EMARGINULA.— Plate VIII. 



7iodosis, incequalibiis, qiiarum tribiis aniicis majorihus 

 TadiatA ; apice centrali, ohtuso ; Jissiird brevissimd. 



The imbricated Ejiarginula. Shell large, ovate, de- 

 pressed, fulvous, ferrugiDOus in the middle, rayed 

 with rounded, nodose, unequal ribs, of which tlie 

 three anterior are the larger ; apex central, ob- 

 tuse ; fissure very short. 



A. Adams. Proc. Zool. Soc, 1851. 



llab. Mouth of Victoria Kiver, S. Australia. 



Species 58. (Mus. Brit.) 



Kmakginula Tas5l«;i^. Ema. testd ni/josd, pallida, 



conicd, costis nagnis, nodosis, incequalibus radiatd ; 



apice elevato, valde retrorso : costAfissurali eJowjatd, 



prominenti ; fismrd brevi. 

 The Tasmanian Ejiarginula. Shell rugose, pale, 



conical, rayed with large, nodose, unequal ribs ; 



apex elevated, much tlirown back ; fissural rib 



elongated, prominent ; fissure short. 

 SowEUBY. Thesaurus Conchyliorum. Fissurellida*, 



Emarginula, sp. 49, fig. 72. 

 Hab. Tasmania. 



Species 59. (Fig. a, b, Mus. Brit.) 

 Emargintla Jatonica. Ema. t,std siibovatd, postice si(b- 



contractd, temdter costatd, 2»"pureo-fuscd ; apice 



valde retrorso ; dorso aniice arcuato ; Jissurd brevi- 



ihculd, incisd. 

 The Japan EsiARGrNULA. Shell subovate, posteriorly 



rather contracted, finely ribbed, purple-brown ; 



apex much turned backwards; back arched in 



front ; fissure rather short, incised. 

 SowEKBY. Thesaurus Conchyliorum. Fissurellids, 



Emarginula, sp. 36, figs. 43, 44. 

 Hub. Japan. 



Species 60. (Mus. Brit.) 



Emarginula Guadaloupensis. Ema. testd rugosd, 

 honied, viridi, costis incequalibus, clatliratis, nodosis 

 radiatd ; interslitiis foveolatis ; apice elevato, acu- 

 minata ; costd fissurali prominenti ; Jissurd brevis- 

 simd. 



The Guadaloupe Emarginula. Shell rugose, conical, 

 green, rayed with unequal, latticed, nodose ribs, 

 with pitted interstices ; apex elevated, acuminated ; 

 fissural rib prominent ; fissure very short. 



SowERBT. Thesaurus Conchyliorum. Fissurellida;, 

 Emarginula, sp. 55, fig. C9. 



Hab. Guadaloupe. 



A rough, irregular shell, coarsely resembling Emar- 

 ginula Pankiensis, but not having the symmetrical 

 sculpture of that shell. 



