. Coneli. Pupinld.r, 

 Megalomastoma, Fig. 12, 13. 



Eab. Haiti, Pern. 



Species 78. (JIus. Sowb.) 



Mkoalomastdma suspensum. Mcij. testd aiigustc pijra- 

 midatd, ublique striata, fiimoso-fiiscd ; anfractibus 

 novem, gradaiim crescenlibus ; ultimo alto, infra, 

 umbilicato et carinafo ; aperturd descendente, sub- 

 ocatd, margine angusto, albo, planulato, ad siitii- 

 rain aciiminato. 



The scspenhed MEaALOMASTOMA. Shell narrowly pyra- 

 midal, obliquely striated, smoky-brown ; whorls 

 nine, gradually increased ; last high, umbilicated 

 and keeled below ; aperture descending, rather 

 ovate, margin narrow, white, flattened, acumi- 

 nated at the suture. 



GuiLDiNG. Adams. Sowb. Thes. rupiniJn; Megalo- 

 mastoma, Fig. 14. 



Cyclostoma. AntiUarum. Sowerby. 



Hab. Isl. St. Thomas, Antilles. 



Species 79. (Mus. ? Copied.) 



Megalomastoma tekeccosi.m. Meg. testd brevi, sub- 

 pyramidatd, obscure fulvd, minute nodiiHosd ; an- 

 fractibus sex, gradatim crescentihus, ultimo ante 



aperturam angustissinw uiiihilimto ; aperturd sub- 



rutundd, margine albo, convexo. 

 The wakted Megalomastoma. Shell short, rather 



pyramidal, dull brown, minutely nodose, whorls 



six, gradually increased, last very narrowly um- 



biHcated before the aperture; aperture rather 



round, margin white, convex. 

 Shdttleworth. Adams. Sowb. Thes. rupinida\ 



Megalomastoma, Fig. l.j. 

 Hab. Porto Rico. 



Species 80. (Mus. Brit.) 



Megalomastoma complanatum. Mrg. tpstd solidd, 

 pupiTforini, venlricusd,fusco-purpared, ad suiuram 

 albo-lineatd; anfractibus quinque, penultiiaf 

 VMd-iino, ultihiii subroinpresso : iniibilirn angu.^- 

 t;ss;,„n: „j,rrturd uia.jnd, rirnihiri : margine alln,, 

 miss,., aiiudaiifntcliuii ultiuin,,, jinrliiu iidprrupii.. 



The flatie.n'eo Megalomastoma. Shell solid, pujia- 

 sha]ied, ventricose, brown-purple, with a white 

 line at the suture ; whorls five, penultimate very 

 large ; last a little compressed ; umbilicus very 

 narrow; aperture large, circular; margin white, 

 thick, partly interrupted against the body- 

 whorl. 



Pkeiffer. Adams. Thes. Conch. I'lipinida-, jMegalo- 

 mastoma, Fig. 16. 



Kab. Cuba. 



The last whorl is a little flattened in front. 



Species 81. (Mus. Sowerby.) 



Megalomastoma croceum. Meg. testd ovato- 



illidi 



nlr< 



.fractibus , 

 bus sept,: 



hrri, a,rrautid,_ 

 ferluribiis fusog',isr,\ilis 

 superni' angustivril/Ks, infra angustu uinbilicatd : 

 aperturd ovatd, pustici: angustiiisculd, margine 

 angusto, duplicato. 



The yellow Megalomastoma. Shell ovate-acumi- 

 nated, smooth, orange, or pale fulvous, with 

 brown bands on the lower whorls : whorls seven. 

 rather narrow above; below narrowly umbili- 

 cated ; aperture ovate, posteriorly I'atlier narrow, 

 margin narrow, doubled. 



Sowerby. Thes. Conch. I'u/'inida; Megalomastoaia, 

 Fig. 7. 



