COLUMBELLA.— Plate XXII. 



Eab. ? 



The network painting of this species has a characteristic 

 pearl-like appearance. 



Species 134. (Mus. Cuming.) 



CoLUMBELLA TESSELLATA. Col. tedd ovatd, utririqiie at- 

 tenuatd, nigricante-olivaced, tnacuUs parvis suhquadra- 

 tis albis promiscue tessellatd, spird acuta, anfractibim 

 spiraliter lineari-sulcatis, longitud'maliter costatis, cos- 

 tisprope labrum evanidis ; aperturd parviusculd, lahro 

 superne emarginato. 



The tessellated Columbella. Shell ovate, attenu- 

 ated at each end, blackish-olive, promiscuously tessel- 

 lated with small, somewhat square white spots, spire 

 sharp, whorls spirally linearly grooved, longitudinally 

 ribbed, ribs disappearing near the lip ; aperture ra- 

 ther small, lip notched at the upper part. 



C. B. Adams. 



HaJ). ? 



Very closely allied to C. airamentaria. 



Species 135. (Mus. Cuming.) 

 Columbella Gouldii. Col. tedd gracili, suhfusiformi, 

 Uvido-fuscd, nitente, spird acuminatd, anfractibus de- 

 clivi-convexk, dense lirato-costatis, aii/ractu ultimo 

 medio Icevigato, ad basin spiraliter sulcata ; aperturd 

 parvd, angustd, labro varicoso, intua denticulato. 



Gould's Columbella. Shell slender, somewhat fusi- 

 form, livid-brown, shining, spire acuminated, whorls 

 slopingly convex, closely ridge-ribbed, last whorl 

 smooth in the middle, spirally grooved at the base ; 

 aperture small, narrow, lip varicose, denticulated 

 within. 



Agassiz, MS. Mus. Cuming. 



Hab. New York Harbour. 



Of a peculiar yellowish-livid-brown colour, shining, and 



sharply slenderly ribbed, the ribs gradually disappearing 



on the last whorl. 



Species 136. (Mus. Cuming.) 



Columbella dichroa. Col. testa subpyramidali, lavi- 

 gatd, politd, albd, ca-staneo-aurantio late longitudina- 

 liter reticidato-strigatd ; aperturd parvd, latiusculd, 

 labro vix denticulato. 

 The two-coloured Columbella. Shell subpyramidal, 

 smooth, polished, white, longitudinally broadly net- 

 striped with chestnut-orange ; aperture small, rather 

 broad, lip scarcely denticulated. 

 SowERBY, Pro. Zool. Soc. 1844-, p. 50. 

 Hab. Island of St. Vincent, West Indies ; Guilding. 



Distinguished by a marked style of colouring, consist- 

 ing of broad stripes of chestnut-orange network descend- 

 ing conspicuously from the apex. 



