OF CONCHOLOGY. 71 



Shell stout, heavy, ovate ; spire short, convex ; whorls flatly 

 convex, decussated throughout by longitudinal ribs and trans- 

 verse grooves ; ribs small, close-set, and slightly curved ; last 

 whorl convex more than one-half the length of the shell, and 

 grooved at base ; whorls narrowly marginate at the suture ; 

 aperture oblong-ovate, columella and outer lip strongly ridged, 

 lip varicose on its outer edge ; canal broad ; wholly dark reddish 

 brown. 



The above is an unusual form for a tropical species. I know 

 of none with which it can be compared. 



Nassa balteata, Pease. Plate viii, fig. 5. 



T. acuminato-turrita, solida ; anfr. 6, rotundato-convexis, 

 sutura impressa ; longitudinaliter costatis, costis 11, rotundatis, 

 interstitiis transversim sulcatis ; apertura parva, rotundato- 

 ovata ; labro intus lirato, extus varicose ; columella callosa, 

 tenuiter lirata ; canali angusto ; alba, fulvescente bifasciata. 



Long. 8|. Diam. 4 mill. 

 Hah. Insl. Ebon. 



Shell acuminately turrited, solid ; whorls 6, roundly convex ; 

 suture impressed, longitudinally ribbed, ribs 11, rounded, inter- 

 stices transversely grooved ; aperture small, roundly ovate ; lip 

 ridged within, varicose on its outer edge ; columella callous, 

 finely lirate ; canal narrow. White, encircled by two yellowish 

 brown bands. 



Engina nodulosa. Pease. Plate viii, fig. 11. 



T. elongato-fusiformi, subturrita ; anfr. longitudinaliter cos- 

 tatis, costis 7, parvis, non prominentis, interstitiis concavis, 

 costis transversis decussatis, costis 5, super costis longitudinalibus 

 nodulosis, nodis compressis, interstitiis striis elevatis decussatis ; 

 anfr. superne concavo-angulatis ; labro dentato-lirato ; columella 

 laevis ; canali vix recurve ; nigricans, anfr. ultimo medio fascia 

 albida cingulata, nodis rufescente fuscis. 



Long. 15. Diam. 9 mill. 



Hah. Insl. Ebon. 



Shell elongate-fusiform, somewhat turrited; whorls longitudi- 

 nally ribbed, ribs 7, small, not prominent, interstices concave, 

 crossed'by transverse ribs, five in number, which become nodulous 

 in passing over the longitudinal ribs, nodules compressed, inter- 

 stices decussated by fine raised striae ; whorls concavely angulated 

 above, below the suture ; lip dentately lirate within ; columella 

 smooth ; canal slightly recurved ; blackish, last whorl encircled 

 by a whitish band round the middle, nodules brownish. 



