488 MR. G. B. sowBRBY OX [May 16, 



broad chanael in the wing-like expansion of the lip. The longi- 

 tudinal ribs are nearly white, between which the brown colouriug 

 is partly disposed in transverse linear streaks. 



Pleurotoma ALBOVARicosA, n. sp. (Plate XXXVIII. figs. 9, 10.) 



Testa elongato-fusiformis, glabra, f^isca, alho interruptim stngata ; 

 spira elongata, turrita, acutissima ; anfractus 8, convean, loagv- 

 tudinaliter costati, costis rotundatis, albidis, zona fusca trans- 

 meatis ; sutura callosa, alhida ; anfractus idtimus elongatus, 

 costis 6 munittis, fusco bifasciaius, infra medium constrictus, 

 spiraliter striatits, long irost rains ; apertura elongata ; columella 

 fere 7'ecta ; labrum tenue, superne mediocrifer sinnatum, canali 

 longiusculo. 

 Long. 22, maj. diam. 6 millim. 

 Hab. East Africa? (ex coll. Keen). 



A prettily painted shell, with a smooth shining surface. The 

 ribs are whitish, crossed on the upper whorls with one and on the 

 body-whorl M-ith two brown zones ; the interstices between the 

 ribs are entirely bi*o\^n. l^he suture is covered with a whitish 

 callosity. 



Tt may be doubted whether this species is rightly placed in the 

 section or subgenus Surcvla, but to judge only from the shell, and 

 to propose a ne\^' section for it, would be only to add to the already 

 far too numerous ill-defined subdivisions. 



Pleurotoma edith^e, u. sp. (Plate XXXVIII. figs. 3, 4.) 



Testa sxdfusiformis, sordide alhida, fusco zonata ; spira elongata, 

 acuta J anfractus 10, Icevigati, superne leviter concavi, obtuse 

 angulati, infra angulum costati, costis elevatis, obtusis, latius- 

 culis ; sutura callosa; anfractus idtimus zona lata fusca cinctus, 

 supra medium obtuse angulatus, supra angidum concavus, infra 

 leviter convexns, basin versus attenuatus, spiraliter obscure 

 liratus ; apertura oblonga, fauce fusco-tincta ; labrum acutum, 

 superne angulaturn, ad angidum late et p)rofunde sinuatum ; 

 columella arcuata, supra callosa, canali brevissimo. 



Long. 18, maj. diam. 7 millim. 



Hab. Hong Kong. 



A shell of simple character. I place it provisionally, but with 

 some doubt, in the section Clavus, which may or may not prove to 

 be clearly separable fi'om Drillia. 



Pleurotoma ixclinata, n. sp. (Plates XXXVIII. figs. 25,26.) 



Testa svbfvsiformis, solidiuscula, luteo-albida fusco-strigata et 

 balteata ; spira elongata turrita, acuta, leviter inclinata ; an- 

 fractus 10, convexiusculi, costis numerosis acutiusculis leviter 

 obliquis mimiti, spiraliter minutissime striati ; anfractus idtimus 

 spiram vix cequans, superne leviter concavus deinde convexus, 

 prope mnrginem eosta crassa instructus, ad hasim attenuatus 



