146 



puTicfatis ; carinis majoribus Icevlhiin vel obsolete (franosis ; anjr. 5, con- 

 vexis, ult. obtuse amjulato, husl plana vel Icrifer convexa, spiral, lirata, 

 liris aqualibtis et badia piinclatis ; ititerstitii^ traiisversim cojicinne striatis ; 

 apertura subquadrata, labro cirbre dentato, fauce intns conspiate lirata ; 

 columella obtuse unidentnta, ninrgine umbilici rer/ulai-iter tuberculato 

 tuberculis, granosis rotundatis. JIaj. cliam. 6 min. 5J. Alt. 5 mil. 



Shell small, turbinate, depressed, orbicular, rather solid, 

 sordid white and clouded red, irregularly keeled all over, with 

 the interstices finely, irregularly, neatly, obliquely lirate, and 

 peculiarly punctate ; larger keels smooth or obsoletely 

 granular ; whorls 5, convex, last obtusely angular ; base flat or 

 slightly convex, and spirally lirate with equal lira3 and spotted 

 brown, interstices transversely neatly striate ; aperture sub- 

 quadrate, lip closely dentate, throat conspicuously lirate, 

 columella obtusely unidentate, margin of the umbilicus re- 

 gularly turberculate with rounded granular tubercles. Long 

 Bav, 10 fathoms, sand, Kev, H. D. Atkinson ; Blackman's 

 Bay, W. F. Petterd. 



No. 37. DiLOiA AU3TRALI3. n.s. D.t. oblique turbinata, subconica, 

 ad peripkeriam obtuse amjulaia, pallide lutea et lineis pallide fulvis, 

 numerosis, undulose obliquis rarieyata, subnitenfe, anguste umbilicata ; 

 anfr. 6, vix convexis, obsolete liratis, apertura oblique quadrata ; Jauce 

 argentea, margaritacea ; labro i7itus incrassato, margine lato conspicuo, 

 postice producto ; columella oblique arcuata, haud tubercidata ; basi 

 tantillum convexa, tenuiter et regulariter spiraliter lirata; umbilico albo, 

 radiatim striato. Diam. maj. 16, min. 14, alt. 13. 



Shell obliquely conical and turbinate, obtusely angled at 

 the periphery, pale yellow and variegated with numerous pale 

 brown undulating and oblique lines, somewhat shining, 

 narrowly umbilicate ; whorls 6, scarcely convex, obsoletely 

 lirate ; aperture obliquely quadrate ; throat silvery and 

 pearly ; lip thickened within with a broad conspicuous margin 

 posteriorly produced; columella obliquely arcuate, not tuber- 

 culate ; base very slightly convex, finely and regularly spirally 

 lirate; umbilicus white, radiately striate. North Coast. 

 Rare. W. H. Petterd. 



I think this shell has been confounded with Trocliocochlea 

 ttrioJatus, Wood. It is only doubtfully referred to Biloma as 

 it has an umbilicus. But the gen us itself is a very question- 

 able one. 



No. 38. MoKiLEA TCRBIXATA. n.s. M.t. turbinato-conoidea, ad apicem 

 usque perspective urnbilicata, carnea-albida, strigis el maculis pallide/uscis 

 nebulosa ; anfr. 6, rotundatis, superne obtuse angulatis et subcmialiculat'is, 

 tpiraliter sulcatis, et liris numerosis '(12 circiterjmaj. etmin. alternantibus, 

 cingulatis ; sutura imprcKsa ; apice obtuso, iridescente; ult. anfr. ad 

 peripk(Briam angulato ; basi convexa, lirata et tenuiter, spiraliter trans- 

 ve^sim striata ; ajjerttira transverse ovata ; labro incrassato, margaritacea, 

 inti'-f lirato ; columella brevi. declivi-concava ; margine umbilici tricostato, 

 4 t'dierculis terminato. Long. 18, lat. 20, alt. mil. 



Shell turbinately conical, perspectively umbilicate to the 



K 



