196 



antice erubescens, apice castaneo; anfr. 6 convexis, epidermide fusco 

 hie- illic obtectis; sutura impressa: apertura ovata : labro simplici 

 intus incrassato, rosaceo ; fauce alba, plic§ tenui. Long. | ; hit . r polL 

 Sandwich Islands. 



A plain species, but well marked by its colors, especially by that of 

 the aperture. [A. Mastersii Pfr.] 



Ac ii \ i INKLLA NUCLEOLA. T. snlida, ovato-globosa, livido-eas- 

 tanea, ad suturam el antice albida, apice pallido ; anfr. 6 postice sub- 

 tabulatds: apertura rotundata; labro simplici; columella excavata, 

 callo obtecta ; plicS parva. Long. W', ; lat. ^ poll. Sandwich Islands. 



A small, solid species, of a livid hue. [A. brevis Pfr.] 



Achatinella micbostoma [is A. textilis Fer. = A. ventulus Rv. 



and Pfr.]. 



Achatixella FUi-iGixosA [is A. tristis Fer.]. 



Achatinella [Leptachatina] striatula. T. parva, ovato- 

 elongata, nitida, viridis. longitudinaliter concinne et creberrime 

 striato-costata ; anfr. 7 convexis, ultimo partem dimidiam spine 

 adequante: apertura angusta, seminularis; labro albido, incrassato. 



Long. ■£-$ ; lat. -^ poll. Sandwich Islands. 



No) unlike I'.nl. obscurus in general appearance. Distinguished 

 from several similar species by its more slender form and by its beau- 

 tifully barred surface. [A. clara Rv. and Pfr.] 



D^p- Vol. ii. 37, (February 1845); and Journal, v. 290. 



PHOLAS [Martesia] BRANCHIATA. T. oviformis. clausa, postice 

 acuminata, areolis tribus triangularibus partita; areola antica plicis 

 numerosis concentricis serratis munita; medial) transverse subtiliter 

 striata: postica lamellis corneis flexihbus imbricatis instructa; dorso 

 scutis tribus obtecto, tmico umbonali magno orbiculari; duobus mar- 

 ginalibus Lanceolatis ; duobus quoque ventralibus; apophysi exili, 

 flexuoso-falciformi. Long. 1^; lat. -|;'j poll. Hab. Liberia. Dr. C.J. 

 Batt s. 



Psammobla FiGL i\.\. '1'. crassa, sub-ovalis, sub-equilateralis, 

 rufo-cinerea, antice rotundata, postice hians, sub-rostrata, valde flex- 

 apice emarginato; valvis concentrice laminoso-striatis, radiatim 

 lineo'atis; natibus elevatis, attigentibus ; dentibus cardinalibus divar 

 ricatis; intus alba, punctis numerosis indentata. Long. 3^; alt. 2\\ 

 lat. If poll. Liberia. Dr. C. J. Bates. 



Ti i i.i\\ rubicunda. T. tenuis, transversa, inequivalvis, antice 

 semi-elliptica, postice triangularis, flexuosa, apice truncato, concen- 

 trice el radiatim minutissime sti'iata, natibus post-medianis ; valvar 

 dcMr.i planulata, postice areolam triangularem lamellosam habente ; 



