346 Mr. E. A. Smith on Species of Bullidse. 



Atys canariensis. 



A. testa ovata, alba, pellucida, incrementi lineis irregulariter, et 

 transversim medio leviter, superius inferiusque profundius striata; 

 vertex aliquanto depressus ; apertura superius mediocre angusta, 

 super verticem paululum producta, basim versus sensim dilatata ; 

 labium tenue ad verticis medium (quo jungitur) incrassatum; 

 columella arcuata parum reflexa; umbilici regio distincte per- 

 forata. 



Long. 7 mill., diam. 41. 



Hob. TenerifFe, Canary Islands, 



Of the form of the young state oiA. naucum ; but the strise 

 are less distinct and not so far apart ; also very like caribcea^ 

 D'Orb., but rather broader. 



Atys M'Andrewn. B.M. 



A. testa elongato-ovata, superius truncata, pellucida, fasciis angustis 

 numerosis lacteis et medio una latiore cincta, transversim superne 

 basique distanter striata ; interstitium laeve ; vertex excavatus, 

 margine aliquanto acuto eircumdatus ; apertura angusta, super 

 verticem parum producta, basi sensim paululum dilatata et effusa ; 

 labrum tenue verticis medio junctum et ibi sinuatum ; columella 

 brevis, incrassata, hand torta ; umbilici regio leviter perforata. 



Long. 5 mill., diam. 2|. 



Mab. Lancerote. 



I feel much pleasure in dedicating this species to Mr. R. 

 M' Andrew, by whom it was dredged at the above locality and 

 most liberally presented to the British Museum, together with 

 a complete series of all the various species of Mollusca he 

 there collected. 



It is at once recognized by the numerous lacteous bands 

 upon a pellucid ground. 



Atys angustata. B.M. 



A. testa parva, alba, semipellucida, nitida, elongato-ovata, superius 

 basique aliquanto attenuata et fortiter striata, medio Isevi ; aper- 

 tura angusta, basim versus vix dilatata ; labrum tenue, verticis 

 medio junctum et ibi valde incrassatum et sinuatum; columella 

 curta, recta, leviter reflexa. 



Long. 5 mill., diam. 2§. 



Hob. Gulf of Suez {R. M^ Andrew), dredged. 



A very narrow species, attenuated at each end and obscurely 

 angulated in the middle ; the labrum is very thick at its junc- 

 tion with the middle of the vertex, and strongly sinuated ; 

 the superior and inferior striae are each about twelve in 

 number. 



