583 



substriata, lineis insculptis transversis tota obtecta, lineis subdis- 

 tantibus. 



Shell cylindrical, in form of a roll of paper, anteriorly slightly 

 dilated, white, semipellucid, extremities truncated, slightly rounded, 

 longitudinally somewhat striated, entirely covered with transverse 

 engraved lines, lines rather wide apart. 



Shores of Borneo. 3Ius. Cimiing. 



74. Bulla vitrea (pi. cxxiv. f. 102), Adams. 



B. testa ovato-cylindracea, alba, pellucida, longitudinahter sub- 

 striata, sub lente minutissime transversim striata ; labro subrecto, 

 postice producto, rotundato. 



Shell ovately cylindrical, white, pellucid, longitudinally substri- 

 ated, under the lens very finely transversely striated ; outer lip 

 rather straight, posteriorly produced and rounded. 



Cagayan, Island of Mindanao; Island of Luzon ; sands. Cuming, 



75. Bulla tenera (pi. cxxiv. f. 103), Adams. 



B. testa oblique subovali, cornea, peUucida, longitudinahter 

 valde striata, subviridi, minutissimis lineis transversis ; labro recto, 

 postice rotundato. 



Shell obliquely oval, horny, pellucid, longitudinally strongly 

 striated, rather green, with very minute transverse lines j outer 

 lip straight, posteriorly rounded. 



Hah. ? Mns. Cuming, 



76. Bulla tenella (pi. cxxiv. f. 104), Adams. 



B. testa ovali, antice subangustata, tenui, fragihssima, cornea, 

 peUucida, in medio subgibbosa, longitudinahter substriata, trans- 

 versim irregulariter lirata, lineis minutissimis transversis ; labro 

 in medio subangulato, postice producto, rotundato. 



Shell oval, anteriorly somewhat narrowed, thin, fragile, horny, 

 pellucid, somewhat gibbous in the middle, longitudinally substri- 

 ated, with transverse irregular ridges and very fine lines ; outer 

 lip rather angulated in the middle, posteriorly produced and 

 rounded. 



Hah. ? Mus. Cuming. 



77. Bulla kotundata (pi. cxxiv. f. 105), Adams. 



B. testH rotundato-ovali, tenui, cornea, subpellucida, utrinque 



