6a 



politd ; anfractibus planis, superioribus transversi sulcaiis ; alhd 

 brunneo interrupte Ir if asciatd, fascia posteriore lata maculis irre- 

 gularibus, mediand angustd, anteriore latiore maculis quadratis. 

 Axis 2-!r, diam. -j- unc. 

 Knorr, Delicise, vol. iii. t. 23. f. 3. 



This species differs from Ter. maculata by being more slender, 

 and by having the front of the whorls spotted. From Ter. tigrina it 

 is distinguished by the marbling of the back of the whorls. 



^ Terebba affinis. Ter. testd turritd, subulaid, gracili, solidius- 

 culd ; anfractibus planis, transverse punctato-sulcatis, tenuiter 

 spiraliter striatis, sulco spirali posteriore profundo ,- aperturd 

 parvd ; albd nebulis lineisque spiralibus tribus vel quatuor sa- 

 turate nifis. 

 Axis 14 unc. 

 Var. a. Parva. I^ unc. 



b. Gracilior. 1 unc. 

 Allied to Ter. nubeculata, but smaller and more slender in its 

 proportions. 



Terkbka rudis. Ter. testd turritd, subulatd, longitudinaliter 

 plicatd, spiraliter sulcatd, cancellatd ; anfractibus planis, cin- 

 gulo posteriore convexiusculo, noduloso ; aperturd mediocri ; pal- 

 lide Jlavd, apicejlavo. 



Axis I4- unc. 



Terebra striata. Ter. testd turritd, subulatd, gracillimd, Icevi, 

 striis spiralibus distantibus; anfractibus convexiusculis, sulciscur- 

 vatis distantibus, cingulo parum noduloso, superioribus profundi 

 sulcatis cinguloque altero albo-noduloso, ultimo antice striis spi- 

 ralibus frequentibus ; aperturd minimd ; pallide brunned. 



Axis ]-ir unc. 



Resembles Ter. affinis, but the grooves are not punctate. 



Terebra undulata. Ter. testd turritd, subulatd, gracillimd, 

 longitudinaliter undatd, plicis angularibus Icevibus, interstitiis 

 linearibus rufis minute punctatis ; anfractibus planiusculis, serie 

 posticd tuberculorum alborum majusculorum ; aperturd parvd; 

 pallidijlavd. 



Axis H unc. 



Terebra alba. Ter. testd turritd, subulatd, costis longitudinalibus 

 spiralibusque frequentibus cancellatd ; anfractibus planis, cingulo 

 convexiusculo ; aperturd parvd ; albd. 



Axis 4 unc. 



»' Terebra flava. Ter. testd turritd, ovato-subulatd, longitudina- 

 liter plicatd plicis frequentibus aequalibus, striis spiralibus fre- 

 quentibus punctatis ; anfractibus planis, cingulo convexiusculo ; 

 pallida Jiavd. 



Axis 1 unc. 



Var. Subulata, gracilis, costis longitudinalibus magis acutis. 



