MONOGRAPH OF THE GENUS 



EBURNA, Lamh. 



Char. Gen. Testa spiralis, solida, epidermide tenui induta, bal- 

 teo complanato, arcuatim striato, acute marginato ad basin cincta, 

 post columellam area urnbilicata seu subcomplanata. Spira gra- 

 data. Apertura magna, postice canaliculata, antiee valide emar- 

 ginata, labio externo medio arcuato; columella arcuata, postice 

 incrassata, uniplicata, antiee subcomplanata. Operculum cor- 

 neum, ovale, concentricum. 



Authors having generally agreed to remove from this genus 

 the Buccinum glabraturn of Linnaeus, which is an Ancillaria, and 

 the llonoceros plumbeum of Chemnitz, and Eburna australis of 

 Sowerby, which belong to Pseudoliva, the remaiuing species form 

 a very compact and well-defined genus. 



1. canaliculata (pi. ccxv. f. 2, 3), Solium. — E. spirata, Lamk, 

 — E. testa rhomboidea, solida, maculis fulvis magnis medio et ad 

 marginem majoribus picta ; spira products, profundi canaliculata ; 

 anfractibus prope suturam elevatis, acutangulatis ; area umbilicali 

 lata, callo magno partim clausa ; columella postice callosa. — With 

 a somewhat rhomboidal form, this species presents a deep fosse at 

 the suture by the angular elevation of the whorls. The markings 

 resemble those of a giraffe in form and colour. Philippines, etc., 

 (var. f. 3,) Ceylon, M. Layard. 



2. molliana (pi. ccxv. f. ]), C/iemn. 4, pi. 122, /. 1118 

 (Nassa). — E. Valentiana, Swains. Zool. III. — E. testa globosa, 

 solida, maculis fulvis undulatis magnis picta ; spira brevi, profunde 

 canaliculata ; anfractibus rotundis, prope suturam elevatis, acu- 

 tangulatis ; area umbilicali clausa, parva ; columella lata, sub- 

 complanata. — A globose shell, with short spire, rounded whorls, 

 grooved suture, and closed, narrow umbilical area. Persian Gulf, 

 Earl Mounttiorris. 



