SOWERBY : NEW MARINE MOLLUSCA FROM CEBU. 127 



obliquis ; labrum percrassuin, postice sinuatum, intus tuberculatum, 

 tuberculo postico valide producto. Long. 3, diam. 1-2 mm. 



A small white sbell, with a produced spire. The columella has 

 four prominent folds, and the outer lip is thick, and armed on the 

 inner margin with several tooth-like projections, the hinder one being 

 the most prominent , between this and the juncture with the body- 

 whorl the lip is narrow and depressed, forming a shallow, rounded 

 sinus. 



4. Natica labro-tincta, n.sp. PL XI, Fig. 4. 



Testa subtecte umbilicata, oblique ovata, solidiuscula, albo-nitens, 

 ad aperturam vivide violacea, oblique subtilissime striata, striis 

 spiralibus minutissimis fere obsoletis cancellata ; spira brevis, obtusa, 

 ad apicem rufo-violacea ; anfractus 4£, primi convexi, vix declives, 

 sutura distincta sejuncti ; apertura semilunaris ; labrum crassiusculum, 

 violaceurn, callo umbilicali effuso. Operculum album nitens, laeve, 

 leviter concavo - depressum, prope margin em anguste bi - liratum. 

 Long. 7 - 5, diam. 7*5 mm. 



Chiefly characterized by the beautiful violet colouring of the lip, 

 columellar callus, and first whorls of the spire. It is distinguished 

 from JV. violacea, Sowerby, by its much smaller size, more oblong 

 form, and the entire absence of the chestnut spots, or tessellated 

 colouring, characteristic of that species. 



5. Mucronalia Philippinarum, n.sp. PL XI, Fig. 5. 



Testa oblongo-ovata, postice acuminata, antice rotundata, subrimata, 

 alba, polita ; spira acute conica, ad apicem mucronata ; anfractus 9-10, 

 convexi, supra obscurissime angulati, sutura impressa sejuncti, ultimus 

 \ altitudinis testae asquans ; apertura brevicula, subobliqua, antice 

 latiuscula ; peristoma simplex, acutum ; columella arcuata, leviter 

 incrassata. Long. 9-5, diam. 5 mm. 



A shining white shell, of a rather broad form for the genus. It has 

 a slight depression next the suture, bordered by an obtuse angle, 

 otherwise the whorls are smoothly convex. From most of the 

 specimens collected the apical whorls are entirely gone, but the type 

 appears to have all except the first, and shows its ' mucronate ' 

 character. 



6. Mucronalia ctlindrica, n.sp. PL XI, Fig. 6. 



Testa cylindracea, vix rimata, pellucida; spira elata, ad apicem 

 mucronata ; anfractus 1 0, leviter convexi, ultimus oblongus, fere 

 planus ; apertura parviuscula, antice latiuscula, postice angusta ; 

 labrum tenue, flexuosum, arcuatum ; columella oblique incurvata. 

 Long. 7, diam. 2 mm. 



A shell of a peculiarly cylindrical form, smooth, pellucid ; the lip 

 is thin, arched, and flexuous. 



7. Gltphostoma rtjgilabrum, n.sp. PL XI, Fig. 7. 

 Testa elongato - turrita, sordidc albida, solidiuscula ; spira per- 

 elongata, acuta; anfractus 10^, supra medium obtuse angulati, costis 



