﻿PTEROPODA.— Platk VI. 



Species 44. (Mus. Sowerbj-.) 



SiN'isiGERA MICEOSCOPICA. Siuu. testd siibglobosd, fpi- 

 raliter striata; sinrd hrevi , siibconicd ; anfractllus 

 qiiiiiis, rotund! s, nltinw maijno ; aperturd subro- 

 tuiidd, columelld tenui, acuta, rectiusculd, lahro 

 hilohnti), lohis iiiodemte jifodudis. 



The MicKOSCoPic Sinosigera. Shell subglobose, spi- 

 rally striated, spire short, subconical ; whorls 

 tive, rounded, last large ; aperture rather 

 rounded, columella thin, sharp, rather straight, 

 outer lip two-lobed ; lobes moderately produced. 



(tiiay. (Struthiolaria). Voyage of the Blossom. 



dhelilropis Hanleyl. Forbes. 



llib. Atlantic Ocean. 



The principal difference between this and the pre- 

 vious sjjecies is that the former is striated spirally 



only, and the latter is cancellated. 



ahuost booked ; dorsal surface radiately slightly 

 grooved; aperture broad, outer lip .slightly lobcd. 



Eydodn et SouLEYET. Voy. de la Bouite. 



Bah. r 



/»/■ 



Species 46. (AIus. ?) * 



AuSTRALE. Bal. testa anguxtd, vcrsiis tcr- 

 I iillriiiKiti!. lid hitera convexiuscidd ; aper- 

 'ihliiij':,i:i. hihi-n 1 1 riinmiato ; apJCB in spini. 



itiali: 



Till: AusTUALiAN Balantidm. Shell narrow, atten- 

 uated towards the end ; rather convex at the 

 sides ; aperture sv^btrigonal, outer lip acuminated ; 

 apex produced into a mamillated spike. 



l)'Oi!Bir,\Y. Voy. Amer. Merid. 



Hal,. r 



ed). 



■ ?y 



(lenus BALANTIUM ( 

 Species 45. (Fig. a, b. Mus. 



Bai.antium inelatum. Bal. teMd utrlnq 

 trigond, versus apicem deewrvd, fen 

 facie dorsali radiatim leviter sulcata 

 lata, labro leviter lobalo. 



The inflated Balantium. Shell convex m 

 side, trigonal, vent downwards towards th' 



apertu 



each 

 ipex. 



'"/" 



Species 47. (Mus. ?)* 



Hai.axtii'm Chaitalii. Bal. testa triijoud 



/raiif^versc .•'ulcafd, ad latcra subniinyiiiald ,- aii- 

 ;/»//.v laleralibiis aciUis ; apice atlriinnl,: ,/,»- 

 nii.iato. 



CiiAriAi/s Bai.antium. Shell trigonal, compressed, 

 ti'ansversely grooved, slightly bordered at the 

 sides ; apex attenuated, acuminated. 



Eyiioi'n et Soui.KYET. Voy. de la Bonite. 



Eah_ r 



Then Love thrt- e .spec 

 ~ting littU- genus .is n 



]5al 



the principal collections. 



