76 fusus. 



35. acttticostatus, 30, Sowerby. — Testa parva fulva, 

 spiraliter interruptim distanter lirata ; spira acuminata, an- 

 fractibus 11 brevibus, costis albis, acutissime tuberculatis 

 munitis, inter costas castaneo strigata, apertura alba intus 

 distanter lirata, margine denticulato ; cauda canali alter- 

 natim spiraliter costata. — A beautiful little shell with white 

 ribs sharply tubercled by the crossing ridges. A chestnut 

 stripe between the white ribs throws them into relief and 

 gives a prickly appearance to the tubercles. 



36. inconstans, f. 57, 58, Lische. — Testa rugosa, varie 

 scabro-lirata et nodoso-plicata, strigis fasciisque varie picta ; 

 spira brevi lata, anfractibus 7, depressis, angulatis, ultimo 

 compresso-ventricoso, a canali distincto, apertura intus lirata, 

 margine crenulato, canali spiram longitudine superanti. — 

 Notwithstanding the strange variations in form, sculpture 

 and colour presented in this species, the perpendicular com- 

 pression and lateral protuberance of the last whorl give it a 

 certain recognisable individuality. 



37. articulatus, f. 66, Sowerby. — Testa gracilis tenuis 

 albida, spiraliter subdistanter lirata, inter liras striata ; an- 

 fractibus 9, rotundis, prominentibus, costis nodosis longi- 

 tudinaliter plicata, liris inter costas punctato-articvdatis 

 sutura excavata, ultimo anfractu brevi subdepresso, apertura 

 intus striata, margine crenato. — Eather thin and narrow 

 with spiral ribs over rather close longitudinal plaits. The 

 lira? are finely articulated with brown spots between the 

 plaits. 



38. CjELAtus, 32, Reeve. — Testa breviuscula, pallidissime 

 cornea, spiraliter distanter acute lirata, longitudinaliter dis- 

 tanter prominente plicata, plicis ad liras tuberculatis ; anfrac- 

 tibus 8, depressis, super medium subangulatis, canali brevi- 

 usculo, curvo. — In this whitish shell, the spiral threads in 

 passing over the thick and distant longitudinal ribs are 

 produced into sharp tubercles. 



39. assimilis, f. 78, A. Adams. — Testa cselato similis, an- 

 fractibus magis depresso-angulatis, apertura contracta, mar- 

 gine extus varicoso, intus denticulato, canali recto, latiusculo ; 

 colore pallidissime roseo. — At first sight resembling F. 

 ccdatus of Reeve, but differing in having the whorls more 

 depressed and more angular, the canal staighter, and 

 the mouth contracted with an external varix and denticulated 

 margin. 



