589 



Shell half an inch in length, subcyliudrical, thin, the anterior 

 and posterior ends transversely striated, hyaline ; the under part 

 brownish white ; outer lip not reflexed in the middle, with a 

 single fold above, the other end rounded. Animal yellowish ; the 

 head and dilated sides of the foot light green ; head rhomboid, 

 subacute. 



Near Suez and Djedda, Red Sea. Mus. Cuming. 



96. Bulla nitida (pi. cxxv. f. 127), Adams. 



B. testa perparva, obovata, alba, opaca, nitida, basi dilatata, 

 vertice rotundato, profunde umbilicato, superne et inferne trans- 

 versim striata ; apertura superne producta, angusta, inferne dila- 

 tata ; columella simplici, reflexa ; umbilico parvo ; labro superne 

 rotundato, arcuato. 



Shell very small, obovate, white, opake, shining, dilated at the 

 base, apex rounded and deeply umbilicated, transversely striated 

 above and below ; aperture produced above and narrow, inferiorly 

 dilated; columella simple, reflected; umbilicus small; outer lip 

 rounded superiorly and arched. 



Shores of Borneo. Mus. Cuming. 



97. Bulla pyriformis (pi. cxxv. f. 128), Adams. 



B. testa parva, obovata, basi valde dilatata, gibbosula, nitida, 

 Isevi, alba, peUucida, apice truncata, obsolete longitudinaliter sul- 

 cata, superne et inferne transversim striata ; spira non manifesta, 

 vertice subumbilicato ; apertuja superne angusta, inferne valde 

 ddatata ; labio externo, superne acute truncato ; columella reflexa, 

 in medio subcallosa ; umbihco profundo. 



Shell small, obovate, greatly dilated at the base, gibbose, shin- 

 ing, wliite, smooth, pellucid, apex truncated, obsoletely longitudi- 

 nally sulcated, above and below transversely striated ; spire not 

 visible, apex slightly umbilicated ; aperture narrowed above, and 

 greatly dilated below ; outer lip acutely truncated above ; colu- 

 mella reflected, rather callous in the middle ; umbilicus deep. 



China Sea. Mus. Cuming. 



98. Bulla exigua (pi. cxxv. f. 129), Adams. 



B. testa parva, elongato-ovali, postice angustata, alba, nitida, 

 longitudinaliter substriata, sub lente miuutissime striata ; apertura 

 angusta, lineari, antice dilatata ; labro postice producto, flexuoso ; 

 labio subcalloso. 



4 G 2 



