200 fissurellidjE. 



108. variegata (f. 172, 173), Sowb. G. B. 2.— Quam F. 

 minnta magis depressa, cancellata, alba, fasciis interrupts radianti- 

 bus variegata; foramine oblongo, margine albo. Obs. This species 

 is variegated with interrupted radiating bands ; it is flatter than 

 F. mlnuta, and has not the arched back nor the black-edged 

 foramen of that species. 



109. angustata (f. 170, 171), Sowb. G. B. 2.— Elongata, 

 angustaht, dorso arcuato, alba, nonnunquam fulvo radiatim fas- 

 ciata, minute cancellata ; foramine parvo, circulari. Obs, Differ- 

 ing from the preceding in the smallness of the foramen and in the 

 narrow and arched form. 



110. pica (f. 181), Sowb. — Oblonga, dorso arcuato, alba, an- 

 gulatim olivaceo variegata, costis scabris numerosis et alteris mino- 

 ribus alternis radiata; intus pallide can'uleo; margine deuticulato, 

 ad latera elevato, arcuato ; foramine rotuudo, valide antico. Obs. An 

 elongated arched species, variegated by angular broad patches of 

 olive-green. The foramen is round. 



111. in/equalis (f. 183, 184.), Sowb. — F. pica simili, sed 

 coloribussuffusis; foramine elongato, tripartito. Obs. The colours 

 in this species are radiated and suffused, the back is less arched 

 than in the preceding, and above all, the fissure, instead of being 

 rounded, is long, narrow and lobed. 



112. corbicula (f. ISO), Sowb. G. B. 2.— Quam F. pica et 

 F. inceqaalis magis depressa, patellreformi, valide cancellata. Obs. 

 Less arched than the preceding, with coarser cancellation. 



113. lanceolata (f. 1S2), Soivb., G. B., 2. — Quam F. pica 

 et F. inrequalis antice multo magis angustata. Obs. The sud- 

 den narrowing of the front part distinguishes this from the two 

 preceding species, besides the cancellation being a little more 

 depressed. 



114. articulata (f. 176), Soivb. G. B. 2.— Elongata, com- 

 pressa, fulva, fusco fasciatim variegata, liris concentricis et costis 

 radiautibus moniliferis alternatim majoribus, quarum nonnullis 

 nigro articulatis, cancellata ; foramine elongato, longe supra medium 

 posito. Obs. A beautifully sculptured and figured species in the 

 collection of Mr. Hanley, in which some of the most prominent ribs 

 at regular intervals are articulated with black. 



115. cancellata (f. 187, 189), Solander. — Oblonga, depressa, 

 roseil-grisescente, plerumque griseo in fasciis radiantibus variegata ; 

 liris concentricis et costis radiantibus rotundis noduliferis alter- 

 natim majoribus cancellata: intus grisea; callo interno angusto, 



