FASCIOLAEIA. 1 3 



distant! bus cincta ; anfractibus ad suturam hand crenidatis, 

 baud sulcatis. — Tbe strise, wbich in tbe preceding species 

 appear in tbe upper and lower parts of tbe sbell, altliougb 

 seldom all over, are quite absent in tbis species. Tbis, 

 togetber witb tbe distant spiral lines and tbe absence of 

 crenulation or groove at tbe suture will suflSciently distinguisb 

 between tbe two. 



17. PORPHYROSTOMA, f. 27, 28, Adcims and Reeve. — Testa 

 clavata, albida, pallida, superne ventricosa; spira brevi, 

 apice papilloso ; anfractibus brevibus ; prope suturam angu- 

 latis, ad angulum regulariter tuberculatis, supra angulum 

 declivibus ; canali elongato retrorsim elevato.— Tbis sbell 

 seems to bear tbe same relation to otiier species of tbe genus 

 Fasciolaria as Mnrex Motacilla does to Muripes generally, 



